Construct365 rankings

UK Construction League Tables

Our own rankings of the UK's leading contractors, architects, consultants and housebuilders — ranked live by filed-accounts turnover, with a full SIC-code directory alongside.

Paid promotion never affects ranking position. League-table positions are based solely on financial figures (turnover or net worth); promoted businesses are highlighted visually but ranked exactly like everyone else.

Beta: League table data is still being populated and verified during beta — rankings and financial figures may be incomplete and will improve as we add more companies.

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Plumbing & HVAC

Industry lists:Contractors 100Top 100 ContractorsArchitects 100Top 100 ArchitectsConsultants 150Top 150 ConsultantsHousebuilders 50Top 50 HousebuildersContractors & HB 150Top 150 Contractors & HousebuildersPlant Hirers 100Top 100 Plant Hirers

Top 3 — Annual Turnover

Full Rankings — Annual Turnover

78 companies

Rows marked with show figures sourced from Companies House filed accounts.

#			Reg No.		Previous Period		Year End	Status
🥇	TCLARKE CONTRACTING LIMITED ltdTclarke.co.uk	London	00189434	£846.7m Estimated	—	—	—	active
🥈	DALKIA GROUP LIMITED ltdEssc-india.org	London	09752439	£656.6m Estimated	—	—	—	active
🥉	OCS FM LIMITED ltdOcs.co.uk Contractors & HB 150 #65	Ipswich	00806888	£333.0m Estimated	—	—	—	active
4	GRATTE BROTHERS GROUP LIMITED ltdGratte.com Contractors & HB 150 #79	London	02732546	£242.5m Estimated	—	—	—	active
5	DALKIA ENGINEERING LIMITED ltdImtech.co.uk	Nottingham	00443522	£234.3m Estimated	—	—	—	active
6	DODD GROUP (MIDLANDS) LIMITED ltdDoddgroup.com Contractors & HB 150 #82	Shropshire	01179878	£160.8m Estimated	—	—	—	active
7	JOSEPH GALLAGHER GROUP LIMITED ltdJosephgallagher.co.uk	Orsett	03792735	£135.9m Estimated	—	—	—	active
8	BRIGGS & FORRESTER ENGINEERING SERVICES LIMITED ltdBriggsandforrester.co.uk	Kingsthorpe	01106549	£124.3m Estimated	—	—	—	active
9	HOUSING MAINTENANCE SOLUTIONS LIMITED ltdHousingmaintenancesolutions.org	St. Helens	07237932	£121.6m Estimated	—	—	—	active
10	THE BARNES GROUP LIMITED ltdbarnesconstruction.co.uk	Ipswich	01359667	£117.5m Estimated	—	—	—	active
11	TILBURY DOUGLAS ENGINEERING LIMITED ltdInterserve.com	London	03044398	£110.5m Estimated	—	—	—	active
12	LORNE STEWART PLC plclornestewart.co.uk Contractors & HB 150 #139	Harrow	01348218	£106.7m Estimated	—	FY2023	—	active
13	J C A ENGINEERING LTD ltdJca.co.uk	London	04433957	£104.0m Estimated	—	—	—	active
14	BRIGGS & FORRESTER LIVING LIMITED ltdCombinedenergysolutions.com	Kingsthorpe	01867941	£103.4m Estimated	—	—	—	active
15	DERRY BUILDING SERVICES LIMITED ltdDerry-bs.co.uk	Newark	01481063	£80.2m Estimated	—	—	—	active
16	BRITISH GAS SOCIAL HOUSING LIMITED ltdPhjones.co.uk	Windsor	01026007	£77.7m Estimated	—	—	—	active
17	IRWIN M&E LIMITED ltdIrwinelectrical.com	Craigavon	NI036731	£76.1m Estimated	—	—	—	active
18	BANCROFT LIMITED ltdBancroft.uk.com	London	02907123	£69.6m Estimated	—	—	—	active
19	BJF CONNECTIONS LTD ltdBjfconnections.co.uk	Maidstone	06056699	£68.5m Estimated	—	—	—	active
20	THE CASTLE BUILDING SERVICES ORGANISATION LIMITED ltdcastlebs.co.uk	Hebburn	08331581	£66.3m Estimated	—	—	—	active
21	MAYA5 LTD ltdGlostermep.co.uk	London	09371849	£60.6m Estimated	—	—	—	active
22	SMITH AND BYFORD LIMITED ltdSmithandbyford.com	Sutton	01074356	£58.5m Estimated	—	—	—	active
23	MICHAEL NUGENT LTD ltdMichaelnugent.co.uk	Co Tyrone	NI040434	£56.8m Estimated	—	—	—	active
24	MUNRO BUILDING SERVICES LIMITED ltdMunrobuildingservices.co.uk	Belper	02554373	£56.1m Estimated	—	—	—	active
25	EAST WEST GROUP LIMITED ltdChaswest.co.uk	Chelmsford	05839797	£55.3m Estimated	—	—	—	active
26	GEOFFREY ROBINSON LIMITED ltdGeoffreyrobinson.co.uk	Billingham	01042638	£53.5m Estimated	—	—	—	active
27	STOTHERS (M. & E.) LIMITED ltdStothersm-e.co.uk	Ravenhill Avenue	NI024313	£53.4m Estimated	—	—	—	active
28	DODD GROUP (EASTERN) LIMITED ltdDoddgroup.com	Shropshire	02842232	£53.2m Estimated	—	—	—	active
29	C WATKINS PLUMBING LIMITED ltdWatkins-group.co.uk	Ramsgate	05399944	£50.7m Estimated	—	—	—	active
30	EAST WEST CONNECT LIMITED ltdEastwestconnect.com	Chelmsford	02321487	£50.3m Estimated	—	—	—	active
31	EJ PARKER TECHNICAL SERVICES (CENTRAL) LTD ltdWtparker.co.uk	Staffordshire	01270585	£49.2m Estimated	—	—	—	active
32	AMEON LIMITED ltdAmeon.co.uk	Blackpool	03167223	£45.3m Estimated	—	—	—	active
33	GLOSTER MEP LIMITED ltdGlostermep.co.uk	Tunbridge Wells	07769221	£45.2m Estimated	—	—	—	active
34	ARTIC BUILDING SERVICES LIMITED ltdArticbuildingservices.com	London	03529819	£43.1m Estimated	—	—	—	active
35	THE JAMES MERCER GROUP LIMITED ltdJamesmercergroup.co.uk	Ashton On Ribble, Preston	03917286	£42.3m Estimated	—	—	—	active
36	ARC GROUP LONDON LIMITED ltdArcgroupuk.com	Upper Edmonton	05536599	£42.1m Estimated	—	—	—	active
37	POLYTECK BUILDING SERVICES LIMITED ltdPolyteck.co.uk	London	05498728	£42.0m Estimated	—	—	—	active
38	DODD GROUP (SOUTH) LIMITED ltdDoddgroup.com	Shropshire	01486338	£41.7m Estimated	—	—	—	active
39	HEB GROUP UK LTD ltdHebarnes.com	Sheffield	02793873	£37.3m Estimated	—	—	—	active
40	WYSEPOWER LIMITED ltdWysegroup.co.uk	Frodsham	05379085	£34.2m Estimated	—	—	—	active
41	CORRIGENDA LIMITED ltdChurches.co.uk	London	03920337	£33.6m Estimated	—	—	—	active
42	STONEGROVE LTD. ltdStonegrove.co.uk	Kent	01228559	£30.2m Estimated	—	—	—	active
43	AIRA HOME UK LTD ltdAirahome.com	Stretford	14146166	£30.1m Estimated	—	—	—	active
44	CHC GROUP LIMITED ltdChcltd.com	Co.Armagh	NI007500	£29.2m Estimated	—	—	—	active
45	SURESERVE ENERGY SERVICES NORTH LIMITED ltdDysonenergyservices.co.uk	London	01956726	£28.7m Estimated	—	—	—	active
46	PLATINUM FACILITIES & MAINTENANCE SERVICES LIMITED ltdPfms.co.uk	Fareham	00936149	£27.9m Estimated	—	—	—	active
47	INFINITY RENEWABLES GROUP LTD. ltdInfinity-renewables.com	Crawley	11154487	£27.4m Estimated	—	—	—	active
48	PAINE MANWARING LIMITED ltdPainemanwaring.co.uk	Worthing	02739418	£25.7m Estimated	—	—	—	active
49	PRIMECH BUILDING SERVICES LIMITED ltdPrimechservices.com	Gillingham	09400686	£25.6m Estimated	—	—	—	active
50	ARC-TECH (SCOTLAND) LIMITED ltdC-c-g.co.uk	United Kingdom	SC127099	£25.0m Estimated	—	—	—	active
51	KIRKMAN AND JOURDAIN CONSTRUCTION LIMITED ltdKirkmanandjourdain.com	Waltham Abbey	11119670	£24.6m Estimated	—	—	—	active
52	NEIL SHACKLOCK PLUMBING AND HEATING CONTRACTORS LIMITED ltdShacklocks.com	Brierley Park Close Stanton Hill	00929449	£23.0m Estimated	—	—	—	active
53	BTU (INSTALLATION & MAINTENANCE) LIMITED ltdBtu-installation.com	Surrey	01561231	£23.0m Estimated	—	—	—	active
54	HEWER FACILITIES MANAGEMENT LIMITED ltdHewerfm.co.uk	Cheltenham	05832269	£22.5m Estimated	—	—	—	active
55	DLP SERVICES (NORTHERN) LIMITED ltdDlpservices.com	Pendleton Salford	02650749	£22.4m Estimated	—	—	—	active
56	MORRISON FACILITIES SERVICES LIMITED ltdMearsgroup.co.uk	Motherwell	SC120550	£22.1m Estimated	—	—	—	active
57	NRT BUILDING SERVICES GROUP LIMITED ltdN-r-t.com	Banstead	03229578	£21.8m Estimated	—	—	—	active
58	ASHLEY & MCDONOUGH LIMITED ltdTheamgroup.co.uk	London	05426731	£20.9m Estimated	—	—	—	active
59	ROBERTS & PROWSE (SWINDON) LIMITED ltdRobertsandprowse.com	Exeter	03834098	£19.6m Estimated	—	—	—	active
60	GB ELECTRICAL AND BUILDING SERVICES LTD ltdGbhereford.co.uk	Hereford	05392639	£19.1m Estimated	—	—	—	active
61	SHIELD MECHANICAL ELECTRICAL & FACILITIES SERVICES LTD ltdShieldenvironmental.co.uk	Bristol	09748445	£18.1m Estimated	—	—	—	active
62	ALPINE WORKS LIMITED ltdAlpineworks.co.uk	London	04412871	£17.9m Estimated	—	—	—	active
63	EJ PARKER TECHNICAL SERVICES (SCOTLAND NORTH) LTD ltdKorrie.co.uk	Inverness	SC386013	£17.9m Estimated	—	—	—	active
64	DERRY LIMITED ltdDerryltd.co.uk	Newark	04597236	£17.9m Estimated	—	—	—	active
65	GMR HENDERSON BUILDERS LTD ltdGmrhenderson.co.uk	Wick	SC337487	£17.7m Estimated	—	—	—	active
66	VIABL LTD ltdAble-group.co.uk	Leigh-On-Sea	11955942	£16.8m Estimated	—	—	—	active
67	REDWORX MEP LIMITED ltd	London	15205241	£16.8m Estimated	—	—	—	active
68	NEPTUNE BUILDING SERVICES LTD ltdNeptunebs.co.uk	Gloucester	01810549	£16.7m Estimated	—	—	—	active
69	WATT ENERGY SAVER LTD ltdWattenergysaver.co.uk	Newark	07511276	£16.5m Estimated	—	—	—	active
70	GRANTS (DUFFTOWN) LIMITED ltdForsyths.com	Aberlour	SC031694	£16.4m Estimated	—	—	—	active
71	CAPRI MECHANICAL SERVICES LIMITED ltdCaprimechanical.co.uk	Essex	01160845	£15.1m Estimated	—	—	—	active
72	VALLECTRIC (HOLDINGS) LIMITED ltdVallectric.co.uk	Leeds	05846208	£12.7m Estimated	—	—	—	active
73	VALLECTRIC LIMITED ltdVallectric.co.uk	Leeds	00639416	£12.7m Estimated	—	—	—	active
74	JPR MECHANICAL AND ELECTRICAL SERVICES LIMITED ltdJpr-engineering.com	Staffordshire	01087200	£11.7m Estimated	—	—	—	active
75	WRIGHT BUILD LTD. ltdWrightbuild.org.uk	Preston	01401191	£10.7m Estimated	—	—	—	active
76	SPOKEMEAD MAINTENANCE LIMITED ltdSpokemead.co.uk	London	05122953	£10.2m Estimated	—	—	—	active
77	PLUMB4U HEATING AND PLUMBING SERVICES LIMITED ltdplumb4u.net	Surbiton	07633196	£596k Filed accounts	—	FY2025	—	active
78	LAL PLUMBING AND HEATING LTD ltd	Chigwell	14830920	£55k Filed accounts	—	FY2025	—	active

422 companies without financial data (not ranked)

DALKIA LTD

London

12014717

TCLARKE PLC

London

00119351

DALKIA UK HOLDING LIMITED

London

09752551

INTEGRAL UK LIMITED

London

05307588

BRIGGS & FORRESTER GROUP LIMITED

Northampton

04342869

COMFORT COOLING LTD

East Grinstead

13681981

GALXC FM SERVICES LTD

Southampton

06021424

M.G.S. BUILDING & ELECTRICAL CONTRACTORS LIMITED

Southampton

02265366

GULLIVER PLUMBING HEATING & ELECTRICAL LIMITED

East Drayton

06232972

MELANE LIMITED

Wiltshire

05440121

AFR AIR CONDITIONING LIMITED

Swindon

04385215

ARESPONSE PLUMBING AND HEATING LIMITED

Croydon

05251080

SOUTHERN COUNTIES HEATING & PLUMBING LTD

Southsea

03739939

MFM AIRCONDITIONING LIMITED

Bristol

04192934

CCS AIR CONDITIONING LIMITED

Maldon

05635536

SWINNEY & OSBORNE CARPENTRY SERVICES LTD

Bristol

04068111

EILBECK HEATING & PLUMBING LTD

Cleator Moor

04981266

S CURRELL PLUMBING & HEATING LTD

Cleveland

04885624

EAST LOTHIAN PLUMBING & HEATING LTD.

East Lothian

SC255482

ENERGIZING TOMORROW'S TECH LTD

Doncaster

16557937

ROBERT R MCGOWAN LTD.

Hereford

05841593

DEVONSHIRE THERMAL INSULATIONS LTD

Wirral

04113341

MALCOLM MCARTHUR & SON LIMITED

United Kingdom

SC173168

DV MAINTENANCE LIMITED

Huntingdon

05604398

CHARACTER DATA LIMITED

Cheadle

03190367

MARSHALLS (PLUMBING AND BUILDING DEVELOPMENT ) LIMITED

Solihull

03701712

NORDLI PLUMBING & HEATING LTD

York

07093154

R T B PLUMBING & HEATING LIMITED

Cannock

07297885

HOWARD RUSSELL ELECTRICAL & PLUMBING LIMITED

North Yorkshire

04748023

AQUA PLUMBING & HEATING SERVICES LTD

Walsall

04121404

CURTIS & CARDER SERVICES LIMITED

Bicester

05769244

PRO-ACTIVE MECHANICAL & ELECTRICAL MAINTENANCE LTD.

Seaton

05281887

ACELUX LIMITED

Billericay

07296658

CAVENDISH PLUMBERS LIMITED

Cardiff

06872975

GARY WALTER PLUMBING AND HEATING LIMITED

Oxford

03861570

D M SUDDABY LIMITED

Grantham

04900357

PLASTIC SHOWER SPECIALISTS LIMITED

Hull

05440985

PETER NORTON PLUMBING, HEATING & GAS SERVICES LIMITED

Beverley

04408119

LAKER HOMECARE SOLUTIONS LIMITED

Birmingham

04789124

P RICHARDSON DOMESTIC SERVICES LIMITED

Galgate

07192943

ANDREW LOCKE (PLUMBING, HEATING & TILING CONTRACTORS) LIMITED

Huddersfield

04213066

L B P PLUMBING AND HEATING LIMITED

Letchworth Garden City

05738572

V C L PLUMBING LIMITED

United Kingdom

SC210914

FALLON & DAVIES LTD

Barrow-In-Furness

07372949

MEEL GROUP (BUILDING SERVICES) LIMITED

Newcastle

04260685

M CULLING MECHANICAL SERVICES LIMITED

Norwich

04682520

L & S PLUMBING LIMITED

Vale Road

04842278

PEERS REFRIGERATION LIMITED

Manchester

06136072

D.S.R. MECHANICAL SERVICES LIMITED

Fareham

04641636

SCOTCHWELL LTD

London

04277250

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