Company lists · Data refreshed September 2026
Top 25 Energy efficient window contractors based in the United Kingdom
RevenueBase identified 147 company matches for energy efficient window contractors associated with the United Kingdom as of September 2026 and tracks 565 professional contacts across them, including 115 with verified work emails. London is the largest hub.
This list covers company matches for energy efficient window contractors 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 16, 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 energy efficient window contractors based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 25 contacts → | ||||
Exact match “At Eco 247, we are committed to building a greener future through sustainable energy solutions.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 2 | 18 contacts → | ||||
Exact match “Eco Systems Group has been delivering high-quality insulation, retrofit, solar solutions & air source heat pumps across the commercial and residential sectors for over 13 years.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 3 | 16 contacts → | ||||
Exact match “EcoGiants is a leading UK-based sustainable building retrofit specialist, delivering large-scale energy efficiency solutions for commercial and residential properties.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 4 | 14 contacts → | ||||
Exact match “Since our beginning in 2014, we have completed more than installations.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 5 | 11 contacts → | ||||
Exact match “SRJ Windows has been providing a quality service throughout Scotland since 1992.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 6 | 10 contacts → | ||||
Exact match “We are a highly skilled, independent installation company based in Doncaster, South Yorkshire.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 7 | 10 contacts → | ||||
Exact match “Coactivation Ltd: Solar Panel Installation for Your Home or Business in the East Midlands Are rising energy costs and the need for sustainability driving you to explore solar…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 8 | 10 contacts → | ||||
Exact match “Distinctive by DESIGN.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 9 | 8 contacts → | ||||
Exact match “WELCOME TO THE ENERGY EFFICIENT FUTURE Maximising the use of energy, minimising the overall costs and protecting the environment is at the forefront of business strategies.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 10 | 7 contacts → | ||||
Exact match “Passivlux has been established with the specific purpose of supplying high-quality performance windows and doors to all sectors of the construction industry.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 11 | 6 contacts → | ||||
Exact match “Energy efficiency experts Established in 1989, SGEC is a fully accredited energy efficiency provider and insulation installer based in Telford, Shropshire.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 12 | 6 contacts → | ||||
Exact match “At 1st Homes we believe that our unrivaled years of experience combined with the most up to date technology and the finest products available in the market place today, coupled…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 13 | 5 contacts → | ||||
Exact match “D&M Windows & Doors Ltd is a company based out of United Kingdom.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 14 | 4 contacts → | ||||
Exact match “Benchmark Windows Ltd are a newly founded, forward thinking, customer centric company born from more than fifty years of combined window industry experience.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 15 | 4 contacts → | ||||
Exact match “IGP Solutions are a Window Filming Company who seek professional solutions for all window filming requirements.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 16 | 4 contacts → | ||||
Exact match “We provide quality, energy-efficient windows and doors from well-known trusted brands such as Reynaers, ALUK, Cortizo, Hormann, Schuco, Rockdoor and Sheerline, plus many others.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 17 | 4 contacts → | ||||
Exact match “Homeglaze is a family run company With over 30 years of experience in the window and door Industry.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 18 | 4 contacts → | ||||
Exact match “Cladwinds Limited is a domestic and commercial window & warmer roof construction company based in Kempston, Bedford, United Kingdom.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 19 | 3 contacts → | ||||
Exact match “At Cobalt Carbon Free we design, build, renovate, innovate, and promote energy efficient, low carbon, home improvements and developments to like-minded homeowners.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 20 | 3 contacts → | ||||
Exact match “Cambridge Sashcraft has been sympathetically restoring and upgrading windows in Cambridge’s homes, schools and colleges since 2013.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 21 | 3 contacts → | ||||
Exact match “Established in 1988, Ultimate Window Systems Ltd are proud to have built a reputation for installing only the finest quality products, using fully qualified installers, together…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 22 | 3 contacts → | ||||
Exact match “8220;I have recently had all my windows (and previously front door) replaced by Strata windows.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 23 | 3 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 24 | 3 contacts → | ||||
Exact match “Kishorn Insulations has had to meet the strict quality criteria to become an approved partner of Icynene, and we are proud to have been accepted into the Icynene Family.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 25 | 3 contacts → | ||||
Exact match “Manufacturer of energy efficient windows and doors.” Recorded in the RevenueBase company graph · Sep 16, 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 “energy efficient window contractors”. 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 147 energy efficient window contractors based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 115 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Energy efficient window contractors based in the United Kingdom at a glance
As of Sep 16, 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 147 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 “energy efficient window contractors” 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 115 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 16, 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 “energy efficient window contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many energy efficient window contractors are there based in the United Kingdom?
RevenueBase identified 147 company matches for energy efficient window contractors 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?
ECO 247 tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most energy efficient window contractors?
London leads with 4 company records, followed by Norwich (4) and Bradford (2).
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 115 professional contacts with verified work emails tracked across these 147 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 16, 2026.
Ready to reach these companies? Verified emails and direct dials for all 147 energy efficient window contractors based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Energy efficient window contractors by geography
- Energy efficient window contractors based in Australia
- Energy efficient window contractors based in Belgium
- Energy efficient window contractors based in Canada
- Energy efficient window contractors based in France
- Energy efficient window contractors based in Germany
- Energy efficient window contractors based in Italy
- Energy efficient window contractors based in the Netherlands
- Energy efficient window contractors based in Sweden
- Energy efficient window contractors 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
- Energy efficient window contractors based in Australia
- Energy efficient window contractors based in Belgium
- Energy efficient window contractors based in Canada
- Energy efficient window contractors based in France
- Energy efficient window contractors based in Germany
- Energy efficient window contractors based in Italy
Company intelligence · public preview
Top 25 energy efficient window contractors 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 147 matching company records for energy efficient window contractors based in the United Kingdom, with 565 tracked contacts and 115 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 16, 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 energy efficient window contractors 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 | ECO 247eco24-7.co.uk HQ: St Asaph, United KingdomReported employees: 51-200 | St Asaph, United Kingdom | 51-200 | Exact match | 25 contacts → |
“At Eco 247, we are committed to building a greener future through sustainable energy solutions.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | ECO Systems Group LTDecosystemsgroup.co.uk HQ: Harold Wood, United KingdomReported employees: 51-200 | Harold Wood, United Kingdom | 51-200 | Exact match | 18 contacts → |
“Eco Systems Group has been delivering high-quality insulation, retrofit, solar solutions & air source heat pumps across the commercial and residential sectors for over 13 years.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Ecogiantsecogiants.co.uk HQ: Clitheroe, United KingdomReported employees: 11-50 | Clitheroe, United Kingdom | 11-50 | Exact match | 16 contacts → |
“EcoGiants is a leading UK-based sustainable building retrofit specialist, delivering large-scale energy efficiency solutions for commercial and residential properties.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Senergy Directsenergydirect.co.uk HQ: Basildon, United KingdomReported employees: 11-50 | Basildon, United Kingdom | 11-50 | Exact match | 14 contacts → |
“Since our beginning in 2014, we have completed more than installations.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | SRJ Windowssrjwindows.com HQ: Rosyth, United KingdomReported employees: 51-200 | Rosyth, United Kingdom | 51-200 | Exact match | 11 contacts → |
“SRJ Windows has been providing a quality service throughout Scotland since 1992.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | DJB Installsdjbi.co.uk HQ: Doncaster, United KingdomReported employees: 11-50 | Doncaster, United Kingdom | 11-50 | Exact match | 10 contacts → |
“We are a highly skilled, independent installation company based in Doncaster, South Yorkshire.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Coactivation LTDcoactivation.co.ukHQ: Derby, United KingdomReported employees: 1-10 | Derby, United Kingdom | 1-10 | Exact match | 10 contacts → |
“Coactivation Ltd: Solar Panel Installation for Your Home or Business in the East Midlands Are rising energy costs and the need for sustainability driving you to explore solar…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Ecohaus Windows & Doorsecohausuk.com HQ: Stroud, United KingdomReported employees: 11-50 | Stroud, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Distinctive by DESIGN.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  ATI Insulation Contractors Limitedaticontractors.co.ukHQ: Warrington, United KingdomReported employees: 1-10 | Warrington, United Kingdom | 1-10 | Exact match | 8 contacts → |
“WELCOME TO THE ENERGY EFFICIENT FUTURE Maximising the use of energy, minimising the overall costs and protecting the environment is at the forefront of business strategies.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Passivluxpassivlux.com HQ: Whitstable, United KingdomReported employees: 1-10 | Whitstable, United Kingdom | 1-10 | Exact match | 7 contacts → |
“Passivlux has been established with the specific purpose of supplying high-quality performance windows and doors to all sectors of the construction industry.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Shropshire Green Energy Centre LTDshropshiregreenenergycentre.co.uk HQ: Telford, United KingdomReported employees: 11-50 | Telford, United Kingdom | 11-50 | Exact match | 6 contacts → |
“Energy efficiency experts Established in 1989, SGEC is a fully accredited energy efficiency provider and insulation installer based in Telford, Shropshire.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | 1st Homes1sthomes.co.uk HQ: Colchester, United KingdomReported employees: 1-10 | Colchester, United Kingdom | 1-10 | Exact match | 6 contacts → |
“At 1st Homes we believe that our unrivaled years of experience combined with the most up to date technology and the finest products available in the market place today, coupled…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | D&m Windows & Doors LTDdandmwindowsanddoors.co.uk HQ: Oldham, United KingdomReported employees: 11-50 | Oldham, United Kingdom | 11-50 | Exact match | 5 contacts → |
“D&M Windows & Doors Ltd is a company based out of United Kingdom.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Benchmark Windows LTDbenchmarkwindows.co.uk HQ: Lancing, United KingdomReported employees: 1-10 | Lancing, United Kingdom | 1-10 | Exact match | 4 contacts → |
“Benchmark Windows Ltd are a newly founded, forward thinking, customer centric company born from more than fifty years of combined window industry experience.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | IGP Solutions LTDigpsolutions.com HQ: High Wycombe, United KingdomReported employees: 11-50 | High Wycombe, United Kingdom | 11-50 | Exact match | 4 contacts → |
“IGP Solutions are a Window Filming Company who seek professional solutions for all window filming requirements.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Bedford Bi-Folds LTDbedfordbifolds.co.uk HQ: Bedford, United KingdomReported employees: 1-10 | Bedford, United Kingdom | 1-10 | Exact match | 4 contacts → |
“We provide quality, energy-efficient windows and doors from well-known trusted brands such as Reynaers, ALUK, Cortizo, Hormann, Schuco, Rockdoor and Sheerline, plus many others.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Homeglaze Home Improvementshomeglaze.co.uk HQ: Chigwell, United KingdomReported employees: 11-50 | Chigwell, United Kingdom | 11-50 | Exact match | 4 contacts → |
“Homeglaze is a family run company With over 30 years of experience in the window and door Industry.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Cladwinds Limitedcladwinds.com HQ: Bedford, United KingdomReported employees: 11-50 | Bedford, United Kingdom | 11-50 | Exact match | 4 contacts → |
“Cladwinds Limited is a domestic and commercial window & warmer roof construction company based in Kempston, Bedford, United Kingdom.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Cobalt Carbon Freecobaltcarbonfree.co.uk HQ: Nottingham, United KingdomReported employees: 11-50 | Nottingham, United Kingdom | 11-50 | Exact match | 3 contacts → |
“At Cobalt Carbon Free we design, build, renovate, innovate, and promote energy efficient, low carbon, home improvements and developments to like-minded homeowners.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Cambridge Sashcraftcambridgesashcraft.co.uk HQ: Cambridge, United KingdomReported employees: 11-50 | Cambridge, United Kingdom | 11-50 | Exact match | 3 contacts → |
“Cambridge Sashcraft has been sympathetically restoring and upgrading windows in Cambridge’s homes, schools and colleges since 2013.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Ultimate Window Systems LTDultwindows.co.uk HQ: Ammanford, United KingdomReported employees: 11-50 | Ammanford, United Kingdom | 11-50 | Exact match | 3 contacts → |
“Established in 1988, Ultimate Window Systems Ltd are proud to have built a reputation for installing only the finest quality products, using fully qualified installers, together…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Strata Windowsstratawindows.co.uk HQ: Stoke-On-Trent, United KingdomReported employees: 11-50 | Stoke-On-Trent, United Kingdom | 11-50 | Exact match | 3 contacts → |
“8220;I have recently had all my windows (and previously front door) replaced by Strata windows.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Renewable Green Homesrenewablegreenhomes.com HQ: Cardiff, United KingdomReported employees: 1-10 | Cardiff, United Kingdom | 1-10 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 24 | Kishorn Insulations Limitedkishornltd.co.uk HQ: Kishorn, United KingdomReported employees: 11-50 | Kishorn, United Kingdom | 11-50 | Exact match | 3 contacts → |
“Kishorn Insulations has had to meet the strict quality criteria to become an approved partner of Icynene, and we are proud to have been accepted into the Icynene Family.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | ECO Save Windowsecosavewindows.co.uk HQ: Clydebank, United KingdomReported employees: 1-10 | Clydebank, United Kingdom | 1-10 | Exact match | 3 contacts → |
“Manufacturer of energy efficient windows and doors.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 147 company matches
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Energy efficient window contractors: dataset insights
September 16, 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
145 records in the displayed employee bands.
2 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 147 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 16, 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 energy efficient window contractors?
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 energy efficient window contractors did RevenueBase find based in the United Kingdom?
The saved snapshot records 147 matching company records, 565 tracked contacts and 115 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 16, 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
Energy efficient window contractors by geography
- Energy efficient window contractors based in Australia
- Energy efficient window contractors based in Belgium
- Energy efficient window contractors based in Canada
- Energy efficient window contractors based in France
- Energy efficient window contractors based in Germany
- Energy efficient window contractors based in Italy
- Energy efficient window contractors based in the Netherlands
- Energy efficient window contractors based in Sweden
- Energy efficient window contractors based in the United States
Cite this list
RevenueBase Data Team. Top 25 energy efficient window contractors based in the United Kingdom. Snapshot: September 16, 2026. https://revenuebase.ai/companies/energy-efficient-window-contractors/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
- Energy efficient window contractors based in Australia
- Energy efficient window contractors based in Belgium
- Energy efficient window contractors based in Canada
- Energy efficient window contractors based in France
- Energy efficient window contractors based in Germany
- Energy efficient window contractors based in Italy
Company intelligence · public preview
Top 25 energy efficient window contractors based in the United Kingdom
RevenueBase records 147 matching company records for energy efficient window contractors based in the United Kingdom, with 565 tracked contacts and 115 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 16, 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 energy efficient window contractors 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 | ECO 247eco24-7.co.uk HQ: St Asaph, United KingdomReported employees: 51-200 | St Asaph, United Kingdom | 51-200 | Exact match | 25 contacts → |
“At Eco 247, we are committed to building a greener future through sustainable energy solutions.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | ECO Systems Group LTDecosystemsgroup.co.uk HQ: Harold Wood, United KingdomReported employees: 51-200 | Harold Wood, United Kingdom | 51-200 | Exact match | 18 contacts → |
“Eco Systems Group has been delivering high-quality insulation, retrofit, solar solutions & air source heat pumps across the commercial and residential sectors for over 13 years.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Ecogiantsecogiants.co.uk HQ: Clitheroe, United KingdomReported employees: 11-50 | Clitheroe, United Kingdom | 11-50 | Exact match | 16 contacts → |
“EcoGiants is a leading UK-based sustainable building retrofit specialist, delivering large-scale energy efficiency solutions for commercial and residential properties.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Senergy Directsenergydirect.co.uk HQ: Basildon, United KingdomReported employees: 11-50 | Basildon, United Kingdom | 11-50 | Exact match | 14 contacts → |
“Since our beginning in 2014, we have completed more than installations.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | SRJ Windowssrjwindows.com HQ: Rosyth, United KingdomReported employees: 51-200 | Rosyth, United Kingdom | 51-200 | Exact match | 11 contacts → |
“SRJ Windows has been providing a quality service throughout Scotland since 1992.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | DJB Installsdjbi.co.uk HQ: Doncaster, United KingdomReported employees: 11-50 | Doncaster, United Kingdom | 11-50 | Exact match | 10 contacts → |
“We are a highly skilled, independent installation company based in Doncaster, South Yorkshire.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Coactivation LTDcoactivation.co.uk HQ: Derby, United KingdomReported employees: 1-10 | Derby, United Kingdom | 1-10 | Exact match | 10 contacts → |
“Coactivation Ltd: Solar Panel Installation for Your Home or Business in the East Midlands Are rising energy costs and the need for sustainability driving you to explore solar…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Ecohaus Windows & Doorsecohausuk.com HQ: Stroud, United KingdomReported employees: 11-50 | Stroud, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Distinctive by DESIGN.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | ATI Insulation Contractors Limitedaticontractors.co.uk HQ: Warrington, United KingdomReported employees: 1-10 | Warrington, United Kingdom | 1-10 | Exact match | 8 contacts → |
“WELCOME TO THE ENERGY EFFICIENT FUTURE Maximising the use of energy, minimising the overall costs and protecting the environment is at the forefront of business strategies.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Passivluxpassivlux.com HQ: Whitstable, United KingdomReported employees: 1-10 | Whitstable, United Kingdom | 1-10 | Exact match | 7 contacts → |
“Passivlux has been established with the specific purpose of supplying high-quality performance windows and doors to all sectors of the construction industry.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Shropshire Green Energy Centre LTDshropshiregreenenergycentre.co.uk HQ: Telford, United KingdomReported employees: 11-50 | Telford, United Kingdom | 11-50 | Exact match | 6 contacts → |
“Energy efficiency experts Established in 1989, SGEC is a fully accredited energy efficiency provider and insulation installer based in Telford, Shropshire.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | 1st Homes1sthomes.co.uk HQ: Colchester, United KingdomReported employees: 1-10 | Colchester, United Kingdom | 1-10 | Exact match | 6 contacts → |
“At 1st Homes we believe that our unrivaled years of experience combined with the most up to date technology and the finest products available in the market place today, coupled…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | D&m Windows & Doors LTDdandmwindowsanddoors.co.uk HQ: Oldham, United KingdomReported employees: 11-50 | Oldham, United Kingdom | 11-50 | Exact match | 5 contacts → |
“D&M Windows & Doors Ltd is a company based out of United Kingdom.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Benchmark Windows LTDbenchmarkwindows.co.uk HQ: Lancing, United KingdomReported employees: 1-10 | Lancing, United Kingdom | 1-10 | Exact match | 4 contacts → |
“Benchmark Windows Ltd are a newly founded, forward thinking, customer centric company born from more than fifty years of combined window industry experience.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | IGP Solutions LTDigpsolutions.com HQ: High Wycombe, United KingdomReported employees: 11-50 | High Wycombe, United Kingdom | 11-50 | Exact match | 4 contacts → |
“IGP Solutions are a Window Filming Company who seek professional solutions for all window filming requirements.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Bedford Bi-Folds LTDbedfordbifolds.co.uk HQ: Bedford, United KingdomReported employees: 1-10 | Bedford, United Kingdom | 1-10 | Exact match | 4 contacts → |
“We provide quality, energy-efficient windows and doors from well-known trusted brands such as Reynaers, ALUK, Cortizo, Hormann, Schuco, Rockdoor and Sheerline, plus many others.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Homeglaze Home Improvementshomeglaze.co.uk HQ: Chigwell, United KingdomReported employees: 11-50 | Chigwell, United Kingdom | 11-50 | Exact match | 4 contacts → |
“Homeglaze is a family run company With over 30 years of experience in the window and door Industry.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Cladwinds Limitedcladwinds.com HQ: Bedford, United KingdomReported employees: 11-50 | Bedford, United Kingdom | 11-50 | Exact match | 4 contacts → |
“Cladwinds Limited is a domestic and commercial window & warmer roof construction company based in Kempston, Bedford, United Kingdom.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Cobalt Carbon Freecobaltcarbonfree.co.uk HQ: Nottingham, United KingdomReported employees: 11-50 | Nottingham, United Kingdom | 11-50 | Exact match | 3 contacts → |
“At Cobalt Carbon Free we design, build, renovate, innovate, and promote energy efficient, low carbon, home improvements and developments to like-minded homeowners.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Cambridge Sashcraftcambridgesashcraft.co.uk HQ: Cambridge, United KingdomReported employees: 11-50 | Cambridge, United Kingdom | 11-50 | Exact match | 3 contacts → |
“Cambridge Sashcraft has been sympathetically restoring and upgrading windows in Cambridge’s homes, schools and colleges since 2013.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Ultimate Window Systems LTDultwindows.co.uk HQ: Ammanford, United KingdomReported employees: 11-50 | Ammanford, United Kingdom | 11-50 | Exact match | 3 contacts → |
“Established in 1988, Ultimate Window Systems Ltd are proud to have built a reputation for installing only the finest quality products, using fully qualified installers, together…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Strata Windowsstratawindows.co.uk HQ: Stoke-On-Trent, United KingdomReported employees: 11-50 | Stoke-On-Trent, United Kingdom | 11-50 | Exact match | 3 contacts → |
“8220;I have recently had all my windows (and previously front door) replaced by Strata windows.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Renewable Green Homesrenewablegreenhomes.com HQ: Cardiff, United KingdomReported employees: 1-10 | Cardiff, United Kingdom | 1-10 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 24 | Kishorn Insulations Limitedkishornltd.co.uk HQ: Kishorn, United KingdomReported employees: 11-50 | Kishorn, United Kingdom | 11-50 | Exact match | 3 contacts → |
“Kishorn Insulations has had to meet the strict quality criteria to become an approved partner of Icynene, and we are proud to have been accepted into the Icynene Family.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | ECO Save Windowsecosavewindows.co.uk HQ: Clydebank, United KingdomReported employees: 1-10 | Clydebank, United Kingdom | 1-10 | Exact match | 3 contacts → |
“Manufacturer of energy efficient windows and doors.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 147 company matches
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Energy efficient window contractors: dataset insights
September 16, 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
145 records in the displayed employee bands.
2 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 147 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 16, 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 energy efficient window contractors?
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 energy efficient window contractors did RevenueBase find based in the United Kingdom?
The saved snapshot records 147 matching company records, 565 tracked contacts and 115 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 16, 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 energy efficient window contractors based in the United Kingdom. Snapshot: September 16, 2026. https://revenuebase.ai/companies/energy-efficient-window-contractors/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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