Company lists · Data refreshed September 2026

Top 25 Gas appliance installation services based in the United Kingdom

Name: Gas appliance installation 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 20, 2026 594 companies tracked

RevenueBase identified 594 gas appliance installation services headquartered in the United Kingdom as of September 2026 and tracks 1,637 professional contacts across them, including 278 with verified work emails. London is the largest hub.

This list covers gas appliance installation 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 20, 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 20, 2026 86% judged on-target in blind review

594Companies

1,637Contacts tracked

278Verified emails

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The 25 largest gas appliance installation services based in the United Kingdom

Ranked by team size

Top 25 of 594 gas appliance installation services based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to gas appliance installation 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	Sureserve Compliance North	Strong evidence	Glasgow, United KingdomHQ checked Sep 20, 2026	51-200	72 contacts →
	Strong evidence “Established in 1996 we are a leading provider of Gas Service & Maintenance and installation of Heating Systems to the Social Housing Sector across Scotland.” Source: RevenueBase Database · checked Sep 20, 2026
2	Corgi Technical Services	Indirect evidence	Basingstoke, United KingdomHQ checked Sep 20, 2026	11-50	54 contacts →
	Indirect evidence “With over 30 years experience providing professional services in industry, CORGI Technical Services offers support and expertise indispensable to our clients.” Source: RevenueBase Database · checked Sep 20, 2026
3	Gas-Elec Group	Indirect evidence	Bury St. Edmunds, United KingdomHQ checked Sep 20, 2026	51-200	43 contacts →
	Indirect evidence “The company specialises in being able to provide a bespoke service to the homeowners, landlords, managing agents and the commercial sectors.” Source: RevenueBase Database · checked Sep 20, 2026
4	Paine Manwaring LTD	Indirect evidence	Worthing, United KingdomHQ checked Sep 20, 2026	51-200	33 contacts →
	Indirect evidence “About Paine Manwaring - Heating, Plumbing and Electrical specialists in Sussex, Surrey and Hampshire Paine Manwaring heating engineers, plumbers and electricians are dedicated to…” Source: RevenueBase Database · checked Sep 20, 2026
5	M&n Heating & Plumbing	Indirect evidence	Banbury, United KingdomHQ checked Sep 20, 2026	51-200	26 contacts →
	Indirect evidence “M&N Heating & Plumbing is an independent company based in Bloxham on the edge of Banbury, serving Oxfordshire, Northamptonshire, Buckinghamshire and Warwickshire.” Source: RevenueBase Database · checked Sep 20, 2026
6	HCS Mechanical Services	Indirect evidence	Skipton, United KingdomHQ checked Sep 20, 2026	51-200	26 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 20, 2026
7	UK GAS Services LTD	Indirect evidence	Leicester, United KingdomHQ checked Sep 20, 2026	51-200	15 contacts →
	Indirect evidence “At UK GS we are your trusted home service partner.” Source: RevenueBase Database · checked Sep 20, 2026
8	Tencer LTD	Partial evidence	High Wycombe, United KingdomHQ checked Sep 20, 2026	51-200	14 contacts →
	Partial evidence “Heating, Plumbing, Air Conditioning, Electrical & BMS Installation, Servicing and Repair.” Source: RevenueBase Database · checked Sep 20, 2026
9	Premier Heating Solutions	Indirect evidence	Reading, United KingdomHQ checked Sep 20, 2026	11-50	13 contacts →
	Indirect evidence “At Premier Heating Solutions, we provide homeowners across Berkshire, South Oxfordshire, and North Hampshire with reliable, energy-efficient plumbing, heating and electrical…” Source: RevenueBase Database · checked Sep 20, 2026
10	Safegas LTD	Indirect evidence	Wetherby, United KingdomHQ checked Sep 20, 2026	11-50	13 contacts →
	Indirect evidence “Founded in 1996, over the past twenty years we've helped over homes with a range of heating services, and we also look after commercial premises too.” Source: RevenueBase Database · checked Sep 20, 2026
11	Lancashire GAS Services LTD	Partial evidence	Bamber Bridge, United KingdomHQ checked Sep 20, 2026	11-50	11 contacts →
	Partial evidence “Lancashire Gas Services is dedicated to bringing you and your business the highest standards of workmanship in all aspects of the industry, from customer care through to the…” Source: RevenueBase Database · checked Sep 20, 2026
12	Multi Maintenance Services UK LTD	Partial evidence	St Asaph, United KingdomHQ checked Sep 20, 2026	11-50	9 contacts →
	Partial evidence “At Multi Maintenance Services (UK) Ltd, we specialise in providing a comprehensive range of heating, gas, and electrical services for commercial clients.” Source: RevenueBase Database · checked Sep 20, 2026
13	Alecta Technical Solutions	Indirect evidence	Blashford, United KingdomHQ checked Sep 20, 2026	1-10	9 contacts →
	Indirect evidence “At Alecta Technical Solutions we are committed to delivering reliable, safe and efficient services that keep businesses moving.” Source: RevenueBase Database · checked Sep 20, 2026
14	JB Group LTD	Indirect evidence	Reigate, United KingdomHQ checked Sep 20, 2026	11-50	9 contacts →
	Indirect evidence “JB Group Ltd is a well-known plumbing and heating business located in Reigate, Surrey.” Source: RevenueBase Database · checked Sep 20, 2026
15	Hereford Heating Limited	Partial evidence	Hereford, United KingdomHQ checked Sep 20, 2026	11-50	9 contacts →
	Partial evidence “Hereford Heating Ltd is your trusted local expert for boiler installations, servicing, heating repairs, and electrical work in Hereford and throughout Herefordshire.” Source: RevenueBase Database · checked Sep 20, 2026
16	RGM Heating LTD	Partial evidence	Rosyth, United KingdomHQ checked Sep 20, 2026	11-50	8 contacts →
	Partial evidence “Scotland's leading Gas safe engineers.” Source: RevenueBase Database · checked Sep 20, 2026
17	Ignis Group	Partial evidence	Worcestershire, United KingdomHQ checked Sep 20, 2026	11-50	8 contacts →
	Partial evidence “Ignis Group are a commercial Gas and HVAC specialist based in Worcestershire covering the West Midlands and surrounding counties.” Source: RevenueBase Database · checked Sep 20, 2026
18	EB GAS Services	Strong evidence	Newry, United KingdomHQ checked Sep 20, 2026	11-50	8 contacts →
	Strong evidence “Established in 1966 as a domestic and commercial gas Centre selling bottled gas and domestic gas appliances, E.B.” Source: RevenueBase Database · checked Sep 20, 2026
19	William Freer LTD	Partial evidence	Leicester, United KingdomHQ checked Sep 20, 2026	51-200	7 contacts →
	Partial evidence “William Freer LTD provides you with expert and extensive solutions to your Installation, servicing, repair and maintenance needs.” Source: RevenueBase Database · checked Sep 20, 2026
20	HJT Projects	Indirect evidence	Ribchester, United KingdomHQ checked Sep 20, 2026	11-50	7 contacts →
	Indirect evidence “Based in Lancashire, HJT Projects provide all forms of large Domestic, Commercial & Industrial Plumbing, Heating & HVAC engineer services throughout the North West.” Source: RevenueBase Database · checked Sep 20, 2026
21	AGW	Strong evidence	Irvine, United KingdomHQ checked Sep 20, 2026	1-10	7 contacts →
	Strong evidence “AGW is a leading gas engineering company specialising in the design, installation, maintenance, and servicing of gas infrastructure and appliances for both domestic and commercial…” Source: RevenueBase Database · checked Sep 20, 2026
22	Bailey's Heating Company LTD	Strong evidence	Bedford, United KingdomHQ checked Sep 20, 2026	11-50	7 contacts →
	Strong evidence “BHC provides a wide range of services to homeowners and caters for all domestic gas appliance requirements.” Source: RevenueBase Database · checked Sep 20, 2026
23	Damand Services	Indirect evidence	Aldridge, United KingdomHQ checked Sep 20, 2026	11-50	6 contacts →
	Indirect evidence “A well established and experienced family run business.” Source: RevenueBase Database · checked Sep 20, 2026
24	Glasgow City Plumbers LTD	Indirect evidence	Glasgow, United KingdomHQ checked Sep 20, 2026	1-10	6 contacts →
	Indirect evidence “Owner of Mechanical services company Glasgow City Plumbers LTD.” Source: RevenueBase Database · checked Sep 20, 2026
25	Edward Bays LTD	Indirect evidence	Swindon, United KingdomHQ checked Sep 20, 2026	11-50	6 contacts →
	Indirect evidence “Established in 1896, Edward Bays Ltd is one of the South West's longest-standing mechanical services contractors.” Source: RevenueBase Database · checked Sep 20, 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: gas appliance installation 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 gas appliance installation services.
Partial evidence: Its own public description names part of gas appliance installation services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name gas appliance installation 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 594 gas appliance installation services based in the United Kingdom

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Gas appliance installation services based in the United Kingdom at a glance

As of Sep 20, 2026

17.0%Verified-email coverage

2.8Average contacts per company

1-10Median size (employees)

6.4%Largest-city concentration · London

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

444

11-50

51-200

201-500

501-1,000

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 594 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 gas appliance installation 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 “gas appliance installation 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 gas appliance installation 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 gas appliance installation 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, 278 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 20, 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.

Gas appliance installation services by metro

Gas appliance installation services in London38

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 gas appliance installation 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 gas appliance installation services are there based in the United Kingdom?

RevenueBase identified 594 gas appliance installation 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?

Sureserve Compliance North, headquartered in Glasgow, tops this list with the largest team on record.

Which city has the most gas appliance installation services?

London leads with 38 headquartered companies, followed by Glasgow (14) and Birmingham (11).

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 278 verified decision-maker contacts tracked across these 594 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 20, 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.