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Bolton: plumbing, heating and air-conditioning companies

Bolton has 292 plumbing, heating and air-conditioning companies (SIC 43220) and 463 electrical and other installation companies registered here (Companies House, 1 Sep 2026); 0 are MCS-certified for air-to-air yet. If the office is in BL1, summer 2026 had ≈2 nights above 18 °C there (3 times the 1991–2020 average of 0.7).

SIC 43220

Open a company

A W PLUMBING AND HEATING UK LIMITED, incorporated 2008, status Active.

Postcode districts

7 postcode districts in Bolton. Each link lists every registered office in that district.
DistrictSIC 43220SIC 43210 and 43290
BL1 100 147
BL3 60 71
BL6 39 91
BL2 28 52
BL5 28 34
BL4 27 48
BL7 10 20

Plumbing, heating and air-conditioning companies

Showing 200 of 292 SIC 43220 companies. Active offices nearest the town centre come first.
CompanyIncorporatedStatusDistrict
S.H. AIRPORT TRANSFERS LTD 2026 Active BL1
BJK PLUMBING & HEATING SERVICES LTD 2023 Active BL1
ABSOLUTE K LIMITED 2005 Active BL1
PME HEATING & PLUMBING LTD 2023 Active BL1
CLEAN AIR CONTROL LIMITED 2023 Active BL1
ECO-GAS NORTH WEST LIMITED 2014 Active BL1
IGNITE GAS GROUP LTD 2025 Active BL1
MWA ECO SYSTEMS LTD 2013 Active BL1
W.T.M. INSULATION LTD 2011 Active BL1
ADE AIRSOURCE HEAT PUMP LTD 2026 Active BL1
BOND GAS COMPANY LIMITED 2014 Active BL1
C R DUCTWORK LIMITED 2023 Active BL1
CHERRI PLUMBING AND HEATING LTD 2024 Active BL1
COLS PLUMBING & HEATING LTD 2022 Active BL1
EASIFLOW VENTILATION LIMITED 2022 Active BL1
GREEN PROVIDERS NW LIMITED 2026 Active BL1
HASTE PLUMBING LIMITED 2019 Active BL1
HMS ENERGY SERVICES LTD 2024 Active BL1
JUMA CG COMMERCIAL PLUMBING & HEATING LTD 2025 Active BL1
MISSION VENT LIMITED 2020 Active BL1
PREMIER GAS INSTALLATIONS LIMITED 2023 Active BL1
RJM DUCTWORK LTD 2026 Active BL1
RAAZ BUILDERS LTD 2025 Active BL1
M K PLUMBING LTD 2011 Active BL1
ELLESMERE ENGINEERING CO.LIMITED 1952 Active BL1
NORTH MECHANICAL LTD 2023 Active BL1
GAS PARTS DIRECT BOLTON LTD 2026 Active BL3
BEB CONSTRUCTION LTD 2024 Active BL1
ZH HEATING SERVICES LTD 2024 Active BL3
BRIDGEWATER HEATING LTD 2015 Active BL1
CELSIUS HEATING SUPPLIES LIMITED 2019 Active BL1
DW PLUMBING AND HEATING NW LTD 2021 Active BL1
GOGREEN PLUMBING AND HEATING LTD 2017 Active BL1
OVJ LIMITED 2024 Active BL1
P & P ELECTRICAL AND PLUMBING LIMITED 2024 Active BL1
GREEN NILE ENERGY SOLUTION LTD 2026 Active BL1
B BROS TILLING & PLUMBING LIMITED 2025 Active BL3
24 PLUMBING AND HEATING LTD 2019 Active BL1
FAHRENHEITGAS&HEATING LTD 2024 Active BL3
M.G.HEATING AT PLUMING LTD 2021 Active BL1
7 DAY PLUMBING SERVICES LIMITED 2010 Active BL1
AM BUILDING SERVICES (BOLTON) LTD 2024 Active BL1
MPC PLUMBING SOLUTIONS LTD 2022 Active BL1
ZAK PLUMBING AND HEATING BOLTON LTD 2022 Active BL1
MIB TRADERS LTD 2018 Active BL3
APPLY FOR ECO LTD 2024 Active BL3
IMPERIAL PLUMBING AND HEATING SOLUTIONS LTD 2016 Active BL3
YUSUF CONSTRUCTION LTD 2025 Active BL3
D J HEALD LIMITED 2010 Active BL1
PLUMBWRIGHT PLUMBING LTD 2020 Active BL1
ENEGEX LTD 2025 Active BL1
HILTON & SONS PLUMBING & HEATING LIMITED 2011 Active BL1
RELIABILITY BOILER REPAIRS WIGAN LTD 2020 Active BL1
TMW DRY RISERS LTD 2019 Active BL1
AQ SERVICES NW LTD 2019 Active BL1
CH HEATING AND BUILDING SERVICES LTD 2021 Active BL3
R&R PLUMBING & HEATING BOLTON LTD 2016 Active BL1
AMI BUILDING CONSTRUCTION LTD 2025 Active BL3
MAKIN HEATING AND PLUMBING LIMITED 2023 Active BL1
ENVIROCOOL HVAC SERVICES LTD 2016 Active BL3
M.E BOILERS LTD 2024 Active BL3
EXCEL PV & HEAT LTD 2024 Active BL3
ATLAS PLUMBING SOLUTIONS LTD 2024 Active BL1
GREEN GLOW SOLUTIONS LTD 2025 Active BL1
COMPLETE PLUMBING & GAS SERVICES LIMITED 2020 Active BL1
ULTIMATE HEATING (NW) LTD 2002 Active BL1
CS ENERGY SOLUTIONS LTD 2024 Active BL1
DALLAS BOLTON LTD 2020 Active BL1
DR HEATING & PLUMBING LTD 2026 Active BL3
DR HEATING NW LTD 2020 Active BL3
247 GASSTARS LIMITED 2025 Active BL1
COUNTY GAS SERVICES LTD 2024 Active BL1
INFINITY PLUMBING & MAINTENANCE SW LTD 2025 Active BL1
MANCHESTER MECHANICAL SOLUTIONS LTD 2025 Active BL1
NICOOL AIR LIMITED 2013 Active BL1
S E COOK LIMITED 2016 Active BL1
SDF ENERGY LTD 2025 Active BL1
STRATTON KB LTD 2024 Active BL1
24/7 RAPID FIX LIMITED 2026 Active BL3
HOME IMPROVE LTD 2023 Active BL1
SIU UTILITIES LTD 2022 Active BL1
CTSE PLUMBING & HEATING LTD 2023 Active BL3
URBAN GASCO LIMITED 2003 Active BL1
DABS PLUMBING & HEATING LTD 2019 Active BL3
BOILERWIZZ LIMITED 2020 Active BL1
CORE HEAT PLUMBING BOLTON LTD 2026 Active BL3
CHURAHI BUILDERS & SCAFFOLDERS LTD 2025 Active BL3
S LOMAX HEATING LIMITED 2009 Active BL1
IMAD BUILDERS LTD 2025 Active BL3
DOMESTIC BOILER SERVICES (NW) LIMITED 2006 Active BL1
G TAYLOR PLUMBING & HEATING LTD 2022 Active BL1
ADAM PHS LIMITED 2017 Active BL1
MEDWAY HEATING (BOLTON) LIMITED 1974 Active BL1
MOTLA CONSTRUCTION GROUP LTD 2023 Active BL3
SS HOME SERVICES LTD 2021 Active BL6
MR DADS HEATING SERVICES LIMITED 2022 Active BL3
FIRSTRESPONSE360 LTD 2019 Active BL1
NW CLIMATE SERVICE LTD 2026 Active BL3
SYNERGELEC CONSTRUCTIONS LTD 2024 Active BL3
COMPASS RENEWABLES LTD 2025 Active BL1
ABIS HEATING AND PLUMBING LTD 2023 Active BL1
DELTA VENT LIMITED 2026 Active BL3
ONPOINT TRADING LTD 2023 Active BL2
J MURPHY DUCTWORK LIMITED 2015 Active BL1
SAFE DIRECT GAS LIMITED 2021 Active BL3
COSAF ENVIRONMENTS LIMITED 1991 Active BL4
RMB PLUMBGAS LTD 2016 Active BL2
SEDDON ENGINEERING SERVICES LTD 2011 Active BL4
AA PLUMBING & HEATING NW LTD 2024 Active BL3
CLEAN AIRFLOW LTD 2026 Active BL1
PRECISION PLUMBING HEATING GAS LTD 2023 Active BL1
SUTCLIFFE PLUMBING LTD 2023 Active BL2
AASONS LIMITED 2022 Active BL3
BENCHMARK TECHNOLOGIES LIMITED 2023 Active BL3
BEROL ENERGY LTD 2024 Active BL3
D AND R GAS SERVICES LTD 2024 Active BL3
ENVIRO HEATING & PLUMBING SERVICES LTD 2002 Active BL3
REFCOOL LTD 2023 Active BL3
SJ ENERGY SOLUTIONS LTD 2026 Active BL3
AIR-QUAL LIMITED 2006 Active BL2
OLAD HEATING AND GAS LTD 2023 Active BL2
NOVAFLOW LIMITED 2017 Active BL6
M&M GAS LTD 2021 Active BL1
GOWLAND PLUMBING SERVICES LTD 2024 Active BL3
CONROY PHR LTD 2024 Active BL1
S2 HEATING & PLUMBING LIMITED 2026 Active BL1
DUCTING OF BOLTON LIMITED 2016 Active BL1
ENSOL LIMITED 1992 Active BL3
S.R. PLUMBING LTD 2004 Active BL4
AJT BATHROOMS & PLUMBING LTD 2022 Active BL6
GASCON CHS LTD. 2018 Active BL1
DG HEATING SERVICES LTD 2020 Active BL2
IAN CRILLY PLUMBING, HEATING & GAS SERVICES LTD 2009 Active BL1
PRO-BUILD PLUMBING & HEATING LIMITED 2014 Active BL5
D R DUCTWORK LIMITED 2015 Active BL1
CONAIR COOLING LTD 2022 Active BL2
J SUTCLIFFE (BOLTON) LTD 2020 Active BL2
WINSTON PROJECTS LTD 2022 Active BL4
TEK HEATING SERVICES LIMITED 2017 Active BL3
CHAHAL ENERGY SOLUTIONS LTD 2020 Active BL4
NK SHAH LTD 2024 Active BL2
PROPIPEHEATING LTD 2025 Active BL2
ECO4 MAINTENANCE SERVICES LTD 2025 Active BL4
ECO4 SOLAR INSULATION LTD 2025 Active BL4
ECO4 SOLAR SOLUTIONS LTD 2025 Active BL4
AT & SONS SERVICES AND LOGISTICS LTD 2024 Active BL2
MALONEY SOLUTIONS PLUMBING & HEATING LTD 2024 Active BL2
CONTROLLED COOLING LTD 2021 Active BL7
CJM HEATING & PLUMBING LIMITED 2023 Active BL2
AE BATHROOMS AND KITCHENS FITTERS LTD 2019 Active BL2
BRADSHAW HEATING SERVICES LTD 2011 Active BL2
REGORE GAS & PLUMBING LTD 2025 Active BL4
THE WETROOM (BATHROOM DESIGN) LTD 2014 Active BL2
DYNAMIC DRAINAGE SOLUTIONS LIMITED 2024 Active BL5
KEY PLUMBING & HEATING LIMITED 2006 Active BL2
AV UNIBRAK MIDLANDS LIMITED 2017 Active BL2
AV UNIBRAK NORTH LIMITED 2017 Active BL2
OLDFIELD BATHROOMS AND KITCHENS LIMITED 2005 Active BL6
AJW PLUMBING & HEATING LTD 2019 Active BL2
BEL AIRCONDITIONING LIMITED 2003 Active BL7
BELAIRCON LIMITED 2019 Active BL7
BOLTON PLUMBING AND HEATING LIMITED 2018 Active BL7
MAXGLOW LIMITED 1975 Active BL7
MICK WHYLIE PLUMBING & HEATING LTD 2019 Active BL7
A.N.C. VENTILATION LIMITED 2013 Active BL7
HOWORTH AIR TECHNOLOGY LIMITED 2009 Active BL5
GAS PROTECT LTD 2009 Active BL5
AMOD CONSTRUCTION LTD 2026 Active BL4
JOULE PROPERTY SERVICES LTD 2020 Active BL7
I J SMALLEY PLUMBING & HEATING LTD 2016 Active BL4
ELEMENTS MAINTENANCE LTD 2016 Active BL6
ESSENTIAL GAS SERVICES LTD 2016 Active BL6
ESSENTIAL RENEWABLE SERVICES LIMITED 2025 Active BL6
NOLAN HARDMAN & PARTNERS LIMITED 1974 Active BL6
PHOENIX HEATING PLUMBING & RENEWABLES LIMITED 2026 Active BL6
PRINCIPAL MANAGEMENT SERVICES LIMITED 2020 Active BL6
RACHEL SHORTER PLUMBING & HEATING LIMITED 2018 Active BL6
SHENFIELD PLUMBING & HEATING LTD 2016 Active BL6
BAIN PLUMBING SERVICES LTD 2006 Active BL2
ROFIX LTD 2026 Active BL4
ANDREW TOOTELL PLUMBING SERVICES LIMITED 2011 Active BL2
TW PLUMBING LTD 2018 Active BL5
A W PLUMBING AND HEATING UK LIMITED 2008 Active BL4
BOLTON PIPE SERVICES LIMITED 2003 Active BL4
CHAHAL ENERGY LTD 2023 Active BL4
DP MECHANICAL LIMITED 2015 Active BL4
GAS APPLIANCE SERVICES LIMITED 2014 Active BL4
HIGTON PLUMBING SERVICES LIMITED 2019 Active BL4
LA ENERGY SOLUTIONS LTD 2023 Active BL4
SNUG (NW) LIMITED 2000 Active BL4
PRO CATERQUIP LTD 2023 Active BL3
K2 HEATING AND COOLING SOLUTIONS LTD 2009 Active BL4
FLUX SOLAR ENERGY LIMITED 2023 Active BL5
FLUX SOLAR SOLUTIONS LIMITED 2023 Active BL5
EXCEL PHG LIMITED 2016 Active BL5
MEDMEC SERVICES LTD 2026 Active BL5
NAYLOR HVAC LTD 2022 Active BL5
ORRELL MECHANICAL LIMITED 2019 Active BL5
LENNON AC LTD 2022 Active BL2
M W PLUMBING LIMITED 2011 Active BL3

Electrical and other installation companies

Showing 100 of 463 electrical and other installation companies. Active offices nearest the town centre come first. No profile page for this SIC class.
CompanySICIncorporatedStatusDistrict
MJS GARAGE DOORS LIMITED 43290 · other construction installation 2019 Active BL1
HOMEVENT LIMITED 43210 · electrical installation 2012 Active BL1
ACOLET GLOBAL LTD 43290 · other construction installation; 43999; 78200; 87300 2011 Active BL1
BOLOHAN CONSTRUCTION LTD 43290 · other construction installation 2019 Active BL1
SPRINGFORWARD RETROFIT LTD 43290 · other construction installation 2022 Active BL1
U A ELECTRICAL LTD 43210 · electrical installation 2019 Active BL1
FIELDING BUILDING SERVICES LIMITED 43290 · other construction installation; 74909 1992 Active BL1
ACURTIS ELECTRICAL SERVICES LIMITED 43210 · electrical installation 2025 Active BL1
BOWLERS YARD SPV LIMITED 43290 · other construction installation 2025 Active BL1
CITY DEVELOPMENTS (PROJECT MANAGEMENT) LIMITED 43290 · other construction installation 2020 Active BL1
JET3 LIMITED 43290 · other construction installation 2023 Active BL1
REGIN CONSTRUCTION LIMITED 43290 · other construction installation 2021 Active BL1
REGIN GROUP LIMITED 43290 · other construction installation 2018 Active BL1
REGIN LOGISTICS LIMITED 43290 · other construction installation 2021 Active BL1
REGIN PEOPLE LIMITED 43290 · other construction installation 2021 Active BL1
ROBINSON & LOWE (ELECTRICAL) LTD 43210 · electrical installation 2011 Active BL1
AAH14 LTD 43290 · other construction installation; 47910 2022 Active BL1
MONARCH CATERING EQUIPMENT LIMITED 43290 · other construction installation; 46690 1984 Active BL1
A.CALL PROPERTY MAINTENANCE LIMITED 43290 · other construction installation 2016 Active BL1
JJH BUILDING CONTRACTORS LIMITED 43290 · other construction installation 2003 Active BL1
PCG BUILDING SERVICES LIMITED 43290 · other construction installation 2020 Active BL1
ASKWITH CONTRACTORS LTD 43290 · other construction installation 2022 Active BL1
BUOEY ELECTRICAL SERVICES & TESTING LIMITED 43210 · electrical installation 2026 Active BL1
DBAN ELECTRICAL SOLUTIONS LTD 43210 · electrical installation 2015 Active BL1
GM VENTURES LTD 43210 · electrical installation; 46900 2019 Active BL1
HANSON'S ELECTRICAL SOLUTIONS LTD 43210 · electrical installation 2026 Active BL1
HUTTON SITE LTD 43290 · other construction installation 2024 Active BL1
JOHN WOOD BRICKWORK LTD 43290 · other construction installation 2012 Active BL1
JUMA CG NETWORKS & SECURITY LIMITED 43210 · electrical installation 2025 Active BL1
LUXICA AWNINGS & PERGOLAS LTD 43290 · other construction installation 2023 Active BL1
M W S SERVICING LIMITED 43290 · other construction installation 2012 Active BL1
MATTHEWS ELECTRICAL SERVICES LIMITED 43210 · electrical installation 2002 Active BL1
MW INSTALLATIONS LTD 43290 · other construction installation 2021 Active BL1
PRESTIGE LIVING BUILDING & CONVERSION SPECIALISTS LTD 43290 · other construction installation 2026 Active BL1
RETEK CONSTRUCTION LIMITED 43290 · other construction installation 2011 Active BL1
SANT SYSTEMS LTD 43210 · electrical installation 2014 Active BL1
SECURE ACCESS SOLUTIONS LIMITED 43290 · other construction installation 2012 Active BL1
STAINLESS STEEL CAVITY TRAYS LIMITED 43290 · other construction installation 2019 Active BL1
SP ELECTRICAL SERVICES LTD 43210 · electrical installation; 74100 2018 Active BL3
DERBY FIRELEC LIMITED 43210 · electrical installation; 47190 2007 Active BL1
RADWORTH ELECTRICAL LTD 43210 · electrical installation 2012 Active BL1
WATT WATTAGE LTD 43210 · electrical installation 2012 Active BL1
FIXZIE GROUP LTD 43290 · other construction installation; 41100; 43390 2020 Active BL1
LECESTER LTD 43290 · other construction installation; 41201; 41202; 43390 2025 Active BL1
HAAMUT ELECTRICAL SERVICE LIMITED 43210 · electrical installation 2023 Active BL1
SELECT INTERIORS NW LTD 43290 · other construction installation; 43320 2026 Active BL1
ZSAIRS GROUP LTD 43210 · electrical installation; 31020; 31090 2022 Active BL1
KOWLOON DIGITAL LTD 43210 · electrical installation; 46900; 47910; 49410 2026 Active BL1
EAD ELECTRICAL LTD 43210 · electrical installation 2019 Active BL3
R & T SHEPHERD LIMITED 43210 · electrical installation 2003 Active BL1
NORAIZGONDAL LIMITED 43290 · other construction installation 2025 Active BL3
HAWTHORNE ELECTRICS NW LTD 43210 · electrical installation 2020 Active BL3
ECP ELECTRICAL SERVICES LTD 43210 · electrical installation 2022 Active BL1
G. MCGREAVY ELECTRICAL & SECURITY LIMITED 43210 · electrical installation; 80200 2013 Active BL1
BLOCK PAVING LIMITED 43290 · other construction installation; 43999; 81300 2025 Active BL3
JAX GROUP NORTH WEST LTD 43210 · electrical installation 2020 Active BL1
ORBA ELECTRICAL LTD 43210 · electrical installation; 43310 2021 Active BL1
EG R&R LTD 43290 · other construction installation 2025 Active BL1
J CURLISS ELECTRICAL LTD 43210 · electrical installation 2017 Active BL1
L W TURTON LIMITED 43290 · other construction installation; 43320; 43390; 43910 2019 Active BL1
UK NATIONAL ECO LTD 43290 · other construction installation; 43390 2023 Active BL1
GK HARDFLOOR SOLUTIONS LTD 43290 · other construction installation 2026 Active BL3
SV AUTOMATIONS LIMITED 43210 · electrical installation 2025 Active BL3
RZEE BUILDERS LTD 43210 · electrical installation; 41202; 43310; 43390 2024 Active BL1
SAFE ELECTRICAL TESTING LTD 43210 · electrical installation 2010 Active BL3
BOLTON STEEL STRUCTURES LIMITED 43290 · other construction installation 2012 Active BL1
ORRELL STEELWORK LIMITED 43290 · other construction installation 2019 Active BL1
BS CREATIVE LTD 43290 · other construction installation 2026 Active BL3
AF ELECTRICIANS LIMITED 43210 · electrical installation; 43290 · other construction installation 2026 Active BL3
MO&MA LTD 43290 · other construction installation; 43390; 43999 2024 Active BL3
ALMUTRAF FOR INVESTMENT LTD 43290 · other construction installation; 47990; 56102; 73110 2025 Active BL3
STEP TOWARDS PROFESSIONALISM IN TRADE AND INVESTMENT LTD 43290 · other construction installation; 47990; 56102; 73110 2025 Active BL3
KDA FLOORS LTD 43290 · other construction installation 2024 Active BL3
ZAWIANS CONSTRUTORS LTD 43290 · other construction installation; 41202; 46160 2025 Active BL3
R C ELECTRICAL & BUILDING SERVICES LTD 43210 · electrical installation; 41100 2002 Active BL1
AMPEX ELECTRICIANS 24/7 LTD 43210 · electrical installation; 33140 2023 Active BL3
INFINITE EV LTD 43210 · electrical installation 2022 Active BL3
INFINITE TECHNOLOGY SERVICES LTD 43210 · electrical installation 2025 Active BL3
MFP ELECTRICAL CONTRACTORS LTD 43210 · electrical installation 2016 Active BL3
T&S ELECTRICAL SERVICES LTD 43210 · electrical installation; 47190 2023 Active BL1
VV & K CONSTRUCTION LIMITED 43210 · electrical installation; 43290 · other construction installation; 41202 2022 Active BL3
RES CONTRACTS LTD 43210 · electrical installation 2023 Active BL1
ATLAS ELECTRICS LTD 43210 · electrical installation 2024 Active BL1
DUCTWORK INSTALLATION SERVICES LTD 43290 · other construction installation 2022 Active BL1
G JONES ELECTRICAL LIMITED 43210 · electrical installation 2024 Active BL1
MUKHTAR BUILDING SERVICES LTD 43290 · other construction installation; 41202; 43310 2025 Active BL1
A T M (ELECTRICAL & BUILDING SERVICES) LTD 43210 · electrical installation 2005 Active BL1
JLJ ELECTRICAL CONTRACTORS LIMITED 43210 · electrical installation 2013 Active BL1
MAAS LIMITED 43210 · electrical installation 2018 Active BL1
TOPPTEK LIMITED 43210 · electrical installation 2025 Active BL1
ENTEK DOOR SYSTEMS LIMITED 43290 · other construction installation 2013 Active BL1
CHARGEFIX LTD 43210 · electrical installation; 33140 2025 Active BL1
TOTAL CONCEPTS (BOLTON) LTD 43210 · electrical installation; 43320; 43910 2026 Active BL3
MK BUILDINGS & CONSTRUCTION LTD 43290 · other construction installation; 43999 2024 Active BL1
ARC RENEWABLES LTD. 43210 · electrical installation; 42220; 61900 2020 Active BL1
B DANIELS LIMITED 43210 · electrical installation 2002 Active BL1
BISHOP ELECTRICAL SERVICES LTD 43210 · electrical installation 2023 Active BL1
BRADSHAWS ELECTRICAL SERVICES LTD 43210 · electrical installation 2025 Active BL1
CENTRAL HEATING HUB WEST MIDLANDS LTD 43290 · other construction installation 2022 Active BL1
CHAPEL ELECTRICAL SERVICES LTD 43210 · electrical installation 2023 Active BL1

Heat and planning around Bolton

In Bolton last summer (2026) there were ≈1.9 nights that stayed above 18 °C — 3 times the 1991–2020 average of 0.6 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities). The figure is the household-weighted mean of 7 postcode districts where these offices are registered.

6% of sampled postcodes in Bolton sit in a conservation area (7,460 live postcodes across 7 districts).

In England an air-source heat pump on a house can be permitted development under Class G when the conditions hold, including the MCS 020a noise limit of 37.0 dB(A) (§3.2 Step 8).

Companies House snapshot 1 Sep 2026, retrieved 25 Sep 2026. The address shown is the registered office, not a verified operating base. This catalogue is a directory of incorporated businesses, not an exhaustive installer register. Hot nights: ERA5-ARCO, June–August, minimum at or above 18 °C, household-weighted across the districts where these offices are registered, retrieved 25 Sep 2026. Conservation-area share: sampled postcode points, snapshot 25 Sep 2026. Distances are an equirectangular approximation to 0.1 km.

Better than a town directory that only lists names: each plumbing company links to its Companies House record and the local hot-night count.

Report an error in these figures