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SA9: plumbing, heating and air-conditioning companies in Swansea
SA9 (Swansea) has 9 plumbing, heating and air-conditioning companies registered here (SIC 43220) and 15 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, SA9 had ≈4 nights above 18 °C in 2026 (17 times the 1991–2020 average of 0.2).
SA9
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AYLES M.E.C LTD, incorporated 2023, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| AYLES M.E.C LTD | 2023 | Active | SA9 |
| CROWSFOOT HEATING SERVICES LTD | 2022 | Active | SA9 |
| DW-AIR LIMITED | 2018 | Active | SA9 |
| GRAHAM'S HEATING & PLUMBING LTD | 2010 | Active | SA9 |
| HS SERVICES PHG LTD | 2022 | Active | SA9 |
| JUST IN TIME PLUMBING, HEATING & BUILDING SERVICES LIMITED | 2006 | Active | SA9 |
| R L REES LTD | 2014 | Active | SA9 |
| TD HEATING SOLUTIONS LTD | 2026 | Active | SA9 |
| VALLEY HEATING & PLUMBING LTD | 2020 | Active | SA9 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| CHELCOR ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2015 | Active | SA9 |
| CLYNE INTERIOR & EXTERIOR DESIGN LIMITED | 43290 · other construction installation | 2006 | Active | SA9 |
| GL JAMES ELECTRICAL LTD | 43210 · electrical installation | 2023 | Active | SA9 |
| GOSNEY ELECTRICAL LIMITED | 43210 · electrical installation | 2025 | Active | SA9 |
| HINSON LIMITED | 43290 · other construction installation; 41100; 62012; 74909 | 2003 | Active | SA9 |
| KROLS BROTHERS LTD | 43290 · other construction installation; 68209 | 2015 | Active | SA9 |
| L J ENGINEERING LTD | 43210 · electrical installation | 2025 | Active | SA9 |
| LNAS SERVICES LTD | 43290 · other construction installation | 2021 | Active - Proposal to Strike off | SA9 |
| MDC CONSTRUCTION LIMITED | 43290 · other construction installation | 2013 | Active | SA9 |
| REEVES TECHNICAL SERVICES (NORTHANTS) LTD | 43210 · electrical installation | 2025 | Active - Proposal to Strike off | SA9 |
| ROSS MOULTON ELECTRICAL LIMITED | 43210 · electrical installation | 2017 | Active | SA9 |
| SAB (WALES) LIMITED | 43290 · other construction installation | 2012 | Active | SA9 |
| STONELAKE GROUP LTD | 43290 · other construction installation; 52103; 71122; 82990 | 2024 | Active | SA9 |
| THE NORTHEY LIGHTS LIMITED | 43210 · electrical installation; 47599; 56102; 71122 | 2018 | Active - Proposal to Strike off | SA9 |
| WARM HOMES ENERGY SOLUTIONS LTD | 43290 · other construction installation | 2025 | Active | SA9 |
What homes around SA9 need
In SA9 last summer (2026) there were ≈4 nights that stayed above 18 °C — 17 times the 1991–2020 average of 0.2 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
0% of sampled postcodes in SA9 sit in a conservation area (no-record-uncertain, 554 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 SA9, June–August, minimum at or above 18 °C, retrieved 25 Sep 2026. Conservation-area share: sampled postcode points in SA9, snapshot 25 Sep 2026.
Better than a town-wide list: these are the registered offices in SA9, with that district's hot nights and planning rule.