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Plumbing & Heating Companies in the UK: 25,000+ Active Firms (2026)
Plumbing and heating companies install, repair and maintain water, gas and heating systems for homes, landlords and commercial premises across the UK.
Buying decisions tend to sit with property owners, landlords, facilities teams, housebuilders and public-sector estates rather than a single centralised buyer. Engagements range from reactive call-outs and parts-led repairs to planned servicing, installation projects and rolling maintenance contracts across domestic, commercial and industrial sites. The operational centre of gravity is field-engineer utilisation: scheduling, compliance evidence, access to documented customer assets and procurement of replacement parts. Smaller contractors usually compete on locality and response times, while multi-site operators tend to win where buyers need repeatable service levels and auditable safety processes across dispersed premises.
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The UK cohort contains 25,757 actively trading plumbing and heating firms, making it a broad contractor market rather than a narrow specialist niche. Reported headcount totals 5,066, reflecting the labour requirement behind van-based service work, emergency repairs and scheduled maintenance. Scale is uneven: 371 companies report turnover above £5M, while 6,162 firms have been incorporated since 2022. That mix gives researchers both a long tail of newer local operators and a thinner band of larger contractors serving landlords, facilities managers, housebuilders and commercial premises.
Safety and documentation sit close to the commercial model because much of the work involves gas, hot water, pipework and occupied premises. Buyers often need certificates, service histories, job sheets and asset records as much as labour availability, particularly in rented housing, facilities management and public-sector estates. Procurement therefore favours contractors that can evidence engineer competence, attendance, parts used and remedial recommendations. Market structure remains fragmented, but compliance administration gives larger regional contractors an advantage where customers want a single supplier across several sites.
Further development appears likely to favour operators that turn recurring servicing into planned account management rather than relying only on emergency work. The cohort still looks weighted towards owner-managed and local contractors, so consolidation tends to come through service coverage, public-sector eligibility and facilities-management relationships rather than pure software-style scaling. Cost pressure, parts availability and compliance paperwork may keep margins uneven. At the same time, buyers with dispersed property portfolios have been pulling the market towards better scheduling discipline, clearer asset records and more consistent evidence of completed work.
25,757
Active firms
2026
371
Above £5M
annual revenue
6,162
Incorporated since 2022
Key facts
About 1% of the trading cohort reports turnover above £5M (371 of 25,757 firms) — the rest sits below that revenue band.
23% of the cohort was incorporated since 2022 (6,162 firms), so a sizeable share is in its first few filing cycles.
Work covers installation, repair and maintenance of water, gas and heating systems for homes, landlords and commercial premises.
Demand is split between recurring maintenance needs and project-led installation work, which points to different scheduling, pricing and procurement models.
Larger contractors tend to serve landlords, housing portfolios and commercial customers rather than only local domestic call-outs.
Top UK plumbing and heating companies
FDH SERVICES LTD
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides plumbing, gas, heating and electrical services for social housing providers, housing associations and local authorities, including installation, maintenance, safety inspections and 24‑hour…
Serves social landlords, housing associations and local authorities in the social housing sector, while also selling to residential and commercial property clients needing plumbing, gas, heating and…
Financial Health
StrongStrong · Growing, Hiring · 35% CAGR over 2y
Location
VILLAGE HEATING LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides heating, plumbing, electrical, and air conditioning services for commercial properties, housing providers, landlords, and multi-site organisations. Offers boiler repairs, emergency heating…
Serves businesses, housing providers, local authorities, landlords and homeowners across London and surrounding areas, including multi-site operators, commercial property managers, schools, hotels,…
Financial Health
HealthyHealthy · -58% CAGR over 5y
Location
Hampshire Plumbing & Heating Solutions Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides plumbing and heating contracting services for residential, commercial and new-build projects. Offers mechanical and electrical design, installation and renovation, including underfloor…
Serves B2B property developers, contractors and facilities owners across private and social housing, offices, refurbishment, leisure, industrial, medical and retail premises, alongside domestic…
Financial Health
StrongStrong · Growing, Hiring · 20% CAGR over 4y
Location
PHOENIX GAS SERVICES LIMITED
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides gas, plumbing, heating and electrical installation, repair and maintenance services for residential, social housing and commercial properties. Also installs energy‑efficiency and…
Serves social housing providers, housebuilders and private developers, plus commercial property owners and businesses nationwide with residential and commercial property portfolios.
Financial Health
HealthyHealthy · Profitable, Hiring · 14% CAGR over 2y
Location
MULTI MAINTENANCE SERVICES (UK) LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides commercial and domestic HVAC and plumbing services, including installation, repair and maintenance of heating, gas, air conditioning and ventilation systems. Offers system design, emergency…
Serves commercial and industrial clients, from small businesses and property companies to national retailers and multinationals across the UK, with some domestic customers in North Wales.
Financial Health
StrongStrong · Growing, Hiring · 7% CAGR over 4y
Location
DEFLUO PLUMBING AND DRAINAGE LIMITED
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsProvides commercial plumbing, heating and drainage services including planned preventative maintenance, reactive drain repairs and unblocking. Also delivers building maintenance and repair works such…
Serves commercial customers needing drainage, plumbing, heating and building maintenance, including multi-site operators such as restaurants and franchise businesses. Targets facilities, maintenance…
Financial Health
StableStable · -67% CAGR over 4y
Location
MEDWAY HEATING (BOLTON) LIMITED
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides heating, plumbing and mechanical building services including installation, repair and maintenance of oil and gas boilers, ventilation and air conditioning systems. Also offers electrical…
Serves commercial, industrial and public-sector organisations across the UK, including schools, libraries, healthcare sites, hospitals, commercial buildings, local housing authorities and housing…
Financial Health
HealthyHealthy · -8% CAGR over 2y
Location
EXPRESS SOLUTIONS GROUP LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides drainage and plumbing services for domestic and commercial properties, including drain unblocking, drainage surveys and repairs, hydro cutting, pitch fibre pipe replacement, gas and heating…
Serves a mix of UK homeowners and B2B customers, from local businesses to blue-chip multi-site operators, plus commercial clients requiring planned preventative maintenance and round-the-clock…
Financial Health
StrongStrong · Growing, Hiring · 19% CAGR over 4y
Location
T & D Barrs Plumbing & Heating Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides plumbing and central heating installation and maintenance, electrical work, gas services, drainage, and building services. Also delivers renewable energy systems and project management for…
Serves both commercial and domestic customers, including large and small businesses, facilities management firms, schools, contractors and homeowners across London and the Home Counties.
Financial Health
StableStable · 0% CAGR over 4y
Location
C HANLON FACILITIES MANAGEMENT LTD
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides plumbing, heating, electrical and drainage services for domestic and commercial properties, including installation, maintenance and emergency repairs. Also undertakes bathroom installation,…
Serves homeowners, commercial clients of all sizes, housing associations, local authorities, blue-chip companies and public sector organisations in Glasgow, Edinburgh and Scotland’s Central Belt.
Financial Health
DistressedDistressed · -21% CAGR over 2y
Location
LORD COMBUSTION SERVICES LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides commercial heating and HVAC engineering services, including boiler servicing, maintenance and repair, system design and installation, pipework fabrication, pumps and BMS controls, air…
Serves B2B and public sector organisations needing commercial heating and HVAC support, including schools and higher education, healthcare, heritage sites, industrial and manufacturing businesses,…
Financial Health
WeakWeak · -69% CAGR over 4y
Location
WT FLOCKHART LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides plumbing and heating engineering services including servicing and repair of gas and oil appliances, boiler and cooker installation, air source heat pump maintenance, landlord gas safety…
Serves domestic customers, letting agents, landlords and commercial organisations across Cornwall, including schools, factories and commercial kitchens.
Financial Health
HealthyHealthy · -2% CAGR over 4y
Location
SALTIRE FACILITIES MANAGEMENT LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides plumbing, heating and air‑conditioning installation and maintenance services. Installs and services boilers, gas central heating, electrical systems, heat pumps, solar panels, battery…
Serves social housing providers and other public sector housing clients, plus private homeowners, landlords and social housing tenants. Targets residential property customers needing heating,…
Financial Health
HealthyHealthy · -5% CAGR over 4y
Location
GREY MAN ENGINEERING LIMITED
Trajectory
5y · 2019–NowFinancial sub-scores
Computed from 5 filingsProvides commercial building engineering services including installation, maintenance and repair of gas, heating and hot water systems, plumbing and pipework, air conditioning, ventilation and air…
Serves organisations managing occupied commercial buildings, including schools and universities, nursing and residential care homes, hospitality operators and commercial property owners or facilities…
Financial Health
StrongStrong · Hiring · 19% CAGR over 6y
Location
BSW Building Services Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides boiler servicing, repairs and installation, central heating system installation and maintenance, and renewable heating such as air source heat pumps. Also delivers mechanical, electrical,…
Serves homeowners, businesses and organisations across Sussex, Surrey, Hampshire and Kent, including schools, hospitals, hotels, public buildings, and social housing landlords and residents.
Financial Health
StrongStrong · Growing · 2% CAGR over 4y
Location
H CLARKE & SONS LIMITED
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides mechanical, electrical and property maintenance services, including HVAC, plumbing, drainage and electrical installations and repairs. Also delivers planned and reactive maintenance,…
Serves B2B and public sector clients, including commercial property operators, housing associations and housing providers, buying installation, maintenance and framework support for buildings and…
Financial Health
DistressedDistressed · 2% CAGR over 3y
Location
PME (Dundee) Ltd
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides plumbing, heating and electrical contracting services for residential and commercial properties, including boiler replacements, heating system installations, electrical rewiring, plumbing…
Serves local authorities, housing associations, housing developers, public sector organisations, businesses and private homeowners across Scotland seeking domestic, commercial and public-sector…
Financial Health
StrongStrong · Growing, Hiring · 4% CAGR over 4y
Location
Shore Mechanical Services Ltd
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides mechanical building services for industrial and commercial facilities, including design, installation, and maintenance of heating, plumbing, ventilation, air conditioning, steam and piped…
Serves industrial and commercial organisations across the UK, including facilities, estates and operations teams responsible for mechanical building systems, maintenance and energy-related…
Financial Health
StableStable · 2% CAGR over 2y
Location
SMITH AND BYFORD LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides installation, maintenance and repair of gas boilers, central heating systems and electrical services for residential and commercial properties. Offers maintenance packages, landlord safety…
Serves homeowners, private landlords, letting and property management agents, social housing providers and commercial organisations across London and the South.
Financial Health
StrongStrong · Growing, Hiring · 8% CAGR over 2y
Location
MATTHEWS & TANNERT LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides plumbing, heating and building maintenance services for social housing providers, including kitchen and bathroom installations, whole-house refurbishments, central heating replacements,…
Serves social housing providers across the East Midlands, including housing associations and local authorities managing housing stock and refurbishment programmes.
Financial Health
HealthyHealthy · -90% CAGR over 2y
Location
C Watkins Plumbing Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides design, installation and maintenance of mechanical, electrical and plumbing (MEP) systems for construction projects, including high-rise residential developments. Also delivers facilities…
Serves B2B construction and property clients, including developers, main contractors, commercial building owners and facilities teams on high-rise residential, retrofit, flagship and energy-centre…
Financial Health
HealthyHealthy · Profitable · -3% CAGR over 4y
Location
C.P.L. HEATING AND PLUMBING LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides mechanical building services including design, fabrication, installation and maintenance of heating, ventilation and plumbing systems. Delivers commercial boiler plant rooms, domestic water…
Sells to public, private and commercial sector clients across the North West, including buyers in education, healthcare, commercial, industrial and residential development. Serves businesses, public…
Financial Health
HealthyHealthy · Hiring · 2% CAGR over 4y
Location
ROTHWELL PLUMBING SERVICES LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides plumbing, heating, gas and drainage installation, maintenance and repair services for residential and commercial properties. Also delivers mechanical and electrical works and installs…
Serves public and private sector organisations, commercial property clients and residential customers across the North of England, including developers, local authorities, leisure centres and…
Financial Health
HealthyHealthy · -94% CAGR over 4y
Location
GP PLUMBING & HEATING ENGINEERS LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides plumbing and heating installation services for new housing developments, including gas boiler systems, communal boiler houses and air source heat pump systems. Also offers system design,…
Sells to national house builders and residential property developers in the new-build housing sector, especially large housing developments across multiple regions in the South of England.
Financial Health
HealthyHealthy · Profitable · 0% CAGR over 2y
Location
Maintracts Services Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides plumbing and heating services for residential and commercial properties, including emergency plumbing, boiler repair, installation and servicing. Also offers electrical work and drainage…
Serves homeowners, landlords, property managers and businesses across London and surrounding areas needing plumbing, heating, electrical and drainage support.
Financial Health
StrongStrong · Growing, Hiring · 3% CAGR over 4y
Location
Gas World Ltd
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides plumbing, heating and gas engineering services including central heating and boiler installation, servicing and repair. Installs fireplaces, renewable energy systems and fire sprinkler…
Serves homeowners and private-sector customers, plus national house builders, small and large developers, local authorities and housing associations across Bristol, Bath and the South West.
Financial Health
WeakWeak · -0% CAGR over 2y
Location
OCO LIMITED
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides installation, maintenance, repair and servicing of heating, mechanical and electrical building systems. Also delivers water hygiene management, descaling and cleansing, and mechanical and…
Serves local authorities, housing associations, public sector bodies, commercial clients and private customers in domestic, communal and commercial properties across London and the South East.
Financial Health
StableStable · Hiring · 8% CAGR over 2y
Location
JARRETT PLUMBING & HEATING LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides plumbing and heating services including design, installation, maintenance and servicing of domestic heating systems. Offers gas and oil boiler servicing, breakdown repairs, oil and fuel…
Serves domestic homeowners, private clients, landlords, housing associations, public sector bodies and national housing developers across East Anglia.
Financial Health
HealthyHealthy · Hiring · 4% CAGR over 4y
Location
Fords South West Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides plumbing, heating and electrical installation, maintenance and repair services for homes and businesses, including boiler installation and servicing, electrical testing and rewiring, air…
Serves homeowners, landlords, and commercial or industrial clients in the South West of England needing property heating, plumbing, electrical, bathroom, kitchen, air conditioning and renewable…
Financial Health
StableStable · -4% CAGR over 4y
Location
ALEXANDRA HEATING SERVICES LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides installation, servicing and repair of domestic and commercial heating systems, including gas, oil and LPG boilers. Also installs air source heat pumps, solar thermal and PV systems,…
Serves domestic homeowners and commercial organisations needing heating, boiler, renewable energy and water hygiene services across Wiltshire, Hampshire and Dorset.
Financial Health
StrongStrong · Growing, Hiring · 7% CAGR over 4y
Location
RMC Mechanical Services Limited
Trajectory
2y · 2023–NowFinancial sub-scores
Computed from 2 filingsProvides mechanical and heating engineering services including installation, servicing and repair of boilers, central heating systems and plant. Installs pipework, gas systems, air conditioning,…
Financial Health
HealthyHealthy · 0% CAGR over 1y
Location
UK South Services Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides installation, maintenance and servicing of commercial heating, hot water and cooling systems, including boilers, air conditioning, refrigeration and heat pumps. Also offers BMS controls,…
Serves commercial and industrial organisations across the UK, particularly facilities and property teams responsible for heating, hot water, cooling and building compliance.
Financial Health
StableStable · 0% CAGR over 4y
Location
Hudson Plumbing & Heating Services Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides domestic and commercial plumbing and heating services including installation, servicing and repair of gas, oil and LPG boilers. Also carries out bathroom and wetroom installations,…
Serves homeowners, landlords and commercial property managers in Bristol and the South West, covering both domestic properties and workplaces requiring maintenance, emergency call-outs or…
Financial Health
StableStable · Hiring · 13% CAGR over 4y
Location
A.P. FAULKNER (HEATING) LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsInstalls and upgrades heating systems including gas boilers and air source heat pumps. Provides commercial boiler plant room upgrades, system replacements and servicing for local authorities, housing…
Serves local authorities, housing associations, private householders, and owners or managers of multi-occupancy commercial buildings, with a focus on public sector domestic housing stock.
Financial Health
HealthyHealthy · -1% CAGR over 4y
Location
R F BLOUNT & SONS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides plumbing, heating and electrical services for domestic and commercial properties, including system design, installation and maintenance. Also installs boilers and renewable energy systems…
Serves homeowners, landlords and commercial organisations, including domestic and large-scale commercial customers across Northamptonshire and surrounding counties.
Financial Health
HealthyHealthy · -3% CAGR over 4y
Location
Batemans Gas Services Limited
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsProvides plumbing and heating services including gas installations, boiler repair, system installation, heating upgrades, maintenance, and gas safety inspections. Works on commercial, industrial, and…
Serves commercial and industrial clients, shop-fitting projects, and owners or managers of large domestic properties needing gas, plumbing and heating support, with nationwide coverage stated.
Financial Health
WeakWeak · Hiring · 11% CAGR over 1y
Location
Fletchers Facilities Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides commercial and industrial mechanical and electrical engineering services, including plumbing, heating, ventilation and building services installations. Carries out preventative maintenance…
Serves property and facilities managers responsible for single or multi-site commercial, industrial and public-sector buildings, including schools, hospitals, historic properties and private…
Financial Health
HealthyHealthy · -4% CAGR over 2y
Location
Holdcroft Heating & Gas Fitting Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsInstalls, services and repairs gas, oil and LPG boilers and heating systems for domestic and commercial properties. Provides radiator and pipework installation, plumbing services, air source heat…
Serves a mix of domestic households, homeowners and landlords, alongside businesses and organisations with commercial premises needing gas and heating contractors.
Financial Health
WeakWeak · -78% CAGR over 3y
Location
TWIN SERVICES LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides mechanical, heating and plumbing contracting services for commercial buildings. Undertakes installation and maintenance of pipework, soil and waste systems, and related mechanical services…
Serves commercial and public-sector clients across North-East England, including local councils, health authorities, medical centres, nursing homes, pubs, clubs, factories, offices, the Ministry of…
Financial Health
StableStable · -5% CAGR over 4y
Location
K S Barry (Plumbing & Heating) Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides plumbing, heating and mechanical installation services for commercial construction projects, including rainwater systems, sanitaryware installation, above-ground drainage, leadwork, and…
Serves businesses and main contractors involved in commercial construction projects, including clients developing or refurbishing offices, public buildings and other non-domestic sites.
Financial Health
StableStable · -3% CAGR over 2y
Location
1ST ABOUT PLUMBING & CARPENTRY LTD
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides plumbing, gas engineering and carpentry services for commercial and residential properties. Services include leak detection and repair, boiler installation and maintenance, drainage jetting,…
Serves commercial, public-sector and residential customers across Kent, South London and the South East, including schools, local authorities, water authorities, music/theatre venues, restaurants,…
Financial Health
StrongStrong · Growing · 3% CAGR over 2y
Location
ABER HEATING ENGINEER'S LTD
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides mechanical engineering contracting services including design, installation and maintenance of commercial plumbing, heating, chilled water and ventilation systems. Also delivers boiler and…
Serves main contractors and private and public sector organisations across the UK, including businesses, schools, hospitals, colleges and universities, with commercial project requirements.
Financial Health
StrongStrong · -3% CAGR over 2y
Location
J D Geering's Plumbing & Heating Limited
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides mechanical building services installation for construction projects, including commercial and domestic plumbing and heating systems, boiler house and central plant installations,…
Serves construction industry clients needing new or refurbished mechanical services, including large-scale commercial projects and domestic developments, predominantly in London and south east…
Financial Health
WeakWeak · -13% CAGR over 2y
Location
M C K PLUMBING & HEATING ENGINEERS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides plumbing and heating installation services for domestic, commercial and residential new-build developments. Installs boilers, heat pumps and bathroom systems, and carries out heating system…
Serves homeowners, commercial premises and housebuilders/new-build developers, with domestic customers in the East Midlands and national new-build housing projects across the UK.
Financial Health
StableStable · -2% CAGR over 4y
Location
STEVE HODGINS HEATING ENGINEERS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides domestic and commercial plumbing and heating services including gas work, air conditioning installation, plumbing repairs and maintenance, landlord safety services, building maintenance,…
Serves a mix of B2C and B2B customers: homeowners, landlords and commercial clients, including organisations needing building maintenance support. Website states it has clients throughout the country.
Financial Health
HealthyHealthy · -66% CAGR over 4y
Location
Barkwell Plumbing & Heating Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides plumbing and heating installation and maintenance for residential construction projects, including underfloor heating, boiler servicing and lead work. Also installs renewable energy systems…
Serves major property developers, commercial clients, housing associations and local authorities on large-scale housing and building projects, mainly across Devon, Cornwall, Dorset and Somerset.
Financial Health
StableStable · -7% CAGR over 5y
Location
HENMAN DUNN LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides domestic and commercial plumbing and heating services, including installation, maintenance and repair of boilers, gas and LPG systems, and renewable heating technologies. Also offers…
Serves both domestic homeowners and commercial organisations requiring plumbing, heating, gas, LPG and renewable technology support, including customers needing emergency call-outs.
Financial Health
StrongStrong · Growing, Hiring · 10% CAGR over 2y
Location
R.G. TAYLOR ENGINEERING LIMITED
Trajectory
2y · 2023–NowFinancial sub-scores
Computed from 2 filingsProvides design, specification and installation of plumbing, heating and gas systems for residential and commercial construction projects. Also delivers building services fit‑out, sustainable energy…
Serves house builders, property developers and main contractors on public and private sector construction projects, spanning residential developments, commercial fit-outs and public health sector…
Financial Health
StableStable · -12% CAGR over 1y
Location
IMPERIAL MECHANICAL BUILDING SERVICES LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides mechanical pipework services for building projects, including fabrication, installation and maintenance of heating, chilled water, oil, gas and steam pipe systems, plus commercial plumbing…
Sells to building industry clients, including contractors and property developers delivering office blocks, factories, apartment blocks, council estates and education projects, mainly across London…
Financial Health
HealthyHealthy · 0% CAGR over 4y
Location
SWITCHED ON LONDON LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides plumbing, electrical, and gas heating services for residential properties, including boiler installation, repair and servicing, gas safety certificates, drainage and leak repairs, electrical…
Serves residential property owners, tenants, landlords and local businesses across South West London, including customers with homes, flats and commercial premises.
Financial Health
HealthyHealthy · Hiring · 16% CAGR over 4y
Location
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How UK plumbing and heating companies work and how to sell to them
What they do
Revenue usually comes from labour, parts and project margin, with a mix of call-out fees, hourly or day rates, fixed-price installation quotes and recurring service contracts. Domestic work is often paid per visit or per job, while commercial and public-sector accounts tend to ask for scheduled maintenance, agreed response times and paperwork that proves work was completed. Larger operators may also pass through boilers, pumps, pipework and other materials, adding margin through procurement and engineer productivity rather than software-style licence economics. Cash flow can be lumpy because installation projects, warranty work and delayed parts all pull against the steadier income from annual servicing.
Who they sell to
Most sell to a mixed buyer base: homeowners and landlords for smaller jobs, then facilities managers, estates teams, housebuilders, managing agents and procurement teams for repeat work. The decision-maker is usually practical rather than purely financial, although finance directors or commercial managers often become involved where maintenance contracts, framework agreements or multi-site service levels are being negotiated. Emergency work can be bought directly, while commercial and public-sector work is more likely to involve tenders, approved-supplier lists, insurance requirements and method statements. Typical sales motions are local reputation, referral, direct account management and facilities-management partnerships rather than a pure self-serve funnel.
What they buy
Most plumbing and heating firms tend to spend on tools that keep engineers billable and paperwork traceable: field service scheduling, job management, quoting, invoicing, payments, fleet administration, stock control and customer relationship management. Larger contractors often need workforce planning, subcontractor management, health and safety administration, document storage, mobile forms and reporting for contract reviews. Services sellers may find demand around recruitment, training, insurance, accounting, debt collection, local search marketing and tender support. Infrastructure purchases are usually practical: vehicles, workshop space, telephony, mobile devices, cloud storage and cyber security for systems that hold customer records, site notes and certificates.
Why and how to sell to them
Plumbing and heating buyers tend to evaluate suppliers when engineer utilisation, quote turnaround, missed appointments, parts availability or compliance administration starts to constrain growth. New maintenance contracts, public-sector tendering, expansion into commercial work, depot openings, hiring for office roles or a move from owner-managed scheduling to dispatcher-led operations can all signal intent. Outbound works better when it speaks to measurable operational leakage: fewer return visits, faster invoicing, clearer asset histories, cleaner evidence packs and less time spent chasing engineers for job notes. Claims about generic efficiency are weaker than examples tied to first-time fix rates, service-level reporting, cash collection or audit preparation.
How this list is built
Data sources
This list is built from UK Companies House filings, XBRL accounts data, and semantic analysis of each company's public website. Revenue and headcount figures come from the most recent filed accounts; where the company has not filed, values are estimated using a model trained on filed history and peer benchmarks and are labelled as estimates.
Classification
Rather than relying solely on SIC codes, Firmbase classifies each company semantically: the company's website is crawled, an AI model reads what the company actually sells, and the company is placed into the relevant industry and subsectors. SIC codes are used as one signal but not the only one. This means a company that registered under a generic SIC code but pivoted into (for example) fintech is correctly identified as fintech, not as its original SIC category.
Freshness
The underlying company data is refreshed from Companies House continuously; filings appear in the list within days of submission. The curated list ordering is regenerated when the underlying data moves meaningfully (company count changes by more than 5%, a new company enters the top-ranked segment, or the filed-revenue numbers for the top firms change). You can see the last-updated timestamp near the top of the page.
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