Southampton: plumbing, heating and air-conditioning companies

Southampton has 348 plumbing, heating and air-conditioning companies (SIC 43220) and 599 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 SO19, summer 2026 had ≈7 nights above 18 °C there (5 times the 1991–2020 average of 1.3).

SIC 43220

Open a company

A & D PLUMBING AND HEATING (HAMPSHIRE) LIMITED, incorporated 2022, status Active.

Postcode districts

15 postcode districts in Southampton. Each link lists every registered office in that district.
District	SIC 43220	SIC 43210 and 43290
SO19	47	87
SO16	47	60
SO14	44	73
SO15	42	63
SO31	40	64
SO40	32	58
SO30	31	59
SO32	18	38
SO18	16	41
SO45	14	25
SO52	8	8
SO17	5	14
SO53	3	3
SO50	1	4
SO51	0	1

Plumbing, heating and air-conditioning companies

Showing 200 of 348 SIC 43220 companies. Active offices nearest the town centre come first.
Company	Incorporated	Status	District
NATIONWIDE RENOVATION & MAINTENANCE LTD	2024	Active	SO14
VOYTEK PLUMBING AND HEATING LTD	2013	Active	SO19
BRAESIDE PROPERTY SERVICES LIMITED	2010	Active	SO19
MAYNARDS SERVICES LIMITED	2019	Active	SO18
WEST END GAS LIMITED	2026	Active	SO19
MIKES PLUMBING & HEATING LTD	2009	Active	SO19
BRENNAN PLUMBING & HEATING LIMITED	2007	Active	SO18
SAFETY GAS LTD	2014	Active	SO19
EVERSTRONG DEVELOPMENTS LIMITED	2026	Active	SO14
K BARBER CONSULTING LTD	2014	Active	SO19
RENDERS WORLD LTD	2016	Active	SO14
GAS AND WATER EXPERTS LIMITED	2023	Active	SO14
RJK PLUMBERS LTD	2022	Active	SO19
AIR COOL MECHANICAL SERVICES LTD	2018	Active	SO19
DISBUDAK PLUMBER AND PIPING LTD	2020	Active	SO14
LB MECHANICAL SOLUTIONS LTD	2020	Active	SO19
R & R PLUMBING LTD	2010	Active	SO19
TRIDENT GAS LIMITED	2024	Active	SO19
ZEBRA GAS LTD	2020	Active	SO19
M & R AIRFLOW LIMITED	2002	Active	SO19
MACH CARGO LTD	2016	Active	SO14
SOUTH COAST GAS LTD	2023	Active	SO14
A J L MECHANICAL LTD	2016	Active	SO14
A1 COMPLETE PLUMBING & HEATING LTD	2007	Active	SO14
T AIR LTD	2020	Active	SO14
CUTLER HOME SOLUTIONS LTD	2017	Active	SO19
ANCHOR AIR LIMITED	2014	Active	SO14
ANCHOR MAINTENANCE LIMITED	2020	Active	SO14
ANCHOR PIPEWORK LIMITED	2013	Active	SO14
ANCHOR RAIL LIMITED	2017	Active	SO14
ANCHOR REAL ESTATE LIMITED	2017	Active	SO14
SOLO GROUP (SOUTH) LIMITED	2023	Active	SO14
BANO WASHROOM LTD	2021	Active	SO19
DRAIN RESCUE LIMITED	2016	Active	SO15
HOT HOUSE HEATING LIMITED	2022	Active	SO15
LURANCO MECHANICAL LTD	2026	Active	SO14
EMIT HEAT LIMITED	2023	Active	SO15
PRIORITY COOLING LTD	2012	Active	SO18
CIRCUIT PLUS ELECTROMECHANICALCONTRACTING LTD	2024	Active	SO14
FLOW TECH DRAINAGE LIMITED	2024	Active	SO14
N BROWN PLUMBING & HEATING LTD.	2001	Active	SO14
RUSSELL DRAINAGE SERVICES LIMITED	2006	Active	SO14
THINK GAS HEATING AND COOLING LTD	2025	Active	SO19
J.GULLIVER PLUMBING AND HEATING LIMITED	2024	Active	SO14
HEATWORKS HEATING LIMITED	2011	Active	SO19
CALDAV LTD	2026	Active	SO19
GRIDPAY NETWORKS LTD	2025	Active	SO17
AIR CONDITIONING SERVICES (SOUTH) LIMITED	2010	Active	SO17
GREEN DREAM CONSTRUCTION & ELECTRICAL LTD	2025	Active	SO19
DJ HELPS GAS SERVICES LTD	2024	Active	SO14
ELAN-DRAGONAIR LIMITED	1998	Active	SO14
HORTON HEATING LIMITED	2012	Active	SO14
KJT PLUMBING SERVICES LIMITED	2026	Active	SO14
MICHAEL TODD PLUMBING & HEATING LTD	2006	Active	SO14
WESSEX REFRIGERATION LTD	2024	Active	SO14
4MC SERVICES LTD	2019	Active	SO14
D JONES PLUMBING AND HEATING LIMITED	2014	Active	SO14
GLC PLUMBING & HEATING LTD	2012	Active	SO18
A & M BUILDING & HOME ADAPTION SPECIALISTS LIMITED	2026	Active	SO19
GHP SOUTH LTD	2017	Active	SO19
MCCARTHY INTERIORS LIMITED	2020	Active	SO14
WESTOAK PLUMBING LTD	2020	Active	SO18
PINFOLDS MECHANICAL LTD	2017	Active	SO18
HAMPSHIRE HEAT SOLUTIONS LTD	2026	Active	SO19
LGC PLUMBING & HEATING LTD	2019	Active	SO19
SOUTHERN MULTI TRADE LTD	2026	Active	SO19
TIP TOP PLUMBING HEATING AND GAS SERVICES LTD	2024	Active	SO19
BLUE DIAMOND HEATING SERVICES LIMITED	2017	Active	SO18
GW GAS LTD	2015	Active	SO19
COOL4HEAT SOLUTIONS LTD	2024	Active	SO19
PHC SOUTHAMPTON LTD	2020	Active	SO19
TIDAL PLUMBING AND HEATING LIMITED	2017	Active	SO19
CH4 SERVICES LIMITED	2014	Active	SO19
INPUT BATHROOMS LIMITED	2019	Active	SO18
L D L PLUMBING & HEATING LTD	2021	Active	SO15
CHILOR GROUP LTD	2020	Active	SO19
INNER HEAT LTD	2022	Active	SO19
EMERGENCY PLUMBING AND DRAINAGE LTD	2026	Active	SO15
H HEATING AND PLUMBING LTD	2026	Active	SO18
FOCAL HEAT LTD	2024	Active	SO15
PYROFUSION LIMITED	2025	Active	SO19
M CURTIS GAS SERVICES LIMITED	2019	Active	SO18
PRIMAL BUILDING SERVICES LTD	2024	Active	SO19
DESIGNING AND BUILDING LIMITED	2026	Active	SO17
HIWAPLUMBING LTD	2026	Active	SO19
SOUTHERN PROPERTY MAINTENANCE LTD	2020	Active	SO19
RADIANT GAS SERVICES LTD	2020	Active	SO30
LS MECHANICAL BUILDING SERVICES LTD	2024	Active	SO19
PREMISE PROPERTY MAINTENANCE LIMITED	2006	Active	SO15
M D JONES PLUMBING AND HEATING LTD	2023	Active	SO18
CONSTRUCTIONS MAX LTD	2017	Active	SO18
GASSED UP HEATING LTD	2021	Active	SO19
BROOKFIELD HEATING LTD	2025	Active	SO15
HANNAN PLUMBING & HEATING LTD	2018	Active	SO15
LHD VENTILATION LTD	2014	Active	SO15
TETRA LTD	2021	Active	SO19
L A PLUMBING AND HEATING LIMITED	2025	Active	SO15
ABLE PLUMBING AND DRAINAGE LIMITED	2025	Active	SO15
HORUS MECHANICAL LTD	2021	Active	SO15
SHR TRADING LTD	2025	Active	SO16
HEATCOMP LIMITED	2014	Active	SO15
GASWARM HEATING AND MECHANICAL LTD	2018	Active	SO19
DAVID EBBS PLUMBING AND HEATING LTD	2025	Active	SO30
RHENDRA MECHANICAL SERVICES LTD	2025	Active	SO16
ZEN HEATING LTD	2024	Active	SO16
2 WALK IN LTD	2021	Active	SO15
MTV PLUMBING AND HEATING LTD	2019	Active	SO19
DT04 GAS LTD	2018	Active	SO19
SSB GAS LIMITED	2025	Active	SO15
R J MONK PLUMBING & HEATING LIMITED	2002	Active	SO15
VINA REFRIGERATION LTD	2023	Active	SO16
PJ PLUMBING HEATING & ELECTRICAL LTD	2014	Active	SO30
UKB PLUMBING LTD	2024	Active	SO16
GOSOUTH GAS LTD	2013	Active	SO15
HAMPS PLUMBING & HEATING LIMITED	2023	Active	SO16
CROWN HEATING & PLUMBING LIMITED	2016	Active	SO16
COLES PLUMBING AND HEATING LTD	2025	Active	SO30
AUSTIN HEATING LTD	2019	Active	SO15
CASTLEWAY LIMITED	1994	Active	SO15
JP PLUMBING & HEATING CONSULTANTS LIMITED	2005	Active	SO15
KEN THE PLUMBER LTD	2011	Active	SO15
NOVA PLUMBING AND HEATING LTD	2008	Active	SO15
SERVICE HEATING AND BATHROOMS LTD	2018	Active	SO15
SOUTHERN HEAT SOLUTIONS LTD	2016	Active	SO15
UNITED GAS HEATING AND PLUMBING LIMITED	2020	Active	SO15
WELLAND VALLEY GAS SERVICES LIMITED	2002	Active	SO15
S.N.G. MECHANICAL LIMITED	2006	Active	SO16
TG MARINE PLUMBING SOLUTIONS LTD	2024	Active	SO31
RPDRV LIMITED	2015	Active	SO15
SMITH & WEBB LIMITED	1998	Active	SO15
AEROTHERM SOLUTIONS LIMITED	2025	Active	SO16
PLATINUM PLUMBING & HEATING ENGINEERS LIMITED	2007	Active	SO31
J. & D. HUMPHREY LIMITED	2002	Active	SO30
WATER WIZARDS PLUMBING & HEATING LTD	2024	Active	SO16
RP HEATING SOLUTIONS LTD	2020	Active	SO15
BILLS BOILERS LTD	2020	Active	SO16
CF HEATING LIMITED	2014	Active	SO30
MAG PLUMBING AND HEATING LIMITED	2009	Active	SO30
MANSER GROUP LTD	2019	Active	SO15
SYNERGY PLUMBING, HEATING & RENEWABLES LTD	2021	Active	SO15
MF PLUMBING SOLUTIONS LTD	2025	Active	SO16
MEKKMASTER BOILER REPAIR LTD	2025	Active	SO31
BARNETT PLUMBING AND HEATING LIMITED	2004	Active	SO30
DIZ GAS LTD	2011	Active	SO16
ROSCO GAS LTD	2019	Active	SO15
CITY PLUMBING & HEATING SOUTHERN LTD	2021	Active	SO30
ALFORD PLUMBING & HEATING LTD	2007	Active	SO31
RFW LTD	2004	Active	SO31
SMH PLUMBING AND HEATING LTD	2020	Active	SO31
RAB PLUMBING & HEATING SERVICES LTD	2025	Active	SO15
MPH SOUTH LTD	2026	Active	SO16
AIC HEATING AND PLUMBING SERVICES LTD	2024	Active	SO31
DUALZONE LTD	2026	Active	SO16
R WILSON SERVICES LIMITED	2003	Active	SO30
FOREST PLUMBING & HEATING LIMITED	2014	Active	SO45
WATERSIDE PLUMBING AND HEATING LIMITED	2003	Active	SO45
SCS DORSET LIMITED	2019	Active	SO16
R J GALE LIMITED	2006	Active	SO30
LLC PLUMBING & HEATING LTD	2020	Active	SO31
ELITE AIR HANDLING UNIT & HEAT EXCHANGER SPECIALISTS LTD	2020	Active	SO30
DMP PLUMBING & HEATING LIMITED	2018	Active	SO30
J TALBOT PLUMBING&HEATING LTD	2021	Active	SO16
CEI ELECTRICAL SERVICES LTD	2022	Active	SO30
TC MCCLATCHEY PLUMBING & HEATING LIMITED	2011	Active	SO45
BAM MECHANICAL LIMITED	2024	Active	SO16
PURER AIR LIMITED	2026	Active	SO16
S & J HEATING & COOLING LTD	2026	Active	SO30
ADVANCED WATER SOFTENERS LIMITED	2003	Active	SO30
VICTORIA PLUMBING & BATHROOM SOLUTIONS LTD	2025	Active	SO30
THB PLUMBING & HEATING LTD	2024	Active	SO31
AFTERGLOW HEATING LIMITED	2017	Active	SO30
JAS HANDY SOLUTION LTD	2023	Active	SO16
JPS PLUMBING SOLUTIONS LTD	2022	Active	SO16
WEST GAS HEATING SERVICES LTD	2019	Active	SO30
JGM COMMERCIAL LTD	2023	Active	SO45
SOUTHERN WETROOMS LTD	2020	Active	SO30
ANGEL'S PLUMBING LTD	2019	Active	SO30
HAMPSHIRE BUILDING CONTRACTORS LIMITED	2021	Active	SO16
ADEPTUS GROUP LTD	2020	Active	SO15
ECOTECH MECHANICAL LIMITED	2026	Active	SO15
L BAKER GAS SOLUTIONS LIMITED	2018	Active	SO15
MCCARTHY PLUMBING, HEATING AND RENEWABLES LIMITED	2023	Active	SO15
KPH SOUTHERN PLUMBING & HEATING LTD	2025	Active	SO30
AMPS POWER CONSTRUCTION LTD	2026	Active	SO16
BOBS PLUMBING LIMITED	2016	Active	SO16
E IRONS GAS, PLUMBING AND HEATING LTD	2015	Active	SO45
SOUTHAMPTON GAS & PLUMBING LTD	2013	Active	SO30
SOLID BUILD MECHANICAL SERVICES LTD	2025	Active	SO30
NABLINE LTD	2021	Active	SO16
KENSINGTON BATHROOMS LIMITED	2017	Active	SO16
LARK@ROE LTD	2025	Active	SO45
RJ AIR CONDITIONING SYSTEMS LTD	2026	Active	SO16
BECKETTS PLUMBING AND HEATING LTD	2021	Active	SO15
SM SYSTEMS PLUMBING AND HEATING LTD	2021	Active	SO16
C. K. W CONTRACTORS LTD	2023	Active	SO30
I.J.B PLUMBING & HEATING LTD	2003	Active	SO16
DOD GAS SERVICE LTD	2017	Active	SO31
M. GARWIN PLUMBING & HEATING LIMITED	2009	Active	SO16
CORRECT CONTRACT SERVICES LIMITED	2007	Active	SO50
PIPEWORKS SOUTHAMPTON LTD	2015	Active	SO16

Electrical and other installation companies

Showing 100 of 599 electrical and other installation companies. Active offices nearest the town centre come first. No profile page for this SIC class.
Company	SIC	Incorporated	Status	District
H G ELECTRICAL LTD	43210 · electrical installation	2022	Active	SO14
1682 PRODUCTIONS LTD	43290 · other construction installation; 59112; 73120; 74202	2022	Active	SO19
MAYNARDS (HOLDINGS) LTD	43210 · electrical installation	2015	Active	SO18
HARRINGTON ELECTRICAL CONTRACTOR LTD	43210 · electrical installation	2024	Active	SO18
G B MARINE SERVICES LTD	43290 · other construction installation	2008	Active	SO19
I&P CONSTRUCTION LTD	43290 · other construction installation; 42110; 43999	2025	Active	SO14
DYNAMIC ELECTRICAL SOLUTIONS LTD	43210 · electrical installation	2009	Active	SO14
DYNAMIC INSTALL PROJECTS LTD	43210 · electrical installation	2024	Active	SO14
QUAYSIDE ELECTRICAL LTD	43210 · electrical installation	2005	Active	SO14
QUAYSIDE RENEWABLES LIMITED	43210 · electrical installation	2023	Active	SO14
PAPAJ ELECTRICITY LTD	43210 · electrical installation; 43999	2015	Active	SO14
THORNE FENCING LIMITED	43290 · other construction installation; 46730	2022	Active	SO18
1 CALL ELECTRICAL LTD	43210 · electrical installation	2023	Active	SO19
ALR ELECTRICAL SERVICES LTD	43210 · electrical installation	2015	Active	SO18
MK UK PROJECTS UK LIMITED	43290 · other construction installation; 41100; 41201; 41202	2024	Active	SO18
ZIMNO CONSTRUCTION LTD	43210 · electrical installation; 41202	2020	Active	SO19
COAST AND COUNTRY FENCING LTD	43290 · other construction installation	2024	Active	SO19
RIVERSIDE ELECTRICAL & PAT TESTING LTD	43210 · electrical installation	2024	Active	SO18
CRM (SOUTHERN) LTD	43290 · other construction installation	2013	Active	SO18
COLLICUTT LIMITED	43210 · electrical installation; 33140; 47781; 90030	2019	Active	SO19
ADROIT CONTRACTING LTD	43210 · electrical installation	2019	Active	SO19
THE ELECTRIC COMPANY SOUTHERN LTD	43210 · electrical installation; 47990	2018	Active	SO19
JEMS GROUP SOUTHERN LTD	43210 · electrical installation; 82990	2024	Active	SO14
TEAME ELECTRICAL LIMITED	43210 · electrical installation	2015	Active	SO19
MCKIE’S ROTATIONAL BRICKS LTD	43290 · other construction installation	2022	Active	SO17
MERRYTHORN ELECTRICAL LTD	43210 · electrical installation	2025	Active	SO19
DEREK YOUNG ELECTRICAL LIMITED	43210 · electrical installation	2018	Active	SO19
TMD MAINTENANCE AND SERVICES LTD	43210 · electrical installation; 41202	2020	Active	SO19
EMPIRE ELECTRICAL & MECHANICAL SOLUTIONS LTD	43210 · electrical installation	2020	Active	SO19
TENDERCHANGE LIMITED	43210 · electrical installation	1996	Active	SO19
D&D HOME IMPROVEMENTS LTD	43290 · other construction installation	2025	Active	SO18
S ALLEN ELECTRICAL LTD	43210 · electrical installation	2018	Active	SO19
SHARPE'S ELECTRICAL SERVICES LIMITED	43210 · electrical installation	2021	Active	SO19
BEVERTEX LIMITED	43210 · electrical installation; 46520; 46730; 74100	2026	Active	SO14
DBV CONCEPT LTD	43210 · electrical installation; 43999; 71129	2023	Active	SO14
PEVIAP LIMITED	43210 · electrical installation; 43999	2014	Active	SO19
THOROLD ELECTRICAL SERVICES LTD	43210 · electrical installation	2014	Active	SO18
JEM ELECTRICAL LTD	43210 · electrical installation	2022	Active	SO18
SAVINSTALLATIONS LTD	43290 · other construction installation	2022	Active	SO19
A MOOR ELECTRICAL LIMITED	43210 · electrical installation	2013	Active	SO19
AV ELECTRICAL & PROPERTY SOLUTIONS LIMITED	43210 · electrical installation	2020	Active	SO19
AVERONA GROUP LTD	43210 · electrical installation	2022	Active	SO19
C HOWE ELECTRICAL LTD	43210 · electrical installation; 33140; 95210; 95220	2020	Active	SO19
DALEHURST CONSTRUCTION LTD	43290 · other construction installation	2026	Active	SO19
S BREWER BUILDING LTD	43290 · other construction installation	2022	Active	SO19
WATTWISE ELECTRIC SOUTHERN LIMITED	43210 · electrical installation	2026	Active	SO19
TRAVOLTA ELECTRICAL SERVICES LTD	43210 · electrical installation	2020	Active	SO19
JAYLEC ELECTRICAL LIMITED	43210 · electrical installation	2014	Active	SO19
GREEN LIZARD ELECTRICAL LTD	43210 · electrical installation	2016	Active	SO19
CONSTRUCTION CO SERVICES LTD	43210 · electrical installation; 43341; 43999	2026	Active	SO18
ELTECH W LTD	43290 · other construction installation	2019	Active	SO19
PKM ELECTRICAL LTD	43210 · electrical installation; 43390	2019	Active	SO19
ADALEC ELECTRICAL CONTRACTORS LTD	43210 · electrical installation	2013	Active	SO14
IMPACT BUILDING PROJECTS LTD	43290 · other construction installation	2024	Active	SO14
RADSTOCK ELECTRICAL LTD	43210 · electrical installation	2024	Active	SO14
YOUR OWN ENERGY LTD	43210 · electrical installation; 35110; 43999; 74901	2011	Active	SO14
EDGE SOUTHERN LTD	43290 · other construction installation	2015	Active	SO17
STRONG CURRENT GROUP LIMITED	43210 · electrical installation	2023	Active	SO14
MJS ELECTRICAL SERVICES LTD	43210 · electrical installation	2025	Active	SO19
DOFIX UK LTD	43210 · electrical installation	2022	Active	SO14
B S ELECTRICAL & TESTING LIMITED	43210 · electrical installation	2009	Active	SO14
GRANITE WORKTOPS 2 GO LTD	43290 · other construction installation	2015	Active	SO14
OPTIMUM ABSEILING LTD	43290 · other construction installation	2018	Active	SO14
PLM TECHNICAL SERVICES LTD	43210 · electrical installation	2005	Active	SO14
SMOKE VENT SYSTEMS LTD	43210 · electrical installation; 71111	2011	Active	SO14
WILSON & WARD ELECTRICAL SERVICES LIMITED	43210 · electrical installation	2019	Active	SO14
JWH BUILDING CONTRACTORS LTD	43290 · other construction installation	2021	Active	SO19
ENERGY RECOVERY SOLUTIONS LIMITED	43290 · other construction installation	2013	Active	SO14
GM ELECTRICAL SOLUTIONS LTD	43210 · electrical installation	2015	Active	SO14
NTK CONTRACTORS LTD	43290 · other construction installation	2026	Active	SO14
PW MNE SOLUTIONS LTD	43210 · electrical installation	2019	Active	SO18
PHAZE ELECTRICS LTD	43210 · electrical installation	2025	Active	SO19
RIZQ PERI PERI GRILL (SOUTHAMPTON) LIMITED	43210 · electrical installation; 43390; 43999; 55900	2022	Active	SO17
D&D FIRE PROTECTION LTD	43290 · other construction installation	2025	Active	SO19
CARIB ELECTRICAL LTD	43210 · electrical installation	2025	Active	SO19
G&D 2017 LIMITED	43210 · electrical installation; 64991	2017	Active	SO18
GLASGOW POWER SOLUTIONS LIMITED	43290 · other construction installation	2017	Active	SO14
VOLTWAVEUK LTD	43210 · electrical installation	2023	Active	SO19
A F ELECTRICAL AND SONS LTD	43210 · electrical installation	2021	Active	SO15
BIMTEC ELECTRICAL LTD	43210 · electrical installation	2025	Active	SO15
JOHN HUBBARD LIMITED	43210 · electrical installation	2022	Active	SO15
K.P.A. ELECTRICAL SERVICES LTD	43210 · electrical installation; 71129	2023	Active	SO15
RESET ELECTRICAL LTD	43210 · electrical installation	2012	Active	SO15
R C RUSSELL ELECTRICAL LIMITED	43210 · electrical installation	2014	Active	SO18
YELLOW ELECTRICAL AND PROPERTY SERVICES LIMITED	43210 · electrical installation	2006	Active	SO19
SOLID ELECTRICS LIMITED	43210 · electrical installation	2019	Active	SO18
ASPECT ELECTRICAL SOUTH LTD	43210 · electrical installation	2023	Active	SO19
MJA ELECTRICAL AND MAINTENANCE LTD	43210 · electrical installation	2026	Active	SO19
SJD ELECTRICAL SOLUTIONS LIMITED	43210 · electrical installation	2026	Active	SO14
WTF ELECTRICAL SERVICES LTD	43210 · electrical installation	2021	Active	SO15
102 LTD	43210 · electrical installation; 69202	2011	Active	SO14
K.A.B. ONE LTD	43210 · electrical installation; 66220; 71129	2013	Active	SO14
SUPREMACY GROUP LTD	43290 · other construction installation; 43910	2022	Active	SO14
H&J WASTE METAL RECYCLING LTD	43210 · electrical installation; 38310; 46770	2026	Active	SO15
THORNLEIGH LIMITED	43290 · other construction installation; 78109	2024	Active	SO15
UK LOFTSAVER LTD	43290 · other construction installation	2025	Active	SO15
CLIMAVOLT LTD	43210 · electrical installation	2025	Active	SO14
MAXKOR TECH LTD	43290 · other construction installation	2024	Active	SO14
SEMAS SOLUTIONS LTD	43290 · other construction installation; 41201; 41202	2024	Active	SO19
AVENUE ELECTRICAL LIMITED	43210 · electrical installation	2003	Active	SO17

Heat and planning around Southampton

In Southampton last summer (2026) there were ≈9.7 nights that stayed above 18 °C — 7 times the 1991–2020 average of 1.5 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities). The figure is the household-weighted mean of 15 postcode districts where these offices are registered.

5% of sampled postcodes in Southampton sit in a conservation area (14,109 live postcodes across 15 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