Company lists · Data refreshed September 2026
Top 25 Custom window builders based in the United Kingdom
RevenueBase identified 1,390 company matches for custom window builders associated with the United Kingdom as of September 2026 and tracks 9,108 professional contacts across them, including 2,699 with verified work emails. London is the largest hub.
This list covers company matches for custom window builders 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 September 19, 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 custom window builders based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 248 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 2 | 154 contacts → | ||||
Exact match “NorDan is one of Europe’s leading manufacturers of high performance windows, doors and smart accessories.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 3 | 150 contacts → | ||||
Exact match “With the vision of our Chairman, Gerard Eadie CBE, CR Smith has grown over the past 50 years to become Scotland’s leading home improvement company.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 4 | 132 contacts → | ||||
Exact match “PRESS GLASS WE ARE HERE TO MAKE A DIFFERENCE.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 5 | 126 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 6 | 117 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 7 | 98 contacts → | ||||
Exact match “For more than 40 years across the world, AluK has been at the forefront of the design of aluminium curtain walling, window and door systems, combining unique and innovative…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 8 | 82 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 9 | 81 contacts → | ||||
Exact match “CSJ are providers of bespoke solutions to complement any home.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 76 contacts → | ||||
Exact match “Since our foundation in 1932, Sidey’s programme of sustainable and controlled growth has resulted in the company becoming one of the most successful and sustainable window and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 11 | 71 contacts → | ||||
Exact match “With over 30 years of experience, Schüco UK Ltd is a leading building envelope specialist supplying high-quality system solutions in aluminium and steel for windows, doors…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 12 | 71 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 13 | 69 contacts → | ||||
Exact match “Founded in the 1800's, CRITTALL WINDOWS Ltd was the pioneer of hot-rolled steel windows and was responsible for setting up the first steel window manufacturing plants in the…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 14 | 66 contacts → | ||||
Exact match “Polyframe are a multi award-winning manufacturer of high quality windows, doors and conservatories.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 15 | 62 contacts → | ||||
Exact match “VBH is the largest company in the hardware sector.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 16 | 61 contacts → | ||||
Exact match “Glazerite UK Group is a leading trade fabricator offering installers access to one of the most comprehensive product ranges in the industry.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 17 | 60 contacts → | ||||
Exact match “Senior Architectural Systems (Senior) is one of the UK's leading manufacturers of aluminium fenestration solutions.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 18 | 57 contacts → | ||||
Exact match “JPJ Installations Ltd are specialists in Aluminium Glazing Systems including Curtain Wall, Framing, Door and Window Systems.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 56 contacts → | ||||
Exact match “Express Bi Folding Doors are the UK's leading manufacturer & installer of bespoke aluminium products.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 20 | 56 contacts → | ||||
Exact match “Fleetwood Architectural Aluminium (FAA) is one of the UK’s leading designers, manufacturers and installers of aluminium curtain walling, facades, windows and doors.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 21 | 50 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 22 | 47 contacts → | ||||
Exact match “Our business is to support your business Modplan is a trade-only fabricator.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 23 | 45 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 24 | 44 contacts → | ||||
Exact match “Vision Arch has been designing and installing high-quality bespoke architectural facades, roof glazing, and glass atria for over 26 years now, mainly within the commercial sector.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 25 | 43 contacts → | ||||
Exact match “Crystal® was started in 1995 to offer a fair and honest service to customers wanting replacement windows and doors.” Recorded in the RevenueBase company graph · Sep 19, 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 “custom window builders”. 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 1,390 custom window builders based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 2,699 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Custom window builders based in the United Kingdom at a glance
As of Sep 19, 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 1,390 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 “custom window builders” 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 2,699 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 September 19, 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.
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 “custom window builders”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many custom window builders are there based in the United Kingdom?
RevenueBase identified 1,390 company matches for custom window builders associated with the United Kingdom as of September 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 custom window builders?
London leads with 93 company records, followed by Leicester (17) and Norwich (16).
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 2,699 professional contacts with verified work emails tracked across these 1,390 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 September 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 1,390 custom window builders based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Custom window builders by geography
- Custom window builders based in Calgary, Canada
- Custom window builders based in Mississauga, Canada
- Custom window builders based in Toronto, Canada
- Custom window builders based in Vaughan, Canada
- Custom window builders based in Mumbai, India
- Custom window builders based in Dallas, United States
- Custom window builders based in Houston, United States
- Custom window builders based in Miami, United States
- Custom window builders based in New York, United States
- Custom window builders based in Argentina
- Custom window builders based in Australia
- Custom window builders based in Austria
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
- Custom window builders based in Calgary, Canada
- Custom window builders based in Mississauga, Canada
- Custom window builders based in Toronto, Canada
- Custom window builders based in Vaughan, Canada
- Custom window builders based in Mumbai, India
- Custom window builders based in Dallas, United States
Company intelligence · public preview
Top 25 custom window builders 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 1,390 matching company records for custom window builders based in the United Kingdom, with 9,108 tracked contacts and 2,699 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: September 19, 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 custom window builders 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 | 248 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 · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Nordan UK LTDnordan.co.uk HQ: Livingston, United KingdomReported employees: 51-200 | Livingston, United Kingdom | 51-200 | Exact match | 154 contacts → |
“NorDan is one of Europe’s leading manufacturers of high performance windows, doors and smart accessories.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | CR Smithcrsmith.co.uk HQ: Dunfermline, United KingdomReported employees: 201-500 | Dunfermline, United Kingdom | 201-500 | Exact match | 150 contacts → |
“With the vision of our Chairman, Gerard Eadie CBE, CR Smith has grown over the past 50 years to become Scotland’s leading home improvement company.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Press Glass UKpressglass.co.uk HQ: Swansea, United KingdomReported employees: 1,001-5,000 | Swansea, United Kingdom | 1,001-5,000 | Exact match | 132 contacts → |
“PRESS GLASS WE ARE HERE TO MAKE A DIFFERENCE.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Nationwide Windows And Doorsnwd.co.uk HQ: Rugby, United KingdomReported employees: 501-1,000 | Rugby, United Kingdom | 501-1,000 | Exact match | 126 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 · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Emplas Window Systemsemplas.co.uk HQ: Wellingborough, United KingdomReported employees: 201-500 | Wellingborough, United Kingdom | 201-500 | Exact match | 117 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 · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Aluk GBaluk.co.ukHQ: Chepstow, United KingdomReported employees: 201-500 | Chepstow, United Kingdom | 201-500 | Exact match | 98 contacts → |
“For more than 40 years across the world, AluK has been at the forefront of the design of aluminium curtain walling, window and door systems, combining unique and innovative…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | KAT UK Macclesfieldkatuk.co.uk HQ: Macclesfield, United KingdomReported employees: 51-200 | Macclesfield, United Kingdom | 51-200 | Exact match | 82 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 · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | CSJcsj.co.uk HQ: Falkirk, United KingdomReported employees: 51-200 | Falkirk, United Kingdom | 51-200 | Exact match | 81 contacts → |
“CSJ are providers of bespoke solutions to complement any home.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | SIDEYsidey.co.uk HQ: Perth, United KingdomReported employees: 51-200 | Perth, United Kingdom | 51-200 | Exact match | 76 contacts → |
“Since our foundation in 1932, Sidey’s programme of sustainable and controlled growth has resulted in the company becoming one of the most successful and sustainable window and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Schüco UK And Irelandschueco.co.uk HQ: Milton Keynes, United KingdomReported employees: 51-200 | Milton Keynes, United Kingdom | 51-200 | Exact match | 71 contacts → |
“With over 30 years of experience, Schüco UK Ltd is a leading building envelope specialist supplying high-quality system solutions in aluminium and steel for windows, doors…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Unique Window Systems LTDuws.co.uk HQ: Leicester, United KingdomReported employees: 201-500 | Leicester, United Kingdom | 201-500 | Exact match | 71 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 · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Crittall Windows LTDcrittall-windows.co.ukHQ: Witham, United KingdomReported employees: 201-500 | Witham, United Kingdom | 201-500 | Exact match | 69 contacts → |
“Founded in the 1800's, CRITTALL WINDOWS Ltd was the pioneer of hot-rolled steel windows and was responsible for setting up the first steel window manufacturing plants in the…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Polyframepolyframe.co.uk HQ: Lenwade, United KingdomReported employees: 201-500 | Lenwade, United Kingdom | 201-500 | Exact match | 66 contacts → |
“Polyframe are a multi award-winning manufacturer of high quality windows, doors and conservatories.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | VBH GBvbhgb.com HQ: Gillingham, United KingdomReported employees: 51-200 | Gillingham, United Kingdom | 51-200 | Exact match | 62 contacts → |
“VBH is the largest company in the hardware sector.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Glazerite UK Group LTDglazeritewindows.co.uk HQ: Wellingborough, United KingdomReported employees: 201-500 | Wellingborough, United Kingdom | 201-500 | Exact match | 61 contacts → |
“Glazerite UK Group is a leading trade fabricator offering installers access to one of the most comprehensive product ranges in the industry.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Senior Architectural Systemsseniorarchitectural.co.uk HQ: Doncaster, United KingdomReported employees: 51-200 | Doncaster, United Kingdom | 51-200 | Exact match | 60 contacts → |
“Senior Architectural Systems (Senior) is one of the UK's leading manufacturers of aluminium fenestration solutions.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | JPJ Installations LTDjpjltd.co.uk HQ: Braintree, United KingdomReported employees: 51-200 | Braintree, United Kingdom | 51-200 | Exact match | 57 contacts → |
“JPJ Installations Ltd are specialists in Aluminium Glazing Systems including Curtain Wall, Framing, Door and Window Systems.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Express Bi-Folding Doorsexpressbifolds.co.uk HQ: Leeds, United KingdomReported employees: 201-500 | Leeds, United Kingdom | 201-500 | Exact match | 56 contacts → |
“Express Bi Folding Doors are the UK's leading manufacturer & installer of bespoke aluminium products.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Fleetwood Architectural Aluminium LTDfaa-group.co.uk HQ: Slough, United KingdomReported employees: 51-200 | Slough, United Kingdom | 51-200 | Exact match | 56 contacts → |
“Fleetwood Architectural Aluminium (FAA) is one of the UK’s leading designers, manufacturers and installers of aluminium curtain walling, facades, windows and doors.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | CWG Choices Limitedcwgchoices.com HQ: Corby, United KingdomReported employees: 201-500 | Corby, United Kingdom | 201-500 | Exact match | 50 contacts → |
“CWG Choices Ltd is a double glazing supplier of windows, doors, conservatories and garden studios/offices.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Modplan Limitedmodplan.co.uk HQ: Gwent, United KingdomReported employees: 51-200 | Gwent, United Kingdom | 51-200 | Exact match | 47 contacts → |
“Our business is to support your business Modplan is a trade-only fabricator.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Munster Joinery U.Kmunsterjoinery.co.uk HQ: Warwick, United KingdomReported employees: 1,001-5,000 | Warwick, United Kingdom | 1,001-5,000 | Exact match | 45 contacts → |
“For 50 years in business, Munster Joinery is now among Europe's largest manufacturers of energy-efficient windows and doors.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Vision Archvisionarch.co.ukHQ: Cambridge, United KingdomReported employees: 11-50 | Cambridge, United Kingdom | 11-50 | Exact match | 44 contacts → |
“Vision Arch has been designing and installing high-quality bespoke architectural facades, roof glazing, and glass atria for over 26 years now, mainly within the commercial sector.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Crystal Windows And Doors LTDcrystalwindows.co.uk HQ: Romford, United KingdomReported employees: 201-500 | Romford, United Kingdom | 201-500 | Exact match | 43 contacts → |
“Crystal® was started in 1995 to offer a fair and honest service to customers wanting replacement windows and doors.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,390 company matches
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Custom window builders: dataset insights
September 19, 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
1,359 records in the displayed employee bands.
31 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 1,390 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: September 19, 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 ↗
Questions about this company list
What does Exact match mean for custom window builders?
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 custom window builders did RevenueBase find based in the United Kingdom?
The saved snapshot records 1,390 matching company records, 9,108 tracked contacts and 2,699 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: September 19, 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
Custom window builders by geography
- Custom window builders based in Calgary, Canada
- Custom window builders based in Mississauga, Canada
- Custom window builders based in Toronto, Canada
- Custom window builders based in Vaughan, Canada
- Custom window builders based in Mumbai, India
- Custom window builders based in Dallas, United States
- Custom window builders based in Houston, United States
- Custom window builders based in Miami, United States
- Custom window builders based in New York, United States
- Custom window builders based in Argentina
- Custom window builders based in Australia
- Custom window builders based in Austria
Cite this list
RevenueBase Data Team. Top 25 custom window builders based in the United Kingdom. Snapshot: September 19, 2026. https://revenuebase.ai/companies/custom-window-builders/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
- Custom window builders based in Calgary, Canada
- Custom window builders based in Mississauga, Canada
- Custom window builders based in Toronto, Canada
- Custom window builders based in Vaughan, Canada
- Custom window builders based in Mumbai, India
- Custom window builders based in Dallas, United States
Company intelligence · public preview
Top 25 custom window builders based in the United Kingdom
RevenueBase records 1,390 matching company records for custom window builders based in the United Kingdom, with 9,108 tracked contacts and 2,699 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: September 19, 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 custom window builders 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 | 248 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 · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Nordan UK LTDnordan.co.uk HQ: Livingston, United KingdomReported employees: 51-200 | Livingston, United Kingdom | 51-200 | Exact match | 154 contacts → |
“NorDan is one of Europe’s leading manufacturers of high performance windows, doors and smart accessories.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | CR Smithcrsmith.co.uk HQ: Dunfermline, United KingdomReported employees: 201-500 | Dunfermline, United Kingdom | 201-500 | Exact match | 150 contacts → |
“With the vision of our Chairman, Gerard Eadie CBE, CR Smith has grown over the past 50 years to become Scotland’s leading home improvement company.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Press Glass UKpressglass.co.uk HQ: Swansea, United KingdomReported employees: 1,001-5,000 | Swansea, United Kingdom | 1,001-5,000 | Exact match | 132 contacts → |
“PRESS GLASS WE ARE HERE TO MAKE A DIFFERENCE.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Nationwide Windows And Doorsnwd.co.uk HQ: Rugby, United KingdomReported employees: 501-1,000 | Rugby, United Kingdom | 501-1,000 | Exact match | 126 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 · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Emplas Window Systemsemplas.co.uk HQ: Wellingborough, United KingdomReported employees: 201-500 | Wellingborough, United Kingdom | 201-500 | Exact match | 117 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 · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Aluk GBaluk.co.uk HQ: Chepstow, United KingdomReported employees: 201-500 | Chepstow, United Kingdom | 201-500 | Exact match | 98 contacts → |
“For more than 40 years across the world, AluK has been at the forefront of the design of aluminium curtain walling, window and door systems, combining unique and innovative…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | KAT UK Macclesfieldkatuk.co.uk HQ: Macclesfield, United KingdomReported employees: 51-200 | Macclesfield, United Kingdom | 51-200 | Exact match | 82 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 · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | CSJcsj.co.uk HQ: Falkirk, United KingdomReported employees: 51-200 | Falkirk, United Kingdom | 51-200 | Exact match | 81 contacts → |
“CSJ are providers of bespoke solutions to complement any home.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | SIDEYsidey.co.uk HQ: Perth, United KingdomReported employees: 51-200 | Perth, United Kingdom | 51-200 | Exact match | 76 contacts → |
“Since our foundation in 1932, Sidey’s programme of sustainable and controlled growth has resulted in the company becoming one of the most successful and sustainable window and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Schüco UK And Irelandschueco.co.uk HQ: Milton Keynes, United KingdomReported employees: 51-200 | Milton Keynes, United Kingdom | 51-200 | Exact match | 71 contacts → |
“With over 30 years of experience, Schüco UK Ltd is a leading building envelope specialist supplying high-quality system solutions in aluminium and steel for windows, doors…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Unique Window Systems LTDuws.co.uk HQ: Leicester, United KingdomReported employees: 201-500 | Leicester, United Kingdom | 201-500 | Exact match | 71 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 · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Crittall Windows LTDcrittall-windows.co.uk HQ: Witham, United KingdomReported employees: 201-500 | Witham, United Kingdom | 201-500 | Exact match | 69 contacts → |
“Founded in the 1800's, CRITTALL WINDOWS Ltd was the pioneer of hot-rolled steel windows and was responsible for setting up the first steel window manufacturing plants in the…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Polyframepolyframe.co.uk HQ: Lenwade, United KingdomReported employees: 201-500 | Lenwade, United Kingdom | 201-500 | Exact match | 66 contacts → |
“Polyframe are a multi award-winning manufacturer of high quality windows, doors and conservatories.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | VBH GBvbhgb.com HQ: Gillingham, United KingdomReported employees: 51-200 | Gillingham, United Kingdom | 51-200 | Exact match | 62 contacts → |
“VBH is the largest company in the hardware sector.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Glazerite UK Group LTDglazeritewindows.co.uk HQ: Wellingborough, United KingdomReported employees: 201-500 | Wellingborough, United Kingdom | 201-500 | Exact match | 61 contacts → |
“Glazerite UK Group is a leading trade fabricator offering installers access to one of the most comprehensive product ranges in the industry.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Senior Architectural Systemsseniorarchitectural.co.uk HQ: Doncaster, United KingdomReported employees: 51-200 | Doncaster, United Kingdom | 51-200 | Exact match | 60 contacts → |
“Senior Architectural Systems (Senior) is one of the UK's leading manufacturers of aluminium fenestration solutions.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | JPJ Installations LTDjpjltd.co.uk HQ: Braintree, United KingdomReported employees: 51-200 | Braintree, United Kingdom | 51-200 | Exact match | 57 contacts → |
“JPJ Installations Ltd are specialists in Aluminium Glazing Systems including Curtain Wall, Framing, Door and Window Systems.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Express Bi-Folding Doorsexpressbifolds.co.uk HQ: Leeds, United KingdomReported employees: 201-500 | Leeds, United Kingdom | 201-500 | Exact match | 56 contacts → |
“Express Bi Folding Doors are the UK's leading manufacturer & installer of bespoke aluminium products.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Fleetwood Architectural Aluminium LTDfaa-group.co.uk HQ: Slough, United KingdomReported employees: 51-200 | Slough, United Kingdom | 51-200 | Exact match | 56 contacts → |
“Fleetwood Architectural Aluminium (FAA) is one of the UK’s leading designers, manufacturers and installers of aluminium curtain walling, facades, windows and doors.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | CWG Choices Limitedcwgchoices.com HQ: Corby, United KingdomReported employees: 201-500 | Corby, United Kingdom | 201-500 | Exact match | 50 contacts → |
“CWG Choices Ltd is a double glazing supplier of windows, doors, conservatories and garden studios/offices.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Modplan Limitedmodplan.co.uk HQ: Gwent, United KingdomReported employees: 51-200 | Gwent, United Kingdom | 51-200 | Exact match | 47 contacts → |
“Our business is to support your business Modplan is a trade-only fabricator.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Munster Joinery U.Kmunsterjoinery.co.uk HQ: Warwick, United KingdomReported employees: 1,001-5,000 | Warwick, United Kingdom | 1,001-5,000 | Exact match | 45 contacts → |
“For 50 years in business, Munster Joinery is now among Europe's largest manufacturers of energy-efficient windows and doors.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Vision Archvisionarch.co.uk HQ: Cambridge, United KingdomReported employees: 11-50 | Cambridge, United Kingdom | 11-50 | Exact match | 44 contacts → |
“Vision Arch has been designing and installing high-quality bespoke architectural facades, roof glazing, and glass atria for over 26 years now, mainly within the commercial sector.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Crystal Windows And Doors LTDcrystalwindows.co.uk HQ: Romford, United KingdomReported employees: 201-500 | Romford, United Kingdom | 201-500 | Exact match | 43 contacts → |
“Crystal® was started in 1995 to offer a fair and honest service to customers wanting replacement windows and doors.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Custom window builders: dataset insights
September 19, 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
1,359 records in the displayed employee bands.
31 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 1,390 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: September 19, 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 ↗
Questions about this company list
What does Exact match mean for custom window builders?
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 custom window builders did RevenueBase find based in the United Kingdom?
The saved snapshot records 1,390 matching company records, 9,108 tracked contacts and 2,699 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: September 19, 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.
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Cite this list
RevenueBase Data Team. Top 25 custom window builders based in the United Kingdom. Snapshot: September 19, 2026. https://revenuebase.ai/companies/custom-window-builders/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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