Company lists · Data refreshed October 2026

Top 25 District heating installation contractors based in the United Kingdom

Name: District heating installation contractors based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 11, 2026 1,800 companies tracked

RevenueBase identified 1,800 company matches for district heating installation contractors associated with the United Kingdom as of October 2026 and tracks 12,342 professional contacts across them, including 3,884 with verified work emails. London is the largest hub.

This list covers company matches for district heating installation 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 October 11, 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 11, 2026 How this list was built

1,800Companies

12,342Contacts tracked

3,884Verified emails

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The 25 largest district heating installation contractors based in the United Kingdom

Ranked by team size

Top 25 of 1,800 company matches for district heating installation contractors based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 11, 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	BAXI	Exact match	Warwick, United KingdomHQ recorded Oct 11, 2026	1,001-5,000	884 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 · Oct 11, 2026 · View company records in RevenueBase
2	Vital Energi	Exact match	Blackburn, United KingdomHQ recorded Oct 11, 2026	501-1,000	749 contacts →
	Exact match “Our 30+ years’ experience have involved us in the creation of major UK district heating networks in areas such as Sheffield, Nottingham and London.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
3	Vaillant UK	Exact match	Belper, United KingdomHQ recorded Oct 11, 2026	501-1,000	190 contacts →
	Exact match “What does it take to deliver confidence at every stage of the heating journey?” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
4	T Brown Group	Exact match	Leatherhead, United KingdomHQ recorded Oct 11, 2026	501-1,000	167 contacts →
	Exact match “T Brown Group was formed on the 1st April 1971.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
5	Switch2 Energy Limited	Exact match	Shipley, United KingdomHQ recorded Oct 11, 2026	201-500	159 contacts →
	Exact match “Switch2 is the UK’s most experienced and capable provider of end-to-end solutions for residential heat networks.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
6	Swale Heating Part Of Sureserve	Exact match	Sittingbourne, United KingdomHQ recorded Oct 11, 2026	201-500	129 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 · Oct 11, 2026 · View company records in RevenueBase
7	Sureserve Compliance Central	Exact match	Unit 5-6 Boudicca Road, United KingdomHQ recorded Oct 11, 2026	501-1,000	127 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 · Oct 11, 2026 · View company records in RevenueBase
8	Bring Energy	Exact match	London, United KingdomHQ recorded Oct 11, 2026	51-200	126 contacts →
	Exact match “We are Bring Energy.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
9	Robert Heath Heating	Exact match	New Malden, United KingdomHQ recorded Oct 11, 2026	201-500	121 contacts →
	Exact match “Robert Heath Heating is a leading provider of heating, hot water and electrical solutions for the social housing sector and private clients in the UK.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
10	Grant Engineering UK LTD	Exact match	Swindon, United KingdomHQ recorded Oct 11, 2026	51-200	120 contacts →
	Exact match “We are a leading supplier of sustainable heating systems, including HVO boilers, air source heat pumps, solar thermal, hot water storage cylinders, aluminium radiators and…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
11	Correct Contract Services CCS	Exact match	Andover, United KingdomHQ recorded Oct 11, 2026	201-500	109 contacts →
	Exact match “Correct Contract Services (CCS) is a trusted main contractor for compliance and energy services, expertly serving social housing landlords across the UK.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
12	CPC Civils	Exact match	Solihull, United KingdomHQ recorded Oct 11, 2026	51-200	103 contacts →
	Exact match “CPC Civils are an experienced civil engineering contractor with a wide range of expertise and specialist divisions.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
13	BSW Heating Limited	Exact match	Kenley, United KingdomHQ recorded Oct 11, 2026	201-500	103 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 · Oct 11, 2026 · View company records in RevenueBase
14	SAV Systems	Exact match	Woking, United KingdomHQ recorded Oct 11, 2026	51-200	99 contacts →
	Exact match “SAV Systems is an established provider of energy-efficient heating and ventilation solutions.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
15	BOXT	Exact match	Leeds, United KingdomHQ recorded Oct 11, 2026	51-200	96 contacts →
	Exact match “We started out as a trailblazing boiler installation company in 2017 – the first to offer everything effortlessly online.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
16	Byworth Boilers Limited	Exact match	Keighley, United KingdomHQ recorded Oct 11, 2026	51-200	95 contacts →
	Exact match “Your industrial boiler is at the heart of your operations.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
17	JBC	Exact match	Normanton, United KingdomHQ recorded Oct 11, 2026	51-200	91 contacts →
	Exact match “JBC Industrial Services is the leading name in Industrial Boiler and Burner service, maintenance, and repair.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
18	0800 Repair	Exact match	Houghton-le-spring, United KingdomHQ recorded Oct 11, 2026	201-500	89 contacts →
	Exact match “We specialise in a whole range of professional, gas, heating and boiler services, as well as home insulation and PV throughout UK.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
19	Purdy Part Of Sureserve	Exact match	London, United KingdomHQ recorded Oct 11, 2026	201-500	78 contacts →
	Exact match “Who are we?” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
20	Ormandy Rycroft Engineering	Exact match	Bradford, United KingdomHQ recorded Oct 11, 2026	51-200	72 contacts →
	Exact match “Ormandy Rycroft Engineering aims to be a market leading provider of world class heat transfer and packaged solutions through our integrated portfolio of products, and our…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
21	Nu-Heat Underfloor Heating & Renewables	Exact match	Honiton, United KingdomHQ recorded Oct 11, 2026	51-200	71 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 · Oct 11, 2026 · View company records in RevenueBase
22	Powrmatic Limited	Exact match	Ilminster, United KingdomHQ recorded Oct 11, 2026	51-200	69 contacts →
	Exact match “Powrmatic is a leading manufacturer and solution provider of advanced HVAC systems, including warm air heating, radiant heating, electric and water-based systems, as well as…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
23	ECO Approach	Exact match	Beckenham, United KingdomHQ recorded Oct 11, 2026	51-200	63 contacts →
	Exact match “We’re a leading nationwide property services company established in 2013.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
24	James Ramsay	Exact match	Glasgow, United KingdomHQ recorded Oct 11, 2026	51-200	59 contacts →
	Exact match “Heating - Pipework - Process - Maintenance.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
25	AIR Technology Systems	Exact match	Bromsgrove, United KingdomHQ recorded Oct 11, 2026	51-200	58 contacts →
	Exact match “Air Technology Systems Ltd (ATS) are design and project management specialist contractors focused on providing proprietary and energy saving, Climate Control & Ventilation…” Recorded in the RevenueBase company graph · Oct 11, 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 “district heating installation 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 1,800 district heating installation contractors based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 3,884 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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District heating installation contractors based in the United Kingdom at a glance

As of Oct 11, 2026

31.5%Verified-email coverage

6.9Average contacts per company

1-10Median size (employees)

5.9%Largest-city concentration · London

Oct 11, 2026Page data refreshed

Companies by employee count

1-10

1,105

11-50

503

51-200

109

201-500

501-1,000

1,001-5,000

10001+

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 1,800 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 “district heating installation 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 3,884 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 11, 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.

District heating installation contractors 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 “district heating installation contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many district heating installation contractors are there based in the United Kingdom?

RevenueBase identified 1,800 company matches for district heating installation contractors 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?

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

Which city has the most district heating installation contractors?

London leads with 107 company records, followed by Glasgow (34) and Leeds (27).

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 3,884 professional contacts with verified work emails tracked across these 1,800 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 11, 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.