Company lists · Data refreshed September 2026

Top 25 Industrial water heater installers based in the United Kingdom

Name: Industrial water heater installers based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 613 companies tracked

RevenueBase identified 613 company matches for industrial water heater installers associated with the United Kingdom as of September 2026 and tracks 3,011 professional contacts across them, including 829 with verified work emails. London is the largest hub.

This list covers company matches for industrial water heater 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 September 17, 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 Sep 17, 2026 How this list was built

613Companies

3,011Contacts tracked

829Verified emails

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The 25 largest industrial water heater installers based in the United Kingdom

Ranked by team size

Top 25 of 613 company matches for industrial water heater installers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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	Vaillant UK	Exact match	Belper, United KingdomHQ recorded Sep 17, 2026	501-1,000	179 contacts →
	Exact match “What does it take to deliver confidence at every stage of the heating journey?” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Swale Heating Part Of Sureserve	Exact match	Sittingbourne, United KingdomHQ recorded Sep 17, 2026	201-500	136 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 · Sep 17, 2026 · View company records in RevenueBase
3	Cochran	Exact match	Annan, United KingdomHQ recorded Sep 17, 2026	201-500	110 contacts →
	Exact match “Cochran has been embedded within industrial boiler manufacturing since 1878.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Byworth Boilers Limited	Exact match	Keighley, United KingdomHQ recorded Sep 17, 2026	51-200	96 contacts →
	Exact match “Your industrial boiler is at the heart of your operations.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	JBC	Exact match	Normanton, United KingdomHQ recorded Sep 17, 2026	51-200	86 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 · Sep 17, 2026 · View company records in RevenueBase
6	James Ramsay	Exact match	Glasgow, United KingdomHQ recorded Sep 17, 2026	51-200	54 contacts →
	Exact match “Heating - Pipework - Process - Maintenance.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	BTU Installation & Maintenance LTD	Exact match	Guildford, United KingdomHQ recorded Sep 17, 2026	51-200	53 contacts →
	Exact match “BTU (Installation and Maintenance) Ltd, is a privately owned business based in Guildford, Surrey.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Sentinel Performance Solutions LTD	Exact match	Warrington, United KingdomHQ recorded Sep 17, 2026	51-200	51 contacts →
	Exact match “We clean, protect and maintain domestic and commercial heating and hot water systems by providing best practice solutions and products internationally.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Hamworthy Heating LTD	Exact match	Hull, United KingdomHQ recorded Sep 17, 2026	51-200	45 contacts →
	Exact match “Hamworthy Heating is a British manufacturer and supplier of commercial heating and hot water products.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Plumbing & GAS Solutions LTD	Exact match	Milton Keynes, United KingdomHQ recorded Sep 17, 2026	11-50	41 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 · Sep 17, 2026 · View company records in RevenueBase
11	Lochinvar, UK	Exact match	Banbury, United KingdomHQ recorded Sep 17, 2026	11-50	40 contacts →
	Exact match “Lochinvar designs, manufactures and distributes a comprehensive range of high efficiency gas fired water heaters and boilers for commercial and industrial applications.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	361 Degrees LTD AIR Conditioning, Heating & Ventilation Solutions	Exact match	Leighton Buzzard, United KingdomHQ recorded Sep 17, 2026	11-50	30 contacts →
	Exact match “A good environment can improve morale, productivity and employee retention.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	M&n Heating & Plumbing	Exact match	Banbury, United KingdomHQ recorded Sep 17, 2026	51-200	26 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 · Sep 17, 2026 · View company records in RevenueBase
14	HCS Mechanical Services	Exact match	Skipton, United KingdomHQ recorded Sep 17, 2026	51-200	26 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 · Sep 17, 2026 · View company records in RevenueBase
15	Chem-Aqua Europe	Exact match	Wolverhampton, United KingdomHQ recorded Sep 17, 2026	n/a	25 contacts →
	Exact match “Water treatment is an important part of preventative maintenance programmes for boiler, cooling and process water systems.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Adveco LTD	Exact match	Farnborough, United KingdomHQ recorded Sep 17, 2026	11-50	24 contacts →
	Exact match “With more than 50 years of industry experience, Adveco Ltd.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Mellor Bromley Mechanical Services	Exact match	Leicester, United KingdomHQ recorded Sep 17, 2026	51-200	21 contacts →
	Exact match “Mellor Bromley has a vast wealth of experience and expertise in the design and installation of Mechanical Services (heating, cooling, air conditioning, ventilation, water plumbing…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	TSS Facilities LTD	Exact match	Brighton & Hove, United KingdomHQ recorded Sep 17, 2026	11-50	21 contacts →
	Exact match “TSS Facilities is a leading HVAC services company based in Brighton serving businesses, organisations and the local authorities across the South.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	R.G.Evans Plumbing And Heating	Exact match	Bourne End, United KingdomHQ recorded Sep 17, 2026	51-200	18 contacts →
	Exact match “R.G.Evans Plumbing and Heating is part of the Evans Group, a family run business operating throughout South East England since 1948.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Mcquillan Boiler Services LTD	Exact match	Rochdale, United KingdomHQ recorded Sep 17, 2026	51-200	18 contacts →
	Exact match “McQuillan Boiler Services was established in 1989 with the intention of offering our loyal customers reliable support and servicing with both their industrial and commercial steam…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Cleanheat	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	17 contacts →
	Exact match “CleanHeat are a London based Commercial Heating and engineering company working throughout central London and the Home Counties.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Home & Industrial Heating Services Limited	Exact match	Eastleigh, United KingdomHQ recorded Sep 17, 2026	11-50	17 contacts →
	Exact match “H&I (Home & Industrial) Heating was established in 1972 as a sole trader/partnership for the Heating Industry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	K&m Technical Services	Exact match	Belfast, United KingdomHQ recorded Sep 17, 2026	51-200	16 contacts →
	Exact match “KM Technical is one of UK’s leading provider of installation and service solutions in the areas of electrical installation, heating & plumbing and heating ventilation and air…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Heatworks LTD	Exact match	Gomersal, United KingdomHQ recorded Sep 17, 2026	11-50	16 contacts →
	Exact match “Heatworks has been delivering air-conditioning, heating, ventilation, process cooling and water services solutions across all industry sectors for over 25 years.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Climatix Group	Exact match	Church Fenton, United KingdomHQ recorded Sep 17, 2026	11-50	16 contacts →
	Exact match “Born in Yorkshire.” Recorded in the RevenueBase company graph · Sep 17, 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 “industrial water heater installers”. 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 613 industrial water heater installers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 829 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Industrial water heater installers based in the United Kingdom at a glance

As of Sep 17, 2026

27.5%Verified-email coverage

4.9Average contacts per company

1-10Median size (employees)

5.9%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

374

11-50

181

51-200

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 613 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 “industrial water heater 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 829 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 September 17, 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 “industrial water heater installers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many industrial water heater installers are there based in the United Kingdom?

RevenueBase identified 613 company matches for industrial water heater installers associated with the United Kingdom as of September 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?

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

Which city has the most industrial water heater installers?

London leads with 36 company records, followed by Leicester (10) and Manchester (9).

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 829 professional contacts with verified work emails tracked across these 613 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 September 17, 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.