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SW12: plumbing, heating and air-conditioning companies in London
SW12 (London) 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, SW12 had ≈12 nights above 18 °C in 2026 (8 times the 1991–2020 average of 1.6).
SW12
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FIRST PLUMBING & HEATING (GOC) LIMITED, incorporated 2016, status Liquidation.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| FIRST PLUMBING & HEATING (GOC) LIMITED | 2016 | Liquidation | SW12 |
| FPHL FACILITY'S MANAGEMENT LTD | 2020 | Active | SW12 |
| MAPLE MECHANICAL LIMITED | 2023 | Active | SW12 |
| MAXWELL HEATING LIMITED | 2011 | Active | SW12 |
| MOC HEATING LTD | 2010 | Active | SW12 |
| OMEGA PLUMBING LTD | 2020 | Active | SW12 |
| REMON MAINTENANCE GROUP LTD | 2026 | Active | SW12 |
| WHEELER HEATING AND PLUMBING LTD | 2026 | Active | SW12 |
| WOLF BURPOW PRODUCTIONS LTD | 2025 | Active | SW12 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| 24/7 POWERUP ELECTRICAL LTD | 43210 · electrical installation | 2024 | Active | SW12 |
| BALHAM PROPERTY CONSULTANCY LTD | 43290 · other construction installation; 41100; 41201; 43999 | 2015 | Active | SW12 |
| CLAPHAM SCAFFOLDING SERVICES LTD | 43290 · other construction installation | 2020 | Active | SW12 |
| EXTENSIONS LONDON LIMITED | 43290 · other construction installation; 41202; 43390 | 2020 | Active | SW12 |
| HOTMETALFAB LTD | 43290 · other construction installation | 2015 | Active | SW12 |
| INSULATORWORKS LIMITED | 43290 · other construction installation | 2024 | Active - Proposal to Strike off | SW12 |
| JUNK TRUCK LTD | 43290 · other construction installation | 2007 | Active | SW12 |
| L E ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2007 | Active | SW12 |
| LOFTS LONDON LIMITED | 43290 · other construction installation; 43390 | 2007 | Active | SW12 |
| MCC CREATIVE SOLUTIONS LTD | 43210 · electrical installation; 96090 | 2025 | Active | SW12 |
| MIGOM LTD | 43290 · other construction installation; 43320; 43390; 47789 | 2013 | Active | SW12 |
| MR WILSON LC LTD | 43290 · other construction installation | 2024 | Active | SW12 |
| NSS CONSTRUCTION LTD | 43290 · other construction installation; 41202; 43310; 43341 | 2012 | Active | SW12 |
| PCJS NICOL ELECTRICAL LIMITED | 43210 · electrical installation | 2025 | Active - Proposal to Strike off | SW12 |
| REDWOOD CONTRACTORS LIMITED | 43290 · other construction installation | 2009 | Active | SW12 |
What homes around SW12 need
In SW12 last summer (2026) there were ≈12 nights that stayed above 18 °C — 8 times the 1991–2020 average of 1.6 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
20% of sampled postcodes in SW12 sit in a conservation area (on-record, 594 live postcodes).
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 for SW12, June–August, minimum at or above 18 °C, retrieved 25 Sep 2026. Conservation-area share: sampled postcode points in SW12, snapshot 25 Sep 2026.
Better than a town-wide list: these are the registered offices in SW12, with that district's hot nights and planning rule.