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SA3: plumbing, heating and air-conditioning companies in Swansea
SA3 (Swansea) has 8 plumbing, heating and air-conditioning companies registered here (SIC 43220) and 16 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, SA3 had ≈14 nights above 18 °C in 2026 (10 times the 1991–2020 average of 1.4).
SA3
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ENERGY PANEL UK LTD, incorporated 2020, status Active - Proposal to Strike off.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| ENERGY PANEL UK LTD | 2020 | Active - Proposal to Strike off | SA3 |
| GOWER REFRIGERATION AND AIR CONDITIONING LTD | 2026 | Active | SA3 |
| LIMITLESS ENERGY LTD | 2016 | Active | SA3 |
| MUMBLES GAS SERVICES LTD | 2015 | Active | SA3 |
| SORTED! GAS LTD | 2014 | Active - Proposal to Strike off | SA3 |
| SOUTH COAST PLUMBING & HEATING LTD | 2012 | Active | SA3 |
| SOUTH COAST PROPERTY MAINTENANCE LTD | 2024 | Active | SA3 |
| TGHC GROUP LTD | 2024 | Active | SA3 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| ALLVOLT ELECTRICAL LTD | 43210 · electrical installation | 2024 | Active | SA3 |
| ENERGYWISE-WALES LIMITED | 43290 · other construction installation | 2012 | Active | SA3 |
| FOX SOLAR LTD | 43210 · electrical installation | 2023 | Active | SA3 |
| GOWER BUILDING SERVICES LIMITED | 43290 · other construction installation | 2024 | Active | SA3 |
| GOWER HOMES ELECTRICAL LTD | 43210 · electrical installation; 33140 | 2025 | Active | SA3 |
| GOWER RENEWABLES LIMITED | 43210 · electrical installation | 2024 | Active | SA3 |
| JAMES CONTRACT SERVICES LTD | 43210 · electrical installation; 43290 · other construction installation; 33190 | 2012 | Active | SA3 |
| M & M`S ELECTRICAL CO. LTD | 43210 · electrical installation | 2009 | Active | SA3 |
| MJB ELECTRICAL & SOLAR SERVICES LTD | 43210 · electrical installation | 2012 | Active | SA3 |
| MJW ELECTRICAL (UK) LTD | 43210 · electrical installation | 2009 | Active | SA3 |
| NATEC ELECTRICAL SOLUTIONS LIMITED | 43210 · electrical installation | 2013 | Active | SA3 |
| NDW ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2015 | Active | SA3 |
| NOVAGRID ENERGY LIMITED | 43210 · electrical installation; 35110; 35140; 70229 | 2026 | Active | SA3 |
| O'BRIEN'S ELECTRICAL SERVICES SW LIMITED | 43210 · electrical installation | 2023 | Active | SA3 |
| QUALITY TILING SERVICES LTD | 43290 · other construction installation | 2025 | Active | SA3 |
| WAVE ENERGY LTD | 43210 · electrical installation | 2026 | Active | SA3 |
What homes around SA3 need
In SA3 last summer (2026) there were ≈14 nights that stayed above 18 °C — 10 times the 1991–2020 average of 1.4 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
19% of sampled postcodes in SA3 sit in a conservation area (on-record, 727 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 SA3, June–August, minimum at or above 18 °C, retrieved 25 Sep 2026. Conservation-area share: sampled postcode points in SA3, snapshot 25 Sep 2026.
Better than a town-wide list: these are the registered offices in SA3, with that district's hot nights and planning rule.