Company lists · Data refreshed September 2026
Top 25 Roofing and window companies based in the United Kingdom
RevenueBase identified 2,199 roofing and window companies headquartered in the United Kingdom as of September 2026 and tracks 12,585 professional contacts across them, including 3,260 with verified work emails. London is the largest hub.
This list covers roofing and window companies headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 roofing and window companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,448 contacts → | ||||
Indirect evidence “BMI Group was born out of the recognition that customers now expect a single point of expertise to help them find their ideal roof.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 254 contacts → | ||||
Indirect evidence “Everest began life in 1965 and has grown into one of the most recognised and respected home improvement companies in the UK.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 249 contacts → | ||||
Partial evidence “SIG Roofing has everything you need under one roof.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 248 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 196 contacts → | ||||
Indirect evidence “Breyer is one of the leading property services providers in the South and South East, with over 60 years of experience within the public sector.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 172 contacts → | ||||
Indirect evidence “CA Group is the UK's largest manufacturer and contractor of built-up building envelope systems.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 157 contacts → | ||||
Partial evidence “Our Mission is to carry out Roofing and Waterproofing contracts, using the best and technically most appropriate products in order to give our customers the best value in…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 125 contacts → | ||||
Indirect evidence “Avonside Group is one of the largest service providers in the UK housing industry, installing over roofs a year, operating from 48 branches across the country.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 117 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 81 contacts → | ||||
Indirect evidence “CSJ are providers of bespoke solutions to complement any home.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 80 contacts → | ||||
Partial evidence “Are a national roofing, cladding and building envelope contractor specialising in Projects, Maintenance and Management.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 80 contacts → | ||||
Partial evidence “Kynaston Contract Services Limited, KCS, provides the full external envelope ie roofing, cladding, curtain walling, glazing on buildings such as the following: Industrial units…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 73 contacts → | ||||
Indirect evidence “Amber Construction Services Ltd are a family run, award-winning trusted construction delivery partner operating across London and the South East.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 72 contacts → | ||||
Partial evidence “M&J Group are one of the largest specialist construction companies in the UK, having developed our extensive knowledge of the flat roofing industry into total building envelope…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 66 contacts → | ||||
Partial evidence “Central Group is a specialist roofing, cladding and building envelope contractor with over 40 years experience delivering complex projects across the UK.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 66 contacts → | ||||
Partial evidence “Polyframe are a multi award-winning manufacturer of high quality windows, doors and conservatories.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 59 contacts → | ||||
Partial evidence “Listers manufacture Sheerline Aluminium, Veka Halo, Eurocell & Residence PVCu windows, doors and conservatories, as well as Elitis, Gallery 44 and Timeless brands (among many…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 55 contacts → | ||||
Partial evidence “Richardson Projects offers a diverse spectrum of Roofing, Cladding and building solutions tailored to each contract type.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 51 contacts → | ||||
Indirect evidence “UKWS Limited commenced trading in 1986, as a leading specialist in the water linings sector.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 48 contacts → | ||||
Partial evidence “Roofdec was established in 1971 and therefore in 2016 celebrates 45 years in business, an achievement few in either the roofing and cladding or the building industry in general…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 44 contacts → | ||||
Indirect evidence “Construction News Specialist Contractor of the Year 2026.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 42 contacts → | ||||
Partial evidence “As the south west’s leading roofing and cladding contractor, our experienced in-house design capability provides a huge competitive advantage.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 42 contacts → | ||||
Partial evidence “Sovereign Group are manufactures and installers of UPVC windows and doors, aluminium windows, doors and composite doors.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 42 contacts → | ||||
Partial evidence “CRS is a leading roofing and cladding specialist working with commercial, industrial and public sector clients across the UK.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 41 contacts → | ||||
Partial evidence “Aspect Group Services has its roots in 1972 when it began trading as a Roofing Contractor from premises in Watton, Norfolk.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: roofing and window companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names roofing and window companies.
- Partial evidence
- Its own public description names part of roofing and window companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name roofing and window companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 2,199 roofing and window companies based in the United Kingdom
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Roofing and window companies based in the United Kingdom at a glance
As of Sep 21, 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 2,199 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among roofing and window companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United Kingdom whose own description of what they do matches “roofing and window companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names roofing and window companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among roofing and window companies, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 3,260 across the full list. 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 21, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Roofing and window companies by metro
- Roofing and window companies in London97
- Roofing and window companies in Glasgow30
- Roofing and window companies in Birmingham26
- Roofing and window companies in Leeds26
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names roofing and window companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many roofing and window companies are there based in the United Kingdom?
RevenueBase identified 2,199 roofing and window companies headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
BMI Group, headquartered in Reading, tops this list with the largest team on record.
Which city has the most roofing and window companies?
London leads with 97 headquartered companies, followed by Glasgow (30) and Birmingham (26).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 3,260 verified decision-maker contacts tracked across these 2,199 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 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 Smart Search, 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.
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