Company lists · Data refreshed September 2026

Top 25 Hvac services based in the United Kingdom

Name: Hvac services based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 2,581 companies tracked

RevenueBase identified 2,581 hvac services headquartered in the United Kingdom as of September 2026 and tracks 17,824 professional contacts across them, including 5,675 with verified work emails. London is the largest hub.

This list covers hvac services 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

2,581Companies

17,824Contacts tracked

5,675Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest hvac services based in the United Kingdom

Ranked by team size

Top 25 of 2,581 hvac services based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to hvac services: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	BAXI	Indirect evidence	Warwick, United KingdomHQ checked Sep 21, 2026	1,001-5,000	850 contacts →
	Indirect evidence “We're leading the energy transition to zero carbon, by offering complete residential and commercial heating and hot water solutions.” Source: RevenueBase Database · checked Sep 21, 2026
2	Colt International	Indirect evidence	Petersfield, United KingdomHQ checked Sep 21, 2026	1,001-5,000	505 contacts →
	Indirect evidence “Since 1931 we have been harnessing the natural elements to provide healthy, comfortable and safe working and living conditions in buildings.” Source: RevenueBase Database · checked Sep 21, 2026
3	Daikin UK	Indirect evidence	Weybridge, United KingdomHQ checked Sep 21, 2026	201-500	398 contacts →
	Indirect evidence “Experts in our field, Daikin UK is a leading supplier of heating, cooling and refrigeration solutions for commercial, residential and industrial applications.” Source: RevenueBase Database · checked Sep 21, 2026
4	Space Engineering Services LTD	Indirect evidence	Bristol, United KingdomHQ checked Sep 21, 2026	201-500	312 contacts →
	Indirect evidence “Space Engineering Services is the UK’s leading provider of refrigeration, heating, ventilation and air conditioning services.” Source: RevenueBase Database · checked Sep 21, 2026
5	Star Refrigeration	Indirect evidence	Glasgow, United KingdomHQ checked Sep 21, 2026	201-500	298 contacts →
	Indirect evidence “Star Refrigeration is a globally diversified cooling, heating, freezing, mechanical and electrical group of companies.” Source: RevenueBase Database · checked Sep 21, 2026
6	Swegon Uk&i	Indirect evidence	Ashby-de-la-zouch, United KingdomHQ checked Sep 21, 2026	501-1,000	156 contacts →
	Indirect evidence “Swegon is a market leading supplier of energy efficient indoor climate, cooling and life safety systems.” Source: RevenueBase Database · checked Sep 21, 2026
7	Grayson Thermal Systems	Indirect evidence	Tyseley, United KingdomHQ checked Sep 21, 2026	201-500	153 contacts →
	Indirect evidence “Imagine what’s possible… That’s the question that drives us to push the boundaries of thermal management – delivering the highest levels of performance, efficiency, and…” Source: RevenueBase Database · checked Sep 21, 2026
8	T Brown Group	Indirect evidence	Leatherhead, United KingdomHQ checked Sep 21, 2026	501-1,000	153 contacts →
	Indirect evidence “T Brown Group was formed on the 1st April 1971.” Source: RevenueBase Database · checked Sep 21, 2026
9	Swale Heating Part Of Sureserve	Indirect evidence	Sittingbourne, United KingdomHQ checked Sep 21, 2026	201-500	136 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 21, 2026
10	Adcock Refrigeration And AIR Conditioning	Indirect evidence	Cambridge, United KingdomHQ checked Sep 21, 2026	201-500	132 contacts →
	Indirect evidence “Adcock Refrigeration and Air Conditioning design, install, service and care for systems in commercial, industrial and individual residential premises right across the UK.” Source: RevenueBase Database · checked Sep 21, 2026
11	Sale Group	Indirect evidence	Cheam, United KingdomHQ checked Sep 21, 2026	51-200	128 contacts →
	Indirect evidence “We are a building services company specialised in Mechanical and Public Health sectors, carrying out heating, air conditioning, plumbing and domestic services.” Source: RevenueBase Database · checked Sep 21, 2026
12	Sureserve Compliance Central	Indirect evidence	Unit 5-6 Boudicca Road, United KingdomHQ checked Sep 21, 2026	501-1,000	127 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 21, 2026
13	Commercial Maintenance Services UK Limited	Indirect evidence	Newcastle, United KingdomHQ checked Sep 21, 2026	201-500	119 contacts →
	Indirect evidence “Commercial Maintenance Services UK Ltd (CMS) is a nationwide market leader in Facilities and Commercial Building Maintenance-proudly built on the values of Responsiveness…” Source: RevenueBase Database · checked Sep 21, 2026
14	Airco Refrigeration And AIR Conditioning LTD	Indirect evidence	Hull, United KingdomHQ checked Sep 21, 2026	51-200	114 contacts →
	Indirect evidence “Neil Fisher started Airco in 1991.” Source: RevenueBase Database · checked Sep 21, 2026
15	Homeserve Emea	Indirect evidence	Walsall, United KingdomHQ checked Sep 21, 2026	5,001-10,000	108 contacts →
	Indirect evidence “HomeServe EMEA makes home repairs and improvements easy.” Source: RevenueBase Database · checked Sep 21, 2026
16	Hotchkiss LTD	Indirect evidence	Eastbourne, United KingdomHQ checked Sep 21, 2026	201-500	107 contacts →
	Indirect evidence “Hotchkiss is the UK's leading air conditioning and ventilation contractor.” Source: RevenueBase Database · checked Sep 21, 2026
17	Woodford	Indirect evidence	Loughton, United KingdomHQ checked Sep 21, 2026	51-200	99 contacts →
	Indirect evidence “Woodford specialise in mechanical and electrical building services for the construction market.” Source: RevenueBase Database · checked Sep 21, 2026
18	Daikin Applied UK LTD	Strong evidence	Cramlington, United KingdomHQ checked Sep 21, 2026	51-200	97 contacts →
	Strong evidence “Daikin Applied (UK) Ltd (formerly McQuay UK Ltd) is the market leader in energy-efficient end-to-end HVAC solutions, including AHU and chiller products, heat pumps, service and…” Source: RevenueBase Database · checked Sep 21, 2026
19	BSW Heating Limited	Indirect evidence	Kenley, United KingdomHQ checked Sep 21, 2026	201-500	96 contacts →
	Indirect evidence “We are a domestic and commercial heating servicing, maintenance and installations contractor working across the South East.” Source: RevenueBase Database · checked Sep 21, 2026
20	Zehnder Group UK	Indirect evidence	Camberley, United KingdomHQ checked Sep 21, 2026	201-500	94 contacts →
	Indirect evidence “Zehnder Group is a leading international provider of indoor climate solutions, offering a comprehensive range of products and services for comfortable and healthy living…” Source: RevenueBase Database · checked Sep 21, 2026
21	Nationwide AIR Conditioning Limited	Indirect evidence	Edenbridge, United KingdomHQ checked Sep 21, 2026	51-200	92 contacts →
	Indirect evidence “Nationwide Air Conditioning Limited is a carbon-neutral business that has been exceeding customer expectations since 2001.” Source: RevenueBase Database · checked Sep 21, 2026
22	JBC	Indirect evidence	Normanton, United KingdomHQ checked Sep 21, 2026	51-200	86 contacts →
	Indirect evidence “JBC Industrial Services is the leading name in Industrial Boiler and Burner service, maintenance, and repair.” Source: RevenueBase Database · checked Sep 21, 2026
23	HFL Building Solutions Group	Indirect evidence	Manchester, United KingdomHQ checked Sep 21, 2026	51-200	82 contacts →
	Indirect evidence “HFL Building Solutions Group offers mobile maintenance services, integrated facilities services and building environmental services to wide range of sectors.” Source: RevenueBase Database · checked Sep 21, 2026
24	Hvac Recruitment Limited	Strong evidence	Uk, United KingdomHQ checked Sep 21, 2026	51-200	82 contacts →
	Strong evidence “HVAC FM - Specialist Recruiters for the FM and HVAC Industry covering the UK and overseas.” Source: RevenueBase Database · checked Sep 21, 2026
25	Aqua Cooling LTD	Indirect evidence	Eastleigh, United KingdomHQ checked Sep 21, 2026	51-200	80 contacts →
	Indirect evidence “At Aqua we consult, design, install and service a wide range of innovative temperature control solutions for purchase or hire across the UK and further afield.” Source: RevenueBase Database · checked Sep 21, 2026

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: hvac services. 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 hvac services.
Partial evidence: Its own public description names part of hvac services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name hvac services. 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 2,581 hvac services based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 5,675 reachable decision-makers.

Free signup · no credit card

View the full list →

Hvac services based in the United Kingdom at a glance

As of Sep 21, 2026

31.8%Verified-email coverage

6.9Average contacts per company

1-10Median size (employees)

8.7%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

1,520

11-50

825

51-200

144

201-500

501-1,000

1,001-5,000

5,001-10,000

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 2,581 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 hvac services, 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 “hvac services”. 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 hvac services), 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 hvac services, 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, 5,675 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.

Hvac services by metro

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 hvac services, 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 hvac services are there based in the United Kingdom?

RevenueBase identified 2,581 hvac services 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?

BAXI, headquartered in Warwick, tops this list with the largest team on record.

Which city has the most hvac services?

London leads with 225 headquartered companies, followed by Glasgow (36) and Birmingham (34).

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 5,675 verified decision-maker contacts tracked across these 2,581 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.

Ready to reach these companies? Verified emails and direct dials for all 2,581 hvac services based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Hvac services by geography

Browse the directory

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.