Company lists · Data refreshed November 2026

Top 25 Hot water system maintenance services based in the United Kingdom

RevenueBase identified 334 company matches for hot water system maintenance services associated with the United Kingdom as of November 2026 and tracks 1,429 professional contacts across them, including 417 with verified work emails. London is the largest hub.

This list covers company matches for hot water system maintenance services 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
334Companies
1,429Contacts tracked
417Verified emails
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The 25 largest hot water system maintenance services based in the United Kingdom

Ranked by team size
Top 25 of 334 company matches for hot water system maintenance services 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 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
2Exact matchOldbury, United KingdomHQ recorded Nov 6, 2026201-50078 contacts →

Exact match

“Rightio is a nationally recognised home and commercial property maintenance company committed to doing things right.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-20064 contacts →

Exact match

“Masterfix | Property Maintenance & Technical Services London Masterfix is a leading London property maintenance company, delivering high-quality reactive maintenance, planned…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact 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
5Exact matchStockton-on-tees, United KingdomHQ recorded Nov 6, 202611-5032 contacts →

Exact match

“JH Mechanical Services is a leading provider of mechanical, electrical and water management services across the North of England.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact 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
7Exact 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
8Exact matchFarnborough, United KingdomHQ recorded Nov 6, 202611-5024 contacts →

Exact match

“With more than 50 years of industry experience, Adveco Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact 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
10Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Serviceteam is a heating, plumbing, electrical and property maintenance company providing, value for money, trade professionals for domestic properties and businesses however big…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5019 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 · Nov 6, 2026 · View company records in RevenueBase
12Exact matchHigh Wycombe, United KingdomHQ recorded Nov 6, 202651-20017 contacts →

Exact match

“Heating, Plumbing, Air Conditioning, Electrical & BMS Installation, Servicing and Repair.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchHarrogate, United KingdomHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Robinsons Facilities Services are reliable and efficient commercial building maintenance, repair and compliance engineers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBasildon, United KingdomHQ recorded Nov 6, 202651-20015 contacts →

Exact match

“Your property is our priority Outstanding property maintenance services delivered across the UK, 24/7, covering a wide variety of disciplines including; heating and gas…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchReading, United KingdomHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“At Premier Heating Solutions, we provide homeowners across Berkshire, South Oxfordshire, and North Hampshire with reliable, energy-efficient plumbing, heating and electrical…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchHarrow, United KingdomHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“At PHD Mechanical, we are specialists in delivering reliable and efficient building maintenance services across London and the South East.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchOldbury, United KingdomHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Formed in 1982, Lord Combustion Services specialise in the design, installation, repair and maintenance of sustainable heating and hot water systems, supporting over businesses…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBirmingham, United KingdomHQ recorded Nov 6, 202611-5012 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchPerth, United KingdomHQ recorded Nov 6, 20261-1011 contacts →

Exact match

“We specialise in providing all elements of heating repair and maintenance services to you, including boilers, immersion heaters, radiators and getting other hot water and heating…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchLeicester, United KingdomHQ recorded Nov 6, 202651-20010 contacts →

Exact match

“William Freer LTD provides you with expert and extensive solutions to your Installation, servicing, repair and maintenance needs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBasingstoke, United KingdomHQ recorded Nov 6, 202611-5010 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchWoking, United KingdomHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Our happy customers tell us the combination of approachable service, high quality workmanship and reliability keeps them coming back.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchOrpington, United KingdomHQ recorded Nov 6, 202611-508 contacts →

Exact match

“We’ve spent decades building a reputation as one of the UK’s leading plumbing, heating and cooling specialists, and it’s all down to the way we work.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Tredion provides services inclusive of PPMs, reactives and new installations for Gas boiler and its secondary plant including pumps, pressurisation units and control panels.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchStockport, United KingdomHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Flueclean have been providing Commercial and Industrial heating services throughout the North West for over 50 years.”

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

Showing 25 of 334 hot water system maintenance services based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 417 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hot water system maintenance services based in the United Kingdom at a glance

As of Nov 6, 2026
29.2%Verified-email coverage
4.3Average contacts per company
1-10Median size (employees)
13.2%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
211
11-50
87
51-200
9
201-500
2
501-1,000
2

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 334 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 “hot water system maintenance services” 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 417 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.

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 “hot water system maintenance services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hot water system maintenance services are there based in the United Kingdom?

RevenueBase identified 334 company matches for hot water system maintenance services 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?

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

Which city has the most hot water system maintenance services?

London leads with 44 company records, followed by Portsmouth (5) and Stockport (5).

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 417 professional contacts with verified work emails tracked across these 334 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 334 hot water system maintenance services 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.