Company lists · Data refreshed November 2026

Top 25 Heating system installers based in the United Kingdom

RevenueBase identified 1,401 company matches for heating system installers associated with the United Kingdom as of November 2026 and tracks 7,206 professional contacts across them, including 1,619 with verified work emails. London is the largest hub.

This list covers company matches for heating system installers 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
1,401Companies
7,206Contacts tracked
1,619Verified emails
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The 25 largest heating system installers based in the United Kingdom

Ranked by team size
Top 25 of 1,401 company matches for heating system installers 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 matchWarwick, United KingdomHQ recorded Nov 6, 20261,001-5,000865 contacts →

Exact match

“We're leading the energy transition to zero carbon, by offering complete residential and commercial heating and hot water solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchBristol, United KingdomHQ recorded Nov 6, 2026201-500325 contacts →

Exact match

“Space Engineering Services is the UK’s leading provider of refrigeration, heating, ventilation and air conditioning services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchSittingbourne, United KingdomHQ recorded Nov 6, 2026201-500153 contacts →

Exact match

“As an established heating company based in Kent, Swale Heating are proud to offer expert guidance in choosing the best heating and boiler systems & products available today.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchUnit 5-6 Boudicca Road, United KingdomHQ recorded Nov 6, 2026501-1,000136 contacts →

Exact match

“With over 40 years of successful delivery experience in the domestic and commercial markets you can trust Sureserve Compliance Central with all your heating needs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchKenley, United KingdomHQ recorded Nov 6, 2026201-500120 contacts →

Exact match

“We are a domestic and commercial heating servicing, maintenance and installations contractor working across the South East.”

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

Exact match

“As the UK's largest supplier of warm water underfloor heating and integrated renewables, Nu‑Heat delivers fully designed, energy efficient systems to installers, housebuilders…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchRomford, United KingdomHQ recorded Nov 6, 202651-20063 contacts →

Exact match

“Aston Group is a leading Building Services and Facilities Maintenance Company for Commercial and Residential clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchGuildford, United KingdomHQ recorded Nov 6, 202651-20062 contacts →

Exact match

“BTU (Installation and Maintenance) Ltd, is a privately owned business based in Guildford, Surrey.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBrookmans Park, United KingdomHQ recorded Nov 6, 202611-5059 contacts →

Exact match

“Leading supplier and installer of underfloor heating for residential developments in the UK.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchMilton Keynes, United KingdomHQ recorded Nov 6, 202611-5042 contacts →

Exact match

“Plumbing & Gas Solutions Ltd are a Constructionline and CHAS accredited Commercial Plumbing & Heating contractor based in Milton Keynes.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBelfast, United KingdomHQ recorded Nov 6, 202651-20040 contacts →

Exact match

“Principal HVAC are at the leading edge of Heating, Ventilation & Air conditioning systems for commercial and residential property.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchOkehampton, United KingdomHQ recorded Nov 6, 202651-20035 contacts →

Exact match

“Established in 1971 as a small family firm, we have grown to become one of the largest and most respected plumbing companies in the UK.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchNorth Shields, United KingdomHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“Professional service supplying, installing and maintaining energy efficient HVAC systems.”

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

Exact match

“M&N Heating & Plumbing is an independent company based in Bloxham on the edge of Banbury, serving Oxfordshire, Northamptonshire, Buckinghamshire and Warwickshire.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSkipton, United KingdomHQ recorded Nov 6, 202651-20030 contacts →

Exact match

“H Clarke & Sons Ltd was first established in 1920 and has grown to become one of the most renowned independent heating and plumbing companies in the region.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchNorthampton, United KingdomHQ recorded Nov 6, 202651-20029 contacts →

Exact match

“As a market leader in providing energy efficient heating and ventilation solutions, Johnson & Starley has an impressive portfolio of products.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchSunbury, United KingdomHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“JSA Service specialise in providing first class commercial Heating, Ventilation, Air Conditioning and Refrigeration services for nearly 50 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchHigh Wycombe, United KingdomHQ recorded Nov 6, 20261-1028 contacts →

Exact match

“Gas and Heating Services is a well-established company that provides a wide range of heating services to domestic customers across the United Kingdom.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchBanham, United KingdomHQ recorded Nov 6, 202651-20025 contacts →

Exact match

“MACBROOKGAS LTD is a heating and Insulation company based out of United Kingdom.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchPontypridd Rct, United KingdomHQ recorded Nov 6, 202651-20025 contacts →

Exact match

“Here at Laver Group we are pleased to offer a wide range of installation, maintenance & servicing services for all your heating & electrical needs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchSalisbury, United KingdomHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“SGS are a heating, plumbing, electrical company specialising in both domestic and commercial applications.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchCamberley, United KingdomHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“Trusted provider of cost-saving maintenance and repair of commercial heating, ventilation & air conditioning (HVAC) systems in London, Surrey, Hampshire, Hertfordshire, Berkshire…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchHull, United KingdomHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“CAM Refrigeration & Air Conditioning provides installation, service and maintenance across all HVAC sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchDenny, United KingdomHQ recorded Nov 6, 202651-20019 contacts →

Exact match

“Established in 1987, James Paterson & Sons are a professional contractor providing all aspects of plumbing and heating services across Scotland.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchChurch Fenton, United KingdomHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Born in Yorkshire.”

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

Showing 25 of 1,401 heating system installers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,619 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Heating system installers based in the United Kingdom at a glance

As of Nov 6, 2026
22.5%Verified-email coverage
5.1Average contacts per company
1-10Median size (employees)
6.4%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
865
11-50
323
51-200
61
201-500
6
501-1,000
4
1,001-5,000
4

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 1,401 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 “heating system installers” 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 1,619 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.

Heating system installers by metro

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 “heating system installers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many heating system installers are there based in the United Kingdom?

RevenueBase identified 1,401 company matches for heating system installers 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?

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

Which city has the most heating system installers?

London leads with 90 company records, followed by Leeds (20) and Manchester (17).

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 1,619 professional contacts with verified work emails tracked across these 1,401 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 1,401 heating system installers 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.