Company lists · Data refreshed October 2026
Top 25 Insulated windows suppliers based in the United Kingdom
RevenueBase identified 693 company matches for insulated windows suppliers associated with the United Kingdom as of October 2026 and tracks 4,455 professional contacts across them, including 1,134 with verified work emails. London is the largest hub.
This list covers company matches for insulated windows suppliers associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 27, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest insulated windows suppliers based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 230 contacts → | ||||
Exact match “First Home Improvements traces its roots to the 1970's and prides itself on installing highly innovative A rated energy saving products unrivaled by many others within our…” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 2 | 137 contacts → | ||||
Exact match “PRESS GLASS WE ARE HERE TO MAKE A DIFFERENCE.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 3 | 135 contacts → | ||||
Exact match “Manufacturers and Installers of PVCu Windows and Doors,Composite and Fire Doors and Conservatories to the Retail, Trade and Commercial Sector.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 4 | 114 contacts → | ||||
Exact match “Emplas is the window and door fabricator of choice, offering a complete range of premium-quality, high-security, energy-efficient windows and doors for the trade installer, new…” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 5 | 98 contacts → | ||||
Exact match “Clayton Glass is the UK’s favourite Independent IGU supplier and the UK’s leading Conservatory Roof Glass & Composite Door Glass Manufacturer.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 6 | 83 contacts → | ||||
Exact match “KAT UK is a Macclesfield based manufacturer of specialist glazing products, including Aluminium and PVCu bifold doors, sliding patio doors, entrance doors, French doors, windows…” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 7 | 72 contacts → | ||||
Exact match “An award-winning designer, fabricator and installer of UPVC and aluminium windows, doors and curtain walling, Unique Window Systems Ltd specialises in the supply of quality…” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 8 | 72 contacts → | ||||
Exact match “Polyframe are a multi award-winning manufacturer of high quality windows, doors and conservatories.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 9 | 51 contacts → | ||||
Exact match “CWG Choices Ltd is a double glazing supplier of windows, doors, conservatories and garden studios/offices.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 10 | 47 contacts → | ||||
Exact match “For 50 years in business, Munster Joinery is now among Europe's largest manufacturers of energy-efficient windows and doors.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 11 | 44 contacts → | ||||
Exact match “DEKKO WINDOW SYSTEMS LIMITED Manufacturers of a wide range of glazing products for professional installation companies.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 12 | 43 contacts → | ||||
Exact match “RED Systems helps main contractors and developers plan and deliver £1m to £10m packages across higher-risk residential, mixed-use and regeneration projects.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 13 | 43 contacts → | ||||
Exact match “For over 55 years, Russell Timber Technology has been the UK’s leading manufacturer of energy efficient, sustainable, precision-engineered Timber and Alu-Clad windows, doors and…” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 14 | 42 contacts → | ||||
Exact match “Thermoseal Group Limited is a supplier to the window industry, supplying a range of over 2,500 insulated glass (IG) components and a range of machinery used for manufacturing IG…” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 15 | 41 contacts → | ||||
Exact match “Granada Glazing is the UK’s leading manufacturer of premium bespoke secondary glazing systems, trusted for over 45 years by architects, developers, contractors and property…” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 16 | 39 contacts → | ||||
Exact match “Ravensby Glass are one of the UK's leading manufacturers and processors of high specification insulated glass units.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 17 | 38 contacts → | ||||
Exact match “At Joedan, we are a family run business with Retail Design Centres across the Midlands and Southern England; to include a Manufacturing Facility and a Commercial Division.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 18 | 37 contacts → | ||||
Exact match “Hazlemere is a family owned and run double glazing manufacturer and installer based in High Wycombe, Buckinghamshire.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 19 | 31 contacts → | ||||
Exact match “We focus on making reliable panels and supporting you at every stage.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 20 | 29 contacts → | ||||
Exact match “At Everglade Windows, we are devoted to progressive thinking and pushing boundaries.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 21 | 28 contacts → | ||||
Exact match “Kloeber offer high quality doors, windows and advanced glazing products.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 22 | 26 contacts → | ||||
Exact match “dualseal began as a family business in 1995, strategically established in Huddersfield to supply the local market with insulating glass units (IGUs)- incorporating the…” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 23 | 21 contacts → | ||||
Exact match “Arkoni are the leading manufacturers of steel slimline, fire rated and non-fire rated, windows, doors and curtain walling for internal and external applications.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 24 | 21 contacts → | ||||
Exact match “For almost 20 years IDSystems has manufactured, supplied and installed some of the most advanced glazing solutions on the market.” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
| 25 | 20 contacts → | ||||
Exact match “Based in Liverpool, ODL Europe is a leading supplier in the UK and Europe of added value building products for the home, with an all-encompassing product range including GRP…” Recorded in the RevenueBase company graph · Oct 27, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “insulated windows suppliers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 693 insulated windows suppliers based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 1,134 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Insulated windows suppliers based in the United Kingdom at a glance
As of Oct 27, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 693 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with the United Kingdom whose business descriptions match “insulated windows suppliers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 1,134 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on October 27, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Insulated windows suppliers by metro
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “insulated windows suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many insulated windows suppliers are there based in the United Kingdom?
RevenueBase identified 693 company matches for insulated windows suppliers associated with the United Kingdom as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
First Home Improvements tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most insulated windows suppliers?
London leads with 32 company records, followed by Birmingham (11) and Norwich (11).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,134 professional contacts with verified work emails tracked across these 693 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 27, 2026.
Ready to reach these companies? Verified emails and direct dials for all 693 insulated windows suppliers based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Insulated windows suppliers by geography
- Insulated windows suppliers based in London, United Kingdom
- Insulated windows suppliers based in Australia
- Insulated windows suppliers based in Belgium
- Insulated windows suppliers based in Canada
- Insulated windows suppliers based in France
- Insulated windows suppliers based in Germany
- Insulated windows suppliers based in India
- Insulated windows suppliers based in Ireland
- Insulated windows suppliers based in Italy
- Insulated windows suppliers based in the Netherlands
- Insulated windows suppliers based in New Zealand
- Insulated windows suppliers based in the United States
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Insulated windows suppliers based in London, United Kingdom
- Insulated windows suppliers based in Australia
- Insulated windows suppliers based in Belgium
- Insulated windows suppliers based in Canada
- Insulated windows suppliers based in France
- Insulated windows suppliers based in Germany
Company intelligence · public preview
Top 25 insulated windows suppliers based in the United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 693 matching company records for insulated windows suppliers based in the United Kingdom, with 4,455 tracked contacts and 1,134 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 27, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 insulated windows suppliers based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | First Home Improvementsfirsthomeimprovements.co.uk HQ: Norwich, United KingdomReported employees: 201-500 | Norwich, United Kingdom | 201-500 | Exact match | 230 contacts → |
“First Home Improvements traces its roots to the 1970's and prides itself on installing highly innovative A rated energy saving products unrivaled by many others within our…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Press Glass UKpressglass.co.uk HQ: Swansea, United KingdomReported employees: 1,001-5,000 | Swansea, United Kingdom | 1,001-5,000 | Exact match | 137 contacts → |
“PRESS GLASS WE ARE HERE TO MAKE A DIFFERENCE.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Nationwide Windows And Doorsnwd.co.uk HQ: Rugby, United KingdomReported employees: 501-1,000 | Rugby, United Kingdom | 501-1,000 | Exact match | 135 contacts → |
“Manufacturers and Installers of PVCu Windows and Doors,Composite and Fire Doors and Conservatories to the Retail, Trade and Commercial Sector.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Emplas Window Systemsemplas.co.uk HQ: Wellingborough, United KingdomReported employees: 201-500 | Wellingborough, United Kingdom | 201-500 | Exact match | 114 contacts → |
“Emplas is the window and door fabricator of choice, offering a complete range of premium-quality, high-security, energy-efficient windows and doors for the trade installer, new…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Clayton Glassclaytonglass.co.uk HQ: Stanley, United KingdomReported employees: 501-1,000 | Stanley, United Kingdom | 501-1,000 | Exact match | 98 contacts → |
“Clayton Glass is the UK’s favourite Independent IGU supplier and the UK’s leading Conservatory Roof Glass & Composite Door Glass Manufacturer.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | KAT UK Macclesfieldkatuk.co.uk HQ: Macclesfield, United KingdomReported employees: 51-200 | Macclesfield, United Kingdom | 51-200 | Exact match | 83 contacts → |
“KAT UK is a Macclesfield based manufacturer of specialist glazing products, including Aluminium and PVCu bifold doors, sliding patio doors, entrance doors, French doors, windows…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Unique Window Systems LTDuws.co.uk HQ: Leicester, United KingdomReported employees: 201-500 | Leicester, United Kingdom | 201-500 | Exact match | 72 contacts → |
“An award-winning designer, fabricator and installer of UPVC and aluminium windows, doors and curtain walling, Unique Window Systems Ltd specialises in the supply of quality…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Polyframepolyframe.co.uk HQ: Lenwade, United KingdomReported employees: 201-500 | Lenwade, United Kingdom | 201-500 | Exact match | 72 contacts → |
“Polyframe are a multi award-winning manufacturer of high quality windows, doors and conservatories.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | CWG Choices Limitedcwgchoices.com HQ: Corby, United KingdomReported employees: 201-500 | Corby, United Kingdom | 201-500 | Exact match | 51 contacts → |
“CWG Choices Ltd is a double glazing supplier of windows, doors, conservatories and garden studios/offices.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Munster Joinery U.Kmunsterjoinery.co.uk HQ: Warwick, United KingdomReported employees: 1,001-5,000 | Warwick, United Kingdom | 1,001-5,000 | Exact match | 47 contacts → |
“For 50 years in business, Munster Joinery is now among Europe's largest manufacturers of energy-efficient windows and doors.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Dekko Window Systems LTDdekkowindows.com HQ: Ashton-under-lyne, United KingdomReported employees: 51-200 | Ashton-under-lyne, United Kingdom | 51-200 | Exact match | 44 contacts → |
“DEKKO WINDOW SYSTEMS LIMITED Manufacturers of a wide range of glazing products for professional installation companies.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | RED Systems Limitedredsystems.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 43 contacts → |
“RED Systems helps main contractors and developers plan and deliver £1m to £10m packages across higher-risk residential, mixed-use and regeneration projects.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Russell Timber Technologyrusselltimbertech.co.uk HQ: Glasgow, United KingdomReported employees: 51-200 | Glasgow, United Kingdom | 51-200 | Exact match | 43 contacts → |
“For over 55 years, Russell Timber Technology has been the UK’s leading manufacturer of energy efficient, sustainable, precision-engineered Timber and Alu-Clad windows, doors and…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Thermoseal Group Limitedthermosealgroup.com HQ: Birmingham, United KingdomReported employees: 51-200 | Birmingham, United Kingdom | 51-200 | Exact match | 42 contacts → |
“Thermoseal Group Limited is a supplier to the window industry, supplying a range of over 2,500 insulated glass (IG) components and a range of machinery used for manufacturing IG…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Granada Glazinggranadaglazing.com HQ: Sheffield, United KingdomReported employees: 51-200 | Sheffield, United Kingdom | 51-200 | Exact match | 41 contacts → |
“Granada Glazing is the UK’s leading manufacturer of premium bespoke secondary glazing systems, trusted for over 45 years by architects, developers, contractors and property…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Ravensby Glass CO LTDravensbyglass.co.uk HQ: Dundee, United KingdomReported employees: 51-200 | Dundee, United Kingdom | 51-200 | Exact match | 39 contacts → |
“Ravensby Glass are one of the UK's leading manufacturers and processors of high specification insulated glass units.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Joedan Windows & Doorsjoedan.co.uk HQ: Tewkesbury, United KingdomReported employees: 201-500 | Tewkesbury, United Kingdom | 201-500 | Exact match | 38 contacts → |
“At Joedan, we are a family run business with Retail Design Centres across the Midlands and Southern England; to include a Manufacturing Facility and a Commercial Division.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Hazlemere Grouphazlemere.co.uk HQ: High Wycombe, United KingdomReported employees: 51-200 | High Wycombe, United Kingdom | 51-200 | Exact match | 37 contacts → |
“Hazlemere is a family owned and run double glazing manufacturer and installer based in High Wycombe, Buckinghamshire.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Isocladisoclad.co.uk HQ: North Shields, United KingdomReported employees: 51-200 | North Shields, United Kingdom | 51-200 | Exact match | 31 contacts → |
“We focus on making reliable panels and supporting you at every stage.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Everglade Windows LTDeverglade.co.uk HQ: Greenford, United KingdomReported employees: 51-200 | Greenford, United Kingdom | 51-200 | Exact match | 29 contacts → |
“At Everglade Windows, we are devoted to progressive thinking and pushing boundaries.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Kloeber UK LTDkloeber.co.uk HQ: Somersham, United KingdomReported employees: 51-200 | Somersham, United Kingdom | 51-200 | Exact match | 28 contacts → |
“Kloeber offer high quality doors, windows and advanced glazing products.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Dualseal Glassdualsealglass.co.uk HQ: Huddersfield, United KingdomReported employees: 51-200 | Huddersfield, United Kingdom | 51-200 | Exact match | 26 contacts → |
“dualseal began as a family business in 1995, strategically established in Huddersfield to supply the local market with insulating glass units (IGUs)- incorporating the…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Arkoni Limitedarkoni.co.uk HQ: Brighouse, United KingdomReported employees: 51-200 | Brighouse, United Kingdom | 51-200 | Exact match | 21 contacts → |
“Arkoni are the leading manufacturers of steel slimline, fire rated and non-fire rated, windows, doors and curtain walling for internal and external applications.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Idsystemsidsystems.co.uk HQ: Norwich, United KingdomReported employees: 51-200 | Norwich, United Kingdom | 51-200 | Exact match | 21 contacts → |
“For almost 20 years IDSystems has manufactured, supplied and installed some of the most advanced glazing solutions on the market.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | ODL Europe LTDeurope.odl.com HQ: Bootle, United KingdomReported employees: 51-200 | Bootle, United Kingdom | 51-200 | Exact match | 20 contacts → |
“Based in Liverpool, ODL Europe is a leading supplier in the UK and Europe of added value building products for the home, with an all-encompassing product range including GRP…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 693 company matches
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Insulated windows suppliers: dataset insights
October 27, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
678 records in the displayed employee bands.
15 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 693 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 27, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Insulated windows suppliers by metro
Questions about this company list
What does Exact match mean for insulated windows suppliers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many insulated windows suppliers did RevenueBase find based in the United Kingdom?
The saved snapshot records 693 matching company records, 4,455 tracked contacts and 1,134 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 27, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Insulated windows suppliers by geography
- Insulated windows suppliers based in London, United Kingdom
- Insulated windows suppliers based in Australia
- Insulated windows suppliers based in Belgium
- Insulated windows suppliers based in Canada
- Insulated windows suppliers based in France
- Insulated windows suppliers based in Germany
- Insulated windows suppliers based in India
- Insulated windows suppliers based in Ireland
- Insulated windows suppliers based in Italy
- Insulated windows suppliers based in the Netherlands
- Insulated windows suppliers based in New Zealand
- Insulated windows suppliers based in the United States
Cite this list
RevenueBase Data Team. Top 25 insulated windows suppliers based in the United Kingdom. Snapshot: October 27, 2026. https://revenuebase.ai/companies/insulated-windows-suppliers/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Insulated windows suppliers based in London, United Kingdom
- Insulated windows suppliers based in Australia
- Insulated windows suppliers based in Belgium
- Insulated windows suppliers based in Canada
- Insulated windows suppliers based in France
- Insulated windows suppliers based in Germany
Company intelligence · public preview
Top 25 insulated windows suppliers based in the United Kingdom
RevenueBase records 693 matching company records for insulated windows suppliers based in the United Kingdom, with 4,455 tracked contacts and 1,134 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 27, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 insulated windows suppliers based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | First Home Improvementsfirsthomeimprovements.co.uk HQ: Norwich, United KingdomReported employees: 201-500 | Norwich, United Kingdom | 201-500 | Exact match | 230 contacts → |
“First Home Improvements traces its roots to the 1970's and prides itself on installing highly innovative A rated energy saving products unrivaled by many others within our…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Press Glass UKpressglass.co.uk HQ: Swansea, United KingdomReported employees: 1,001-5,000 | Swansea, United Kingdom | 1,001-5,000 | Exact match | 137 contacts → |
“PRESS GLASS WE ARE HERE TO MAKE A DIFFERENCE.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Nationwide Windows And Doorsnwd.co.uk HQ: Rugby, United KingdomReported employees: 501-1,000 | Rugby, United Kingdom | 501-1,000 | Exact match | 135 contacts → |
“Manufacturers and Installers of PVCu Windows and Doors,Composite and Fire Doors and Conservatories to the Retail, Trade and Commercial Sector.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Emplas Window Systemsemplas.co.uk HQ: Wellingborough, United KingdomReported employees: 201-500 | Wellingborough, United Kingdom | 201-500 | Exact match | 114 contacts → |
“Emplas is the window and door fabricator of choice, offering a complete range of premium-quality, high-security, energy-efficient windows and doors for the trade installer, new…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Clayton Glassclaytonglass.co.uk HQ: Stanley, United KingdomReported employees: 501-1,000 | Stanley, United Kingdom | 501-1,000 | Exact match | 98 contacts → |
“Clayton Glass is the UK’s favourite Independent IGU supplier and the UK’s leading Conservatory Roof Glass & Composite Door Glass Manufacturer.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | KAT UK Macclesfieldkatuk.co.uk HQ: Macclesfield, United KingdomReported employees: 51-200 | Macclesfield, United Kingdom | 51-200 | Exact match | 83 contacts → |
“KAT UK is a Macclesfield based manufacturer of specialist glazing products, including Aluminium and PVCu bifold doors, sliding patio doors, entrance doors, French doors, windows…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Unique Window Systems LTDuws.co.uk HQ: Leicester, United KingdomReported employees: 201-500 | Leicester, United Kingdom | 201-500 | Exact match | 72 contacts → |
“An award-winning designer, fabricator and installer of UPVC and aluminium windows, doors and curtain walling, Unique Window Systems Ltd specialises in the supply of quality…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Polyframepolyframe.co.uk HQ: Lenwade, United KingdomReported employees: 201-500 | Lenwade, United Kingdom | 201-500 | Exact match | 72 contacts → |
“Polyframe are a multi award-winning manufacturer of high quality windows, doors and conservatories.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | CWG Choices Limitedcwgchoices.com HQ: Corby, United KingdomReported employees: 201-500 | Corby, United Kingdom | 201-500 | Exact match | 51 contacts → |
“CWG Choices Ltd is a double glazing supplier of windows, doors, conservatories and garden studios/offices.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Munster Joinery U.Kmunsterjoinery.co.uk HQ: Warwick, United KingdomReported employees: 1,001-5,000 | Warwick, United Kingdom | 1,001-5,000 | Exact match | 47 contacts → |
“For 50 years in business, Munster Joinery is now among Europe's largest manufacturers of energy-efficient windows and doors.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Dekko Window Systems LTDdekkowindows.com HQ: Ashton-under-lyne, United KingdomReported employees: 51-200 | Ashton-under-lyne, United Kingdom | 51-200 | Exact match | 44 contacts → |
“DEKKO WINDOW SYSTEMS LIMITED Manufacturers of a wide range of glazing products for professional installation companies.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | RED Systems Limitedredsystems.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 43 contacts → |
“RED Systems helps main contractors and developers plan and deliver £1m to £10m packages across higher-risk residential, mixed-use and regeneration projects.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Russell Timber Technologyrusselltimbertech.co.uk HQ: Glasgow, United KingdomReported employees: 51-200 | Glasgow, United Kingdom | 51-200 | Exact match | 43 contacts → |
“For over 55 years, Russell Timber Technology has been the UK’s leading manufacturer of energy efficient, sustainable, precision-engineered Timber and Alu-Clad windows, doors and…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Thermoseal Group Limitedthermosealgroup.com HQ: Birmingham, United KingdomReported employees: 51-200 | Birmingham, United Kingdom | 51-200 | Exact match | 42 contacts → |
“Thermoseal Group Limited is a supplier to the window industry, supplying a range of over 2,500 insulated glass (IG) components and a range of machinery used for manufacturing IG…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Granada Glazinggranadaglazing.com HQ: Sheffield, United KingdomReported employees: 51-200 | Sheffield, United Kingdom | 51-200 | Exact match | 41 contacts → |
“Granada Glazing is the UK’s leading manufacturer of premium bespoke secondary glazing systems, trusted for over 45 years by architects, developers, contractors and property…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Ravensby Glass CO LTDravensbyglass.co.uk HQ: Dundee, United KingdomReported employees: 51-200 | Dundee, United Kingdom | 51-200 | Exact match | 39 contacts → |
“Ravensby Glass are one of the UK's leading manufacturers and processors of high specification insulated glass units.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Joedan Windows & Doorsjoedan.co.uk HQ: Tewkesbury, United KingdomReported employees: 201-500 | Tewkesbury, United Kingdom | 201-500 | Exact match | 38 contacts → |
“At Joedan, we are a family run business with Retail Design Centres across the Midlands and Southern England; to include a Manufacturing Facility and a Commercial Division.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Hazlemere Grouphazlemere.co.uk HQ: High Wycombe, United KingdomReported employees: 51-200 | High Wycombe, United Kingdom | 51-200 | Exact match | 37 contacts → |
“Hazlemere is a family owned and run double glazing manufacturer and installer based in High Wycombe, Buckinghamshire.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Isocladisoclad.co.uk HQ: North Shields, United KingdomReported employees: 51-200 | North Shields, United Kingdom | 51-200 | Exact match | 31 contacts → |
“We focus on making reliable panels and supporting you at every stage.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Everglade Windows LTDeverglade.co.uk HQ: Greenford, United KingdomReported employees: 51-200 | Greenford, United Kingdom | 51-200 | Exact match | 29 contacts → |
“At Everglade Windows, we are devoted to progressive thinking and pushing boundaries.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Kloeber UK LTDkloeber.co.uk HQ: Somersham, United KingdomReported employees: 51-200 | Somersham, United Kingdom | 51-200 | Exact match | 28 contacts → |
“Kloeber offer high quality doors, windows and advanced glazing products.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Dualseal Glassdualsealglass.co.uk HQ: Huddersfield, United KingdomReported employees: 51-200 | Huddersfield, United Kingdom | 51-200 | Exact match | 26 contacts → |
“dualseal began as a family business in 1995, strategically established in Huddersfield to supply the local market with insulating glass units (IGUs)- incorporating the…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Arkoni Limitedarkoni.co.uk HQ: Brighouse, United KingdomReported employees: 51-200 | Brighouse, United Kingdom | 51-200 | Exact match | 21 contacts → |
“Arkoni are the leading manufacturers of steel slimline, fire rated and non-fire rated, windows, doors and curtain walling for internal and external applications.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Idsystemsidsystems.co.uk HQ: Norwich, United KingdomReported employees: 51-200 | Norwich, United Kingdom | 51-200 | Exact match | 21 contacts → |
“For almost 20 years IDSystems has manufactured, supplied and installed some of the most advanced glazing solutions on the market.” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | ODL Europe LTDeurope.odl.com HQ: Bootle, United KingdomReported employees: 51-200 | Bootle, United Kingdom | 51-200 | Exact match | 20 contacts → |
“Based in Liverpool, ODL Europe is a leading supplier in the UK and Europe of added value building products for the home, with an all-encompassing product range including GRP…” Recorded description excerpt · October 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Insulated windows suppliers: dataset insights
October 27, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
678 records in the displayed employee bands.
15 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 693 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 27, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Insulated windows suppliers by metro
Questions about this company list
What does Exact match mean for insulated windows suppliers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many insulated windows suppliers did RevenueBase find based in the United Kingdom?
The saved snapshot records 693 matching company records, 4,455 tracked contacts and 1,134 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 27, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Insulated windows suppliers by geography
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- Insulated windows suppliers based in Germany
- Insulated windows suppliers based in India
- Insulated windows suppliers based in Ireland
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- Insulated windows suppliers based in the Netherlands
- Insulated windows suppliers based in New Zealand
- Insulated windows suppliers based in the United States
Cite this list
RevenueBase Data Team. Top 25 insulated windows suppliers based in the United Kingdom. Snapshot: October 27, 2026. https://revenuebase.ai/companies/insulated-windows-suppliers/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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