Company lists · Data refreshed November 2026

Top 25 Wall insulation contractors based in the United Kingdom

RevenueBase identified 498 company matches for wall insulation contractors associated with the United Kingdom as of November 2026 and tracks 2,844 professional contacts across them, including 893 with verified work emails. London is the largest hub.

This list covers company matches for wall insulation 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 November 6, 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 Nov 6, 2026 How this list was built
498Companies
2,844Contacts tracked
893Verified emails
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The 25 largest wall insulation contractors based in the United Kingdom

Ranked by team size
Top 25 of 498 company matches for wall insulation contractors based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchFinchampstead, United KingdomHQ recorded Nov 6, 202651-20099 contacts →

Exact match

“Established in 1980, InstaGroup are a UK leader in the energy efficiency industry, covering commercial and residential projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLeeds, United KingdomHQ recorded Nov 6, 202651-20078 contacts →

Exact match

“Belgrade Insulation is a privately owned Specialist Distributor of Insulation and Drywall Systems to all sectors of the construction market.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchRainford, United KingdomHQ recorded Nov 6, 202651-20070 contacts →

Exact match

“We are one of the UK's largest providers of insulation services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchLeicester, United KingdomHQ recorded Nov 6, 2026201-50060 contacts →

Exact match

“Max Energy Ltd is a UK based new build construction company specialising in the sale of insulation to the new build housing sector on a supply and install basis.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchDartford, United KingdomHQ recorded Nov 6, 202651-20048 contacts →

Exact match

“Essex Thermal Services Ltd are a UK based company specialising in Thermal Insulation, Trace Heating, Ventilation and Air Conditioning Installs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchBrighouse, United KingdomHQ recorded Nov 6, 20261,001-5,00045 contacts →

Exact match

“Sureserve Energy Services North is a leading national installer of insulation, heating solutions and renewable technologies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchLeighton Buzzard, United KingdomHQ recorded Nov 6, 202651-20044 contacts →

Exact match

“The Installation Assurance Authority (IAA) is the industry body that provides a quality assurance framework covering consumer protection, technical guidance, Certification…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSouthampton, United KingdomHQ recorded Nov 6, 202651-20038 contacts →

Exact match

“Homelogic®, based in Southampton, Hampshire, are an innovative, forward-thinking company dedicated to bringing eco-friendly, cost effective energy saving solutions to the homes…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchRearsby, United KingdomHQ recorded Nov 6, 2026201-50037 contacts →

Exact match

“Avonside Energy: Your Partner in Sustainable Building Solutions At Avonside Energy, we are dedicated to delivering best-in-class services across: New Build Insulation…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchGateshead, United KingdomHQ recorded Nov 6, 202651-20035 contacts →

Exact match

“Thrift Energy is as a leading installer of Insulation, Heating, Electrical and Renewable Energy technologies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchStevenage, United KingdomHQ recorded Nov 6, 202611-5034 contacts →

Exact match

“CWG Group is your dedicated partner in creating energy-efficient, sustainable, and environmentally responsible solutions that stand the test of time.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchRochester, United KingdomHQ recorded Nov 6, 202651-20032 contacts →

Exact match

“The UK's no.1 manufacturer of eco friendly acoustic treatments and specialist insulation products.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchMilton Keynes, United KingdomHQ recorded Nov 6, 202611-5032 contacts →

Exact match

“Soltherm are producers of the highest quality EWI system in the world and our mission is to supply these building materials and solutions to the British market.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchNorth Shields, United KingdomHQ recorded Nov 6, 202651-20031 contacts →

Exact match

“We focus on making reliable panels and supporting you at every stage.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchChippenham, United KingdomHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“ACTIS is an innovative European insulation specialist whose vision is to develop effective and environmentally friendly ways of reducing energy consumption.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAylesbury, United KingdomHQ recorded Nov 6, 202651-20024 contacts →

Exact match

“EWI Pro external wall insulation systems are BBA-approved and built to last.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchSt Asaph, United KingdomHQ recorded Nov 6, 202651-20023 contacts →

Exact match

“At Eco 247, we are committed to building a greener future through sustainable energy solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchCreswell, United KingdomHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“YBS Insulation has grown steadily over the years from a one man operation producing one product in 1994 to the large manufacturing and distribution company it is today with an…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchLoughborough, United KingdomHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“Permarock is a leading designer, manufacturer and supplier of external wall insulation, solid wall insulation and exterior render systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBirmingham, United KingdomHQ recorded Nov 6, 202651-20020 contacts →

Exact match

“We are a specialist system designer & distributor of the following services to the retrofit market: • Internal Wall Insulation (IWI) • Loft Storage Solution (LSS) • Room In Roof…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchHarold Wood, United KingdomHQ recorded Nov 6, 202651-20019 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 · Nov 6, 2026 · View company records in RevenueBase
22Exact matchGlasgow, United KingdomHQ recorded Nov 6, 202651-20018 contacts →

Exact match

“Skyform Group is a multi-disciplined company providing access, construction, insulation and energy efficiency solutions throughout the UK to various market sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchCrawley, United KingdomHQ recorded Nov 6, 202651-20017 contacts →

Exact match

“Established in 1989 as an insulation converter.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchWakefield, United KingdomHQ recorded Nov 6, 202651-20015 contacts →

Exact match

“Novora Building Services provides a dedicated national service across the UK from a regional branch network centrally controlled from our head office in Yorkshire.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchDoncaster, United KingdomHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“We are a highly skilled, independent installation company based in Doncaster, South Yorkshire.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 498 wall insulation contractors based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 893 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Wall insulation contractors based in the United Kingdom at a glance

As of Nov 6, 2026
31.4%Verified-email coverage
5.7Average contacts per company
1-10Median size (employees)
5.4%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
241
11-50
182
51-200
43
201-500
9
501-1,000
1
1,001-5,000
2

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 498 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 “wall insulation 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 893 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 November 6, 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 “wall insulation contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many wall insulation contractors are there based in the United Kingdom?

RevenueBase identified 498 company matches for wall insulation contractors associated with the United Kingdom as of November 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?

Instagroup LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most wall insulation contractors?

London leads with 27 company records, followed by Manchester (12) and Birmingham (10).

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 893 professional contacts with verified work emails tracked across these 498 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 November 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 498 wall insulation contractors based in the United Kingdom. Start with a free account, no credit card.

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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.