Swansea: plumbing, heating and air-conditioning companies

Swansea has 208 plumbing, heating and air-conditioning companies (SIC 43220) and 308 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 SA1, summer 2026 had ≈6 nights above 18 °C there (9 times the 1991–2020 average of 0.7).

SIC 43220

Open a company

ABERTAWE HEATING & PLUMBING LTD, incorporated 2013, status Active.

Postcode districts

10 postcode districts in Swansea. Each link lists every registered office in that district.
District	SIC 43220	SIC 43210 and 43290
SA1	54	93
SA4	34	46
SA7	30	40
SA5	22	31
SA2	22	25
SA6	18	30
SA8	11	11
SA9	9	15
SA3	8	16
SA12	0	1

Plumbing, heating and air-conditioning companies

Showing 200 of 208 SIC 43220 companies. Active offices nearest the town centre come first.
Company	Incorporated	Status	District
NEXOSTERS LTD	2026	Active	SA5
AQUA REVIVAL BATHROOMS LTD	2025	Active	SA5
K.W.A HEATING & PLUMBING SOLUTIONS LTD	2025	Active	SA5
HOOKE PLUMBING & HEATING LTD	2013	Active	SA5
JSM MECHANICALS LTD	2025	Active	SA5
JJG GAS SERVICES LTD	2023	Active	SA6
COLGAS LTD	2025	Active	SA5
NUVIVE PROPERTY.SERVICES LTD	2025	Active	SA5
STAR GAS SERVICES WALES LIMITED	2023	Active	SA5
SHS PROPERTY MAINTENANCE LTD	2024	Active	SA5
NEXT GEN HEATING LTD	2025	Active	SA5
N.A.D PLUMBING LIMITED	2015	Active	SA5
TGD SERVICES LTD	2020	Active	SA6
HPL (WALES) LIMITED	2014	Active	SA6
JINX GAS LTD	2025	Active	SA5
WARMERHOMES PLUMBING AND HEATING LTD	2023	Active	SA5
EBE PROPERTIES LTD	2025	Active	SA5
LEAK FIXERS SWANSEA PLUMBING LTD	2025	Active	SA5
HALE HEATING AND PLUMBING LTD	2020	Active	SA5
PLAZATHEME LIMITED	1994	Active	SA6
MDC HEATING SERVICES LTD	2003	Active	SA5
D.H.A. (WALES) LIMITED	1996	Active	SA6
AIR CONDITIONING & HEAT PUMPS LIMITED	2026	Active	SA7
GSW & SON LIMITED	2025	Active	SA7
IVD HEATING LTD	2022	Active	SA7
S W HEATING & PLUMBING (GOWER) LTD	2014	Active	SA7
SKETTY GAS LTD	2024	Active	SA7
HWV 11 LIMITED	2007	Active	SA6
LEE JONES HEATING LIMITED	2021	Active	SA5
6 ENERGY LIMITED	2026	Active	SA7
ASW ENERGY SERVICES LIMITED	2019	Active	SA7
INTERNATIONAL WORKPLACE SOLUTIONS LTD	2019	Active	SA7
P.C. JENKINS LIMITED	1976	Active	SA7
AMJU GAS PLUMBING AND HEATING LTD	2023	Active	SA1
AMROC HEATING SERVICES LIMITED	2006	Active	SA6
PREMIUM PLUMBING SOLUTIONS LTD	2023	Active	SA5
HYDRATECH MECHANICAL AND ELECTRICAL LTD	2018	Active	SA7
SOUTH WALES HEAT PUMPS LIMITED	2023	Active	SA7
ABOUT DRAINS LTD	2024	Active	SA1
SCHLESWICK & SON LIMITED	2022	Active	SA2
HEATSOURCE (WALES) LIMITED	2012	Active	SA5
HYDRO WORKS LTD	2025	Active	SA1
DRS FM SERVICES LIMITED	2013	Active	SA7
WARM TECH LTD	2018	Active	SA1
JMW HEATING AND PLUMBING LIMITED	2016	Active	SA1
SOUTH WALES GAS SERVICES LTD	2018	Active	SA4
GAS CARE SWANSEA LTD	2025	Active	SA7
GREENS PRECISE PLUMBING & HEATING LTD	2020	Active	SA7
MORSTONE PLUMBING & HEATING LTD	2026	Active	SA7
PB HEATING & PLUMBING LIMITED	2015	Active	SA7
PC INSTALLATIONS LIMITED	2026	Active	SA7
TOTAL CARE (WALES) LTD	2014	Active	SA6
WEBBORN'S INDUSTRIAL SERVICES LTD	2025	Active	SA2
MDELL INSTALLATIONS LTD	2026	Active	SA1
QUINT HEATING SERVICES LIMITED	2016	Active	SA1
CAMBRIANI GAS LTD	2019	Active	SA1
HYBRID HEATING LIMITED	2025	Active	SA1
J.A PLUMBING & BATHROOMS LIMITED	2023	Active	SA1
JPM PLUMBING AND HEATING LTD	2026	Active	SA1
OPTIMAL PLUMBING HEATING & GAS SERVICES LIMITED	2025	Active	SA1
SPECIALIST SPRINKLER AND PLUMBING SERVICES LIMITED	2019	Active	SA1
FLUSH H2O LTD	2022	Active	SA6
WATERSHIELD (SW) LTD	2009	Active	SA1
ABERTAWE HEATING & PLUMBING LTD	2013	Active	SA1
AO GAS LTD	2019	Active	SA1
JK HOME COMFORTS LTD	2026	Active	SA1
S D W PLUMBING & HEATING SOUTH WALES LTD	2024	Active	SA1
SGW PLUMBING & HEATING LIMITED	2017	Active	SA1
STEWART THOMAS PLUMBING & HEATING LTD	2022	Active	SA1
T & G GAS SERVICES LTD	2022	Active	SA1
THOMAS & GREEN PLUMBING & HEATING LTD	2022	Active	SA1
VINCENT CLIMATE SOLUTIONS LTD	2026	Active	SA1
ELITE HEATING SERVICES (WALES) LIMITED	2002	Active	SA1
GAS RIGHT LIMITED	2025	Active	SA1
THE PLUMBING AND GAS COMPANY LTD	2024	Active	SA2
PTW PLUMBING LTD	2011	Active	SA2
ECOTECH INSTALLATIONS LTD	2024	Active	SA2
HEATERUP LTD	2024	Active	SA2
SA1 UTILITIES SOLUTIONS LTD	2026	Active	SA7
FULL POWER INSTALLATIONS LTD	2026	Active	SA1
TIDAL DEVELOP AND CONSTRUCT LTD	2026	Active	SA1
BLUE JAYS HOME SERVICES LTD	2026	Active	SA1
OSBORN PIPE FITTING SERVICES LIMITED	2016	Active	SA6
OWL PLUMBING AND HEATING SERVICES LTD	2024	Active	SA6
THERMAVOLT ENERGY SOLUTIONS LTD	2025	Active	SA2
LSV WATER LTD	2018	Active	SA7
HALE HEATING AND RENEWABLES LTD	2025	Active	SA4
GAS SERVICES WALES LIMITED	2001	Active	SA1
SMK PLUMBING AND HEATING LIMITED	2014	Active	SA2
FLAMING HOT HEATING LTD	2022	Active	SA1
EVEREST MECHANICAL SERVICES LIMITED	2026	Active	SA2
AIR SOURCE ENERGY SOUTH WALES LIMITED	2022	Active	SA7
WARMSERVE SERVICES LIMITED	2013	Active	SA4
HILL GRWP LTD	2003	Active	SA5
BROOKSMITH AIR LIMITED	2026	Active	SA4
ECO CARE SOLUTIONS LTD	2018	Active	SA2
SWANSBAY LTD	2022	Active	SA2
GREEN DRAGON RENEWABLES LIMITED	2024	Active	SA7
FRESHWATER INTERIORS LTD	2004	Active	SA5
WHITECROSS AND SON LIMITED	2003	Active	SA2
AR PLUMBING, HEATING & GAS LTD	2021	Active	SA7
PREMIER PLUMBING LTD	2021	Active	SA7
N BOWDEN LIMITED	2021	Active	SA2
DC PLUMBING & CONSTRUCTION LTD	2026	Active	SA2
L C PLUMBING AND BATHROOMS LTD	2012	Active	SA4
DANCER ENGINEERING SERVICES LIMITED	2024	Active	SA2
CLIMA COOLING SOLUTIONS LTD	2026	Active	SA7
COASTLINE HEATING SERVICES LIMITED	2019	Active	SA2
PURSEY AND BALL LIMITED	2005	Active	SA1
SG RENEWABLE SOLUTIONS LTD	2023	Active	SA6
J & J AIR CONDITIONING REFRIGERATION LTD	2025	Active	SA6
HENDRE GAS SERVICES LTD	2021	Active	SA2
GARMIK GAS SERVICES LIMITED	2017	Active	SA2
JMG PLUMBING & HEATING LIMITED	2018	Active	SA4
HEAT PUMP SERVICES LTD	2009	Active	SA4
JTR PLUMBING SERVICES LTD	2024	Active	SA2
PAGE ENGINEERING SERVICES LTD	2025	Active	SA2
J P VELARDO LIMITED	2004	Active	SA6
SWANSEA GAS AND OIL LIMITED	2025	Active	SA4
SWANSEA PLUMBERS & BOILERS LTD	2025	Active	SA6
RM BLAKE CLIMATE & ENERGY LTD	2026	Active	SA7
RM BLAKE LTD	2014	Active	SA7
J HALL PLUMBING AND HEATING LTD	2007	Active	SA4
ALTAN PLUMBING & HEATING LTD	2021	Active	SA4
TJH INSTALLATIONS LTD	2025	Active	SA4
SOUTH WALES GAS AND BOILER SERVICES LTD	2026	Active	SA4
GOWER GAS & RENEWABLES LIMITED	2015	Active	SA1
CAMBRIANI PLUMBING & HEATING LTD	2021	Active	SA4
SOUTH COAST PROPERTY MAINTENANCE LTD	2024	Active	SA3
R.T. SCOTT LTD	2014	Active	SA4
KTL PLUMBING & GAS LTD	2026	Active	SA4
PLATINUM PROPERTY SERVICES (WALES) LIMITED	2010	Active	SA4
PLATINUM TOTAL SERVICES LTD	2018	Active	SA4
MARTYN EDWARDS PLUMBING LTD	2022	Active	SA2
WARMGEN PLUMBING AND HEATING LTD	2026	Active	SA4
CITYFLOW PLUMBING AND HEATING LIMITED	2026	Active	SA4
TGHC GROUP LTD	2024	Active	SA3
DIAL CARPENTRY LTD	2023	Active	SA4
JNC INTERIORS KITCHENS & BATHROOMS LTD	2022	Active	SA4
SWANSEA GAS SERVICES LTD	2023	Active	SA4
STEVEN DAVIES PLUMBING & HEATING LTD	2018	Active	SA4
SOUTH COAST PLUMBING & HEATING LTD	2012	Active	SA3
P.J. JONES (PLUMBING AND HEATING) LTD	1997	Active	SA4
ECORE ENERGY SOLUTIONS LTD	2024	Active	SA4
ENERGYSAVE LTD	2020	Active	SA4
MUMBLES GAS SERVICES LTD	2015	Active	SA3
EVOLVE HOME SERVICES LTD	2021	Active	SA4
LIMITLESS ENERGY LTD	2016	Active	SA3
HOME ECO SOLUTIONS LIMITED	2020	Active	SA4
SR WILLIAMS PLUMBING AND HEATING LTD	2025	Active	SA4
PLUMBTEC GAS LTD	2013	Active	SA4
HELIX PLUMBING AND GAS LIMITED	2023	Active	SA4
ANTLIN PLUMBING & HEATING LIMITED	2011	Active	SA8
CANNON HEATING SERVICES LTD	2007	Active	SA8
GREEN CORE UTILITY SOLUTIONS LTD	2024	Active	SA8
MICHAEL BAKER BOILER MAINTENANCE LIMITED	2005	Active	SA8
OSBORNE JONES LOGBURNERS AND STOVES LTD	2023	Active	SA8
HARRY'S HEATING & PLUMBING LTD	2023	Active	SA4
MKLW GROUP LTD	2023	Active	SA8
HANDYMAN-24H LTD	2014	Active	SA8
JJL ENERGY SERVICES LTD	2024	Active	SA8
DJP PLUMBING AND HEATING LTD.	2021	Active	SA8
DURAMAX PLUMBING LIMITED	2025	Active	SA8
DW-AIR LIMITED	2018	Active	SA9
CROWSFOOT HEATING SERVICES LTD	2022	Active	SA9
JUST IN TIME PLUMBING, HEATING & BUILDING SERVICES LIMITED	2006	Active	SA9
R L REES LTD	2014	Active	SA9
GOWER REFRIGERATION AND AIR CONDITIONING LTD	2026	Active	SA3
AYLES M.E.C LTD	2023	Active	SA9
GRAHAM'S HEATING & PLUMBING LTD	2010	Active	SA9
TD HEATING SOLUTIONS LTD	2026	Active	SA9
HS SERVICES PHG LTD	2022	Active	SA9
VALLEY HEATING & PLUMBING LTD	2020	Active	SA9
HOUSE OF TRADES LTD	2018	Active - Proposal to Strike off	SA1
TREFORYS GAS SOLUTIONS LTD	2019	Active - Proposal to Strike off	SA6
TOTAL ENERGY SYSTEMS LTD	2018	Active - Proposal to Strike off	SA6
AQUARIUS PLUMBING SOLUTIONS LIMITED	2018	Active - Proposal to Strike off	SA1
AURORA GAS LTD	2015	Active - Proposal to Strike off	SA1
HEATLEX GROUP INSTALLATIONS LTD	2019	Active - Proposal to Strike off	SA6
TRUEFIX DEVELOPMENTS LIMITED	2025	Active - Proposal to Strike off	SA1
IAN HEARLE LIMITED	2007	Active - Proposal to Strike off	SA7
TOTAL BATHROOM SOLUTIONS LTD	2024	Active - Proposal to Strike off	SA1
AQUASERVE PLUMBING & HEATING LTD	2021	Active - Proposal to Strike off	SA1
CAPITAL 2020 LTD	2014	Active - Proposal to Strike off	SA1
GOWER PLUMBING ELECTRIC AND GAS LIMITED	2016	Liquidation	SA1
AQUAGAS PLUMBING & HEATING SERVICES LIMITED	2016	Liquidation	SA1
DANCOLD LTD	2013	Liquidation	SA1
GASTEK HOMESAFE LIMITED	2019	Liquidation	SA1
GOWER GAS HEATING SERVICES LIMITED	2006	Liquidation	SA1
GWORKS LIMITED	2002	Liquidation	SA1
HOUSECHOICE LIMITED	2010	Liquidation	SA1
IN THE PIPELINE (SOUTH EAST) LTD	2021	Liquidation	SA1
J L PRESTIGE PLUMB LIMITED	2020	Liquidation	SA1
T.J.PLUMBING & HEATING SERVICES LIMITED	2018	Liquidation	SA1
W A C R LIMITED	2013	Liquidation	SA1
RENEWABLE HOME ENERGY LTD	2021	Active - Proposal to Strike off	SA1
HARDINGS ENERGY SERVICES LTD	2019	Liquidation	SA1
PLUMB-RITE PLUMBING SERVICES LTD	2010	Liquidation	SA1
PURE FLO (SOUTH) LTD	2023	Liquidation	SA1
BMECH LIMITED	2018	Active - Proposal to Strike off	SA2

Electrical and other installation companies

Showing 100 of 308 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
ONI ELECTRICAL LTD	43210 · electrical installation	2019	Active	SA5
PHILLIPS SERVICES (WALES) LIMITED	43210 · electrical installation	1969	Active	SA1
AVIT STRUCTURES LIMITED	43290 · other construction installation	2017	Active	SA6
RTB ELECTRICAL SERVICES LIMITED	43210 · electrical installation	2017	Active	SA5
J & A ELECTRICAL SERVICES LTD	43210 · electrical installation	2013	Active	SA5
BULLS PROPERTIES LTD	43290 · other construction installation; 68209	2022	Active	SA5
PLATINUM BRICKLAYING LIMITED	43290 · other construction installation	2022	Active	SA5
FENRIS ELECTRICAL LIMITED	43210 · electrical installation	2024	Active	SA1
FLD ELECTRICAL LTD.	43210 · electrical installation; 43290 · other construction installation	2019	Active	SA1
HANIELS ELECTRICAL LTD	43210 · electrical installation	2025	Active	SA6
R&L GROUP LIMITED	43290 · other construction installation	2023	Active	SA5
BOWEN HOPKINS LIMITED	43210 · electrical installation	1980	Active	SA5
BRANDRICK GROUP LIMITED	43210 · electrical installation	2026	Active	SA5
CHRIS CHAMBERS HOLDINGS LIMITED	43210 · electrical installation	2026	Active	SA5
D & C ELECTRICAL (SWANSEA) LTD	43210 · electrical installation	2013	Active	SA5
IDEAL ENGINEERING & CONTRACTORS LTD	43210 · electrical installation; 43290 · other construction installation; 33200	2026	Active	SA6
FIRE SAFETY DIRECT LIMITED	43210 · electrical installation; 46690; 84250	2003	Active	SA6
POLARIS VEHICLE SOLUTIONS LIMITED	43210 · electrical installation	2018	Active	SA6
H. PHILLIPS ELECTRICALS LIMITED	43210 · electrical installation	2010	Active	SA6
R & R SMART SOLUTIONS LIMITED	43210 · electrical installation	2022	Active	SA5
MEDWIN LTD	43210 · electrical installation	2020	Active	SA6
BULBASTIC ENGINEERING LIMITED	43210 · electrical installation	2024	Active	SA1
FIREL LTD	43290 · other construction installation; 16230; 43320; 70229	2023	Active	SA6
PREMIER WINDOWS DIRECT LIMITED	43290 · other construction installation	2018	Active	SA6
MIRUS ENERGY (CYMRU) LTD	43210 · electrical installation; 81100	2022	Active	SA7
SUB ELECTRICAL LTD	43210 · electrical installation	2016	Active	SA5
ARCSAFE LTD	43210 · electrical installation; 85320	2019	Active	SA6
BR JOINERY LIMITED	43290 · other construction installation; 43320	2022	Active	SA7
CD ELECTRICAL LTD	43210 · electrical installation	2020	Active	SA7
DHWD LIMITED	43290 · other construction installation; 41201; 41202; 43390	2009	Active	SA7
DOOR SYSTEM INSTALLATIONS LTD	43290 · other construction installation	2009	Active	SA7
EFFICIENT LIVING SOLUTIONS UK LTD	43290 · other construction installation	2023	Active	SA7
ELECTRICAL & RENEWABLE INSTALLATIONS LIMITED	43210 · electrical installation	2023	Active	SA7
GRE ELECTRICAL SERVICES LIMITED	43210 · electrical installation	2024	Active	SA7
HOUND SECURITY LTD	43210 · electrical installation	2018	Active	SA7
JOHN MITCHELL ELECTRICAL SOLUTIONS LIMITED	43210 · electrical installation	2026	Active	SA7
SOWDEN AGRI LIMITED	43210 · electrical installation; 46610	2024	Active	SA7
STEWART BROS LTD	43290 · other construction installation	2023	Active	SA6
LA ENERGY LTD	43210 · electrical installation	2025	Active	SA1
PENDRAGON ELECTRICAL LTD	43210 · electrical installation	2022	Active	SA6
TOCS SOLUTIONS LIMITED	43290 · other construction installation	2018	Active	SA5
COASTAL CONSTRUCTION SERVICES LIMITED	43290 · other construction installation	2016	Active	SA1
ARTHUR REGINALD CONSTRUCTION LIMITED	43290 · other construction installation	2023	Active	SA7
GAIA ENABLED LIMITED	43210 · electrical installation; 62012	2020	Active	SA7
HAVEN HOME BUILDERS LIMITED	43210 · electrical installation; 41201; 41202	2024	Active	SA7
JC LEVELS LIMITED	43290 · other construction installation	2026	Active	SA7
TRI-ENERGY LTD	43210 · electrical installation	2026	Active	SA7
AB SOLAR DEVELOPMENTS LTD	43210 · electrical installation	2025	Active	SA5
AB SOLAR GD LTD	43210 · electrical installation	2025	Active	SA5
CSB CONSULTANCY LTD	43290 · other construction installation; 41100	2024	Active	SA5
UK MEZZANINE DIRECT LTD	43290 · other construction installation; 43320; 43390	2022	Active	SA1
K R ELECTRICAL SERVICES LIMITED	43210 · electrical installation	2013	Active	SA7
R.D.M. ELECTRICAL SERVICES LIMITED	43210 · electrical installation	1988	Active	SA7
JOE ELLIOT ELECTRICAL & RENEWABLES LTD	43210 · electrical installation	2023	Active	SA2
MV VOLTMASTERS LTD	43210 · electrical installation	2025	Active	SA1
EPS CONSTRUCTION LTD	43210 · electrical installation	2005	Active	SA5
EPS EV LTD	43210 · electrical installation	2024	Active	SA5
TRUECORE ELECTRICS LTD	43210 · electrical installation	2025	Active	SA2
ELECTECHS LTD	43210 · electrical installation; 26512; 27900; 28990	2002	Active	SA6
ANDREW WEDLAKE ELECTRICAL LIMITED	43210 · electrical installation	2011	Active	SA6
A.BEYNON AGRI ENVIROCON LIMITED	43290 · other construction installation; 47990	2011	Active	SA1
BAYWIFI (UK) LIMITED	43210 · electrical installation; 33140	2019	Active	SA1
GUARDIAN PROPERTY SERVICES (GPSUK) LIMITED	43210 · electrical installation; 33140	2019	Active	SA1
PRO SPEC INTERIORS LIMITED	43290 · other construction installation	2001	Active	SA1
ALPHA ELECTRICS CONTRACTING LIMITED	43210 · electrical installation; 33140	2002	Active	SA1
A-L-R INSTALLATION GROUP LTD	43290 · other construction installation; 41201; 41202	2025	Active	SA5
ATLAS SOLAR & STORAGE LIMITED	43210 · electrical installation; 43290 · other construction installation	2026	Active	SA7
CURSIO ELECTRICAL LIMITED	43210 · electrical installation	2025	Active	SA7
DCW PROJECT SERVICES LTD	43290 · other construction installation	2018	Active	SA7
J3 ELECTRICAL SERVICES LIMITED	43210 · electrical installation	2016	Active	SA7
MORSTONE ELECTRICAL LTD	43210 · electrical installation	2026	Active	SA7
SCORPION M&E SERVICES LTD	43290 · other construction installation	2021	Active	SA7
T. J. BROWN LTD	43210 · electrical installation	2025	Active	SA7
TPN ELECTRICAL ENGINEERS LIMITED	43210 · electrical installation	2004	Active	SA7
TRUCORE BUILD GROUP LTD	43290 · other construction installation; 41100; 43390	2025	Active	SA1
MYLESJENKINS ELECTRICAL LIMITED	43210 · electrical installation	2023	Active	SA1
TONDO DESIGN & BUILD LIMITED	43290 · other construction installation	2018	Active	SA1
NMULTITRADE LTD	43290 · other construction installation; 41100; 41202; 43390	2026	Active	SA1
ENVIROTEQ LIMITED	43210 · electrical installation; 33140; 36000; 37000	2011	Active	SA2
A BRIGHT SOLUTION UK LIMITED	43210 · electrical installation	2012	Active	SA1
DPF ELECTRICAL SERVICES LIMITED	43210 · electrical installation	2026	Active	SA1
JFR BUILDING & BESPOKE REFURBISHMENT LTD	43290 · other construction installation	2024	Active	SA1
SWANSEA ELECTRICAL SOLUTIONS LTD	43210 · electrical installation	2021	Active	SA1
ULEX ENERGY LTD	43210 · electrical installation; 43910	2025	Active	SA1
SEAN LTD	43210 · electrical installation	2010	Active	SA1
ROBINSON'S LIGHTING & ELECTRICAL SERVICES LIMITED	43210 · electrical installation	2023	Active	SA1
MONOLITHIC BRICKLAYING CO. LTD	43290 · other construction installation; 43390; 43999	2002	Active	SA1
RICHARD WILLIAMS ELECTRICAL LIMITED	43210 · electrical installation	2008	Active	SA1
BUTLER & EDWARDS ELECTRICAL SERVICES LTD	43210 · electrical installation	2017	Active	SA4
INDEPENDENCE UK LIMITED	43210 · electrical installation	2008	Active	SA1
AMK ELECTRICAL CONTRACTORS LTD	43210 · electrical installation	2019	Active	SA1
ASQUITH ELECTRICAL & SONS LTD	43210 · electrical installation	2022	Active	SA1
BAT ELECTRICS LIMITED	43210 · electrical installation	2025	Active	SA1
EXCEL ELECTRICAL & SOLAR SERVICES LTD	43210 · electrical installation	2023	Active	SA1
K R G ELECTRICAL SERVICES LTD	43210 · electrical installation	2020	Active	SA1
LET'S CONNECT ELECTRICAL SERVICES LTD	43210 · electrical installation	2023	Active	SA1
P COLLIER BUILDING LTD	43290 · other construction installation	2019	Active	SA1
POLARIS ENGINEERING SERVICES LTD	43210 · electrical installation; 71129	2022	Active	SA1
R J BRICKWORK LTD	43290 · other construction installation	2020	Active	SA1
CSMC ELECTRICAL LTD	43210 · electrical installation	2025	Active	SA6

Heat and planning around Swansea

In Swansea last summer (2026) there were ≈7.6 nights that stayed above 18 °C — 9 times the 1991–2020 average of 0.8 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities). The figure is the household-weighted mean of 10 postcode districts where these offices are registered.

5% of sampled postcodes in Swansea sit in a conservation area (7,451 live postcodes across 10 districts).

In Wales 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