Company lists · Data refreshed October 2026

Top 25 Energy-efficient window and door manufacturers based in the United Kingdom

Name: Energy-efficient window and door manufacturers based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 808 companies tracked

RevenueBase identified 808 company matches for energy-efficient window and door manufacturers associated with the United Kingdom as of October 2026 and tracks 5,674 professional contacts across them, including 1,429 with verified work emails. London is the largest hub.

This list covers company matches for energy-efficient window and door manufacturers associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 12, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Oct 12, 2026 How this list was built

808Companies

5,674Contacts tracked

1,429Verified emails

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The 25 largest energy-efficient window and door manufacturers based in the United Kingdom

Ranked by team size

Top 25 of 808 company matches for energy-efficient window and door manufacturers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	First Home Improvements	Exact match	Norwich, United KingdomHQ recorded Oct 12, 2026	201-500	230 contacts →
	Exact match “First Home Improvements traces its roots to the 1970's and prides itself on installing highly innovative A rated energy saving products unrivaled by many others within our…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2	Nordan UK LTD	Exact match	Livingston, United KingdomHQ recorded Oct 12, 2026	51-200	152 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 · Oct 12, 2026 · View company records in RevenueBase
3	Nationwide Windows And Doors	Exact match	Rugby, United KingdomHQ recorded Oct 12, 2026	501-1,000	135 contacts →
	Exact match “Manufacturers and Installers of PVCu Windows and Doors,Composite and Fire Doors and Conservatories to the Retail, Trade and Commercial Sector.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4	Emplas Window Systems	Exact match	Wellingborough, United KingdomHQ recorded Oct 12, 2026	201-500	114 contacts →
	Exact match “Emplas is the window and door fabricator of choice, offering a complete range of premium-quality, high-security, energy-efficient windows and doors for the trade installer, new…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5	KAT UK Macclesfield	Exact match	Macclesfield, United KingdomHQ recorded Oct 12, 2026	51-200	83 contacts →
	Exact match “KAT UK is a Macclesfield based manufacturer of specialist glazing products, including Aluminium and PVCu bifold doors, sliding patio doors, entrance doors, French doors, windows…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6	Unique Window Systems LTD	Exact match	Leicester, United KingdomHQ recorded Oct 12, 2026	201-500	72 contacts →
	Exact match “An award-winning designer, fabricator and installer of UPVC and aluminium windows, doors and curtain walling, Unique Window Systems Ltd specialises in the supply of quality…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7	Polyframe	Exact match	Lenwade, United KingdomHQ recorded Oct 12, 2026	201-500	72 contacts →
	Exact match “Polyframe are a multi award-winning manufacturer of high quality windows, doors and conservatories.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8	VBH GB	Exact match	Gillingham, United KingdomHQ recorded Oct 12, 2026	51-200	69 contacts →
	Exact match “VBH is the largest company in the hardware sector.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9	Senior Architectural Systems	Exact match	Doncaster, United KingdomHQ recorded Oct 12, 2026	51-200	66 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 · Oct 12, 2026 · View company records in RevenueBase
10	Window Supply Company	Exact match	Whitburn, United KingdomHQ recorded Oct 12, 2026	51-200	60 contacts →
	Exact match “Window Supply Company is a leading UK manufacturer of uPVC windows, doors, and composite doors.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11	CWG Choices Limited	Exact match	Corby, United KingdomHQ recorded Oct 12, 2026	201-500	51 contacts →
	Exact match “CWG Choices Ltd is a double glazing supplier of windows, doors, conservatories and garden studios/offices.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12	Munster Joinery U.K	Exact match	Warwick, United KingdomHQ recorded Oct 12, 2026	1,001-5,000	47 contacts →
	Exact match “For 50 years in business, Munster Joinery is now among Europe's largest manufacturers of energy-efficient windows and doors.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13	Dekko Window Systems LTD	Exact match	Ashton-under-lyne, United KingdomHQ recorded Oct 12, 2026	51-200	44 contacts →
	Exact match “DEKKO WINDOW SYSTEMS LIMITED Manufacturers of a wide range of glazing products for professional installation companies.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14	Russell Timber Technology	Exact match	Glasgow, United KingdomHQ recorded Oct 12, 2026	51-200	43 contacts →
	Exact match “For over 55 years, Russell Timber Technology has been the UK’s leading manufacturer of energy efficient, sustainable, precision-engineered Timber and Alu-Clad windows, doors and…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15	Euramax Solutions Limited	Exact match	Barnsley, United KingdomHQ recorded Oct 12, 2026	n/a	43 contacts →
	Exact match “Euramax is a leading manufacturer of uPVC windows, doors and composite doors for the modular, portable and offsite construction industry, also supplying to national builders’…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16	Granada Glazing	Exact match	Sheffield, United KingdomHQ recorded Oct 12, 2026	51-200	41 contacts →
	Exact match “Granada Glazing is the UK’s leading manufacturer of premium bespoke secondary glazing systems, trusted for over 45 years by architects, developers, contractors and property…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17	Dempsey Dyer LTD	Exact match	Pontefract, United KingdomHQ recorded Oct 12, 2026	51-200	40 contacts →
	Exact match “Dempsey Dyer are UK based manufacturers of window, door and conservatory products in upvc, timber and composite materials.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18	Coral Windows Bradford Limited	Exact match	Bradford, United KingdomHQ recorded Oct 12, 2026	51-200	39 contacts →
	Exact match “Coral Windows are a family run business who have had over 33 years experience within the home improvement industry.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19	Joedan Windows & Doors	Exact match	Tewkesbury, United KingdomHQ recorded Oct 12, 2026	201-500	38 contacts →
	Exact match “At Joedan, we are a family run business with Retail Design Centres across the Midlands and Southern England; to include a Manufacturing Facility and a Commercial Division.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20	Hazlemere Group	Exact match	High Wycombe, United KingdomHQ recorded Oct 12, 2026	51-200	37 contacts →
	Exact match “Hazlemere is a family owned and run double glazing manufacturer and installer based in High Wycombe, Buckinghamshire.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21	Mumford & Wood LTD	Exact match	Tiptree, United KingdomHQ recorded Oct 12, 2026	51-200	36 contacts →
	Exact match “Timber Windows and Doors Established in 1954 Mumford & Wood has since become the UK’s premier manufacturer of high quality timber windows and doors.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22	George Barnsdale	Exact match	Spalding, United KingdomHQ recorded Oct 12, 2026	51-200	33 contacts →
	Exact match “At George Barnsdale, we have been making premium quality timber windows & doors in our Lincolnshire based factory since 1884.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23	Chigwell Window Centre PLC	Exact match	Forest Rd, United KingdomHQ recorded Oct 12, 2026	51-200	32 contacts →
	Exact match “Established in 1996, Chigwell Window Centre PLC (part of Chigwell Group PLC) manufactures, supplies and installs aluminium and uPVC doors and windows for domestic, commercial and…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24	Cotswold Architectural Products	Exact match	Cheltenham, United KingdomHQ recorded Oct 12, 2026	501-1,000	31 contacts →
	Exact match “Cotswold Architectural Products has been synonymous with excellence in the fenestration industry since 1976, when we became the first company in the UK to manufacture friction…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25	Sevenday Windows	Exact match	Lenwade Norwich, United KingdomHQ recorded Oct 12, 2026	51-200	30 contacts →
	Exact match “Sevenday Windows is a nationwide network of trade counters serving the professional installer, builder and general home improver.” Recorded in the RevenueBase company graph · Oct 12, 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 and door manufacturers”. 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 808 energy-efficient window and door manufacturers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,429 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Energy-efficient window and door manufacturers based in the United Kingdom at a glance

As of Oct 12, 2026

25.2%Verified-email coverage

7.0Average contacts per company

11-50Median size (employees)

6.1%Largest-city concentration · London

Oct 12, 2026Page data refreshed

Companies by employee count

1-10

392

11-50

266

51-200

100

201-500

501-1,000

1,001-5,000

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 808 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 and door manufacturers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 1,429 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on October 12, 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.

Energy-efficient window and door manufacturers by metro

Energy-efficient window and door manufacturers in London49

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 and door manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many energy-efficient window and door manufacturers are there based in the United Kingdom?

RevenueBase identified 808 company matches for energy-efficient window and door manufacturers associated with the United Kingdom as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

First Home Improvements tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most energy-efficient window and door manufacturers?

London leads with 49 company records, followed by Glasgow (16) and Norwich (15).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,429 professional contacts with verified work emails tracked across these 808 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 12, 2026.

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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.