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SA1: plumbing, heating and air-conditioning companies in Swansea
SA1 (Swansea) has 54 plumbing, heating and air-conditioning companies registered here (SIC 43220) and 93 electrical and other installation companies (Companies House, 1 Sep 2026); 0 are MCS-certified for air-to-air yet. If the summer is the question, SA1 had ≈6 nights above 18 °C in 2026 (9 times the 1991–2020 average of 0.7).
SA1
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ABERTAWE HEATING & PLUMBING LTD, incorporated 2013, status Active.
Plumbing, heating and air-conditioning companies
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| 3HREE 65 SERVICES LTD | 43210 · electrical installation | 2017 | Liquidation | SA1 |
| A BRIGHT SOLUTION UK LIMITED | 43210 · electrical installation | 2012 | Active | SA1 |
| A.BEYNON AGRI ENVIROCON LIMITED | 43290 · other construction installation; 47990 | 2011 | Active | SA1 |
| ABR ELECTRICAL SERVICES (SOUTH WALES) LTD | 43210 · electrical installation | 2014 | Liquidation | SA1 |
| ABZ CARPENTRY LTD | 43290 · other construction installation | 2004 | Active | SA1 |
| AC ELECTRICAL ENGINEERS LTD | 43210 · electrical installation | 2019 | Liquidation | SA1 |
| AD TECHNIQUE LTD | 43210 · electrical installation; 42220 | 2021 | Active | SA1 |
| AFS SPRINKLERS LIMITED | 43290 · other construction installation | 2026 | Active | SA1 |
| AGLEC ELECTRICAL LTD | 43210 · electrical installation | 2019 | Liquidation | SA1 |
| ALPHA ELECTRICS CONTRACTING LIMITED | 43210 · electrical installation; 33140 | 2002 | Active | SA1 |
| ALPINE MECHANICAL LIMITED | 43290 · other construction installation | 2018 | Active - Proposal to Strike off | SA1 |
| AMK ELECTRICAL CONTRACTORS LTD | 43210 · electrical installation | 2019 | Active | SA1 |
| ASQUITH ELECTRICAL & SONS LTD | 43210 · electrical installation | 2022 | Active | SA1 |
| AURORA ELECTRICAL & MAINTENANCE LTD | 43210 · electrical installation | 2026 | Active | SA1 |
| AVERNAKIS LTD | 43210 · electrical installation; 68100 | 2022 | Active | SA1 |
| AYSUSA GROUP LIMITED | 43290 · other construction installation; 41202 | 2023 | Active | SA1 |
| BAT ELECTRICS LIMITED | 43210 · electrical installation | 2025 | Active | SA1 |
| BAYWIFI (UK) LIMITED | 43210 · electrical installation; 33140 | 2019 | Active | SA1 |
| BULBASTIC ENGINEERING LIMITED | 43210 · electrical installation | 2024 | Active | SA1 |
| CEC (COYLE ELECTRICAL CONTRACTORS) LTD | 43210 · electrical installation | 2002 | Active | SA1 |
| CGL CONTRACTS LIMITED | 43290 · other construction installation | 2020 | Active | SA1 |
| COASTAL CONSTRUCTION SERVICES LIMITED | 43290 · other construction installation | 2016 | Active | SA1 |
| CORAL FORMWORK LIMITED | 43290 · other construction installation | 2009 | Liquidation | SA1 |
| CORBEC INSTALLATIONS LTD | 43210 · electrical installation | 2025 | Active - Proposal to Strike off | SA1 |
| CROWN BUILDING CONTRACTORS LTD | 43290 · other construction installation | 2025 | Active | SA1 |
| DAVIES SECURITY LIMITED | 43210 · electrical installation | 2001 | Active | SA1 |
| DEMIR ELECTRICAL LIMITED | 43210 · electrical installation | 2019 | Active - Proposal to Strike off | SA1 |
| DPF ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2026 | Active | SA1 |
| DTE ELECTRICAL LIMITED | 43210 · electrical installation | 2014 | Active - Proposal to Strike off | SA1 |
| EAGA HOME LTD | 43290 · other construction installation | 2021 | Liquidation | SA1 |
| ELECTRICAL CONTRACTORS (ASHFIELD) LTD | 43210 · electrical installation | 2011 | Liquidation | SA1 |
| EXCEL ELECTRICAL & SOLAR SERVICES LTD | 43210 · electrical installation | 2023 | Active | SA1 |
| FENRIS ELECTRICAL LIMITED | 43210 · electrical installation | 2024 | Active | SA1 |
| FLD ELECTRICAL LTD. | 43210 · electrical installation; 43290 · other construction installation | 2019 | Active | SA1 |
| FLEX ELECTRICAL INSTALLATIONS LIMITED | 43210 · electrical installation | 2024 | Active | SA1 |
| FORMS CONSTRUCTION LTD | 43290 · other construction installation | 2013 | Liquidation | SA1 |
| GEMINI MECHANICAL SERVICES LTD | 43290 · other construction installation | 2018 | Liquidation | SA1 |
| GUARDIAN PROPERTY SERVICES (GPSUK) LIMITED | 43210 · electrical installation; 33140 | 2019 | Active | SA1 |
| HELIOS SOLAR PV LIMITED | 43210 · electrical installation | 2026 | Active | SA1 |
| HES FIRE AND SECURITY LIMITED | 43210 · electrical installation | 2019 | Liquidation | SA1 |
| HUSH SOUNDPROOFING LIMITED | 43290 · other construction installation | 2016 | Liquidation | SA1 |
| INDEPENDENCE UK LIMITED | 43210 · electrical installation | 2008 | Active | SA1 |
| INDUSTRIAL ELECTRICAL SOLUTIONS LTD | 43210 · electrical installation | 2013 | Active - Proposal to Strike off | SA1 |
| J & M SULLIVAN LIMITED | 43290 · other construction installation | 2019 | Active | SA1 |
| J&M CONSTRUCTION (SW) LIMITED | 43290 · other construction installation; 43320 | 2022 | Liquidation | SA1 |
| J.K. ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2003 | Liquidation | SA1 |
| JADEED LIMITED | 43290 · other construction installation; 55900 | 2018 | Active | SA1 |
| JFR BUILDING & BESPOKE REFURBISHMENT LTD | 43290 · other construction installation | 2024 | Active | SA1 |
| JOSILLIAM LTD | 43210 · electrical installation; 71122; 71200 | 2016 | Active - Proposal to Strike off | SA1 |
| K R G ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2020 | Active | SA1 |
| KEIYA SOLUTIONS LTD | 43290 · other construction installation; 43320; 43390; 43999 | 2017 | Active - Proposal to Strike off | SA1 |
| L DOWER ELECTRICS LTD | 43210 · electrical installation | 2017 | Active - Proposal to Strike off | SA1 |
| LA ENERGY LTD | 43210 · electrical installation | 2025 | Active | SA1 |
| LAFINA GROUP LTD | 43290 · other construction installation; 47190; 70229 | 2019 | Liquidation | SA1 |
| LET'S CONNECT ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2023 | Active | SA1 |
| LJM ELECTRICIANS LTD | 43210 · electrical installation; 33140 | 2020 | Active | SA1 |
| LONDONREWIRES LTD | 43210 · electrical installation; 80200 | 2017 | Liquidation | SA1 |
| M & A PASHA CONSTRUCTION LTD | 43210 · electrical installation; 41202; 81222; 81299 | 2022 | Active | SA1 |
| MASSE CONSTRUCTION LIMITED | 43290 · other construction installation | 2022 | Active | SA1 |
| MHT CONSTRUCTION LIMITED | 43290 · other construction installation | 2023 | Active - Proposal to Strike off | SA1 |
| MONOLITHIC BRICKLAYING CO. LTD | 43290 · other construction installation; 43390; 43999 | 2002 | Active | SA1 |
| MORRISTON ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2018 | Active - Proposal to Strike off | SA1 |
| MV VOLTMASTERS LTD | 43210 · electrical installation | 2025 | Active | SA1 |
| MYLESJENKINS ELECTRICAL LIMITED | 43210 · electrical installation | 2023 | Active | SA1 |
| NETFIT COMMUNICATIONS LIMITED | 43210 · electrical installation | 2019 | Liquidation | SA1 |
| NMULTITRADE LTD | 43290 · other construction installation; 41100; 41202; 43390 | 2026 | Active | SA1 |
| P COLLIER BUILDING LTD | 43290 · other construction installation | 2019 | Active | SA1 |
| PAUL MARSHALL 490 LTD | 43290 · other construction installation | 2023 | Liquidation | SA1 |
| PHILLIPS SERVICES (WALES) LIMITED | 43210 · electrical installation | 1969 | Active | SA1 |
| POLARIS ENGINEERING SERVICES LTD | 43210 · electrical installation; 71129 | 2022 | Active | SA1 |
| PRO SPEC INTERIORS LIMITED | 43290 · other construction installation | 2001 | Active | SA1 |
| R J BRICKWORK LTD | 43290 · other construction installation | 2020 | Active | SA1 |
| RB ELECTRICAL SWANSEA LTD | 43210 · electrical installation | 2015 | Liquidation | SA1 |
| RICHARD WILLIAMS ELECTRICAL LIMITED | 43210 · electrical installation | 2008 | Active | SA1 |
| ROBINSON'S LIGHTING & ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2023 | Active | SA1 |
| SEAN LTD | 43210 · electrical installation | 2010 | Active | SA1 |
| SIG INDUSTRIAL SOLUTIONS LTD | 43210 · electrical installation | 2003 | Liquidation | SA1 |
| SJC ELECTRICAL SERVICES BRISTOL LTD | 43210 · electrical installation | 2010 | Liquidation | SA1 |
| SOLARCENTRIC RENEWABLES LIMITED | 43210 · electrical installation | 2020 | Active | SA1 |
| SPK PROPERTY SOLUTIONS LTD | 43210 · electrical installation; 43310; 43341; 81210 | 2019 | Liquidation | SA1 |
| START SMART ELECTRICAL LIMITED | 43210 · electrical installation | 2021 | Liquidation | SA1 |
| SWANSEA ELECTRICAL SOLUTIONS LTD | 43210 · electrical installation | 2021 | Active | SA1 |
| SYMLEC ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2015 | Liquidation | SA1 |
| TCT GROUNDWORKS LTD | 43290 · other construction installation | 2017 | Liquidation | SA1 |
| TIDI-CABLE PRODUCTS (UK) LIMITED | 43210 · electrical installation | 2019 | Liquidation | SA1 |
| TONDO DESIGN & BUILD LIMITED | 43290 · other construction installation | 2018 | Active | SA1 |
| TRUCORE BUILD GROUP LTD | 43290 · other construction installation; 41100; 43390 | 2025 | Active | SA1 |
| UK MEZZANINE DIRECT LTD | 43290 · other construction installation; 43320; 43390 | 2022 | Active | SA1 |
| ULEX ENERGY LTD | 43210 · electrical installation; 43910 | 2025 | Active | SA1 |
| VENTURETECH ELECTRICAL LIMITED | 43210 · electrical installation | 2022 | Active | SA1 |
| WANDERING LIFESTYLE LTD | 43210 · electrical installation; 45200; 45320; 47910 | 2023 | Active | SA1 |
| WEST MIDLANDS ELECTRICAL LTD | 43210 · electrical installation | 2013 | Liquidation | SA1 |
| WLL WANDERER HOLDING LTD | 43210 · electrical installation; 45200; 45320 | 2026 | Active | SA1 |
What homes around SA1 need
In SA1 last summer (2026) there were ≈6 nights that stayed above 18 °C — 9 times the 1991–2020 average of 0.7 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
9% of sampled postcodes in SA1 sit in a conservation area (on-record, 1,299 live postcodes).
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 for SA1, June–August, minimum at or above 18 °C, retrieved 25 Sep 2026. Conservation-area share: sampled postcode points in SA1, snapshot 25 Sep 2026.
Better than a town-wide list: these are the registered offices in SA1, with that district's hot nights and planning rule.