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W1C: plumbing, heating and air-conditioning companies in London
W1C (London) has 3 plumbing, heating and air-conditioning companies registered here (SIC 43220) and 6 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, W1C had ≈12 nights above 18 °C in 2026 (8 times the 1991–2020 average of 1.6).
W1C
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CAS ENERGIES SA LTD, incorporated 2026, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| CAS ENERGIES SA LTD | 2026 | Active | W1C |
| MECSOL EUROPE LTD. | 2022 | Active | W1C |
| MOJOO CONSTRUCTION LTD | 2025 | Active | W1C |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| AQUIND LIMITED | 43290 · other construction installation; 35120 | 2008 | Active | W1C |
| LEC PROJECTS LTD | 43290 · other construction installation; 41201; 41202 | 2021 | Active | W1C |
| LGTC LIMITED | 43210 · electrical installation; 41202; 61100 | 2020 | Active | W1C |
| LYNDON EDWARDS LTD | 43210 · electrical installation | 2017 | Active | W1C |
| PFX SERVICES LTD | 43290 · other construction installation; 38110; 78200; 82990 | 2025 | Active | W1C |
| SPECTRUM FIRE SAFETY LTD | 43290 · other construction installation | 2025 | Active | W1C |
What homes around W1C need
In W1C 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).
69% of sampled postcodes in W1C sit in a conservation area (on-record, 140 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 W1C, June–August, minimum at or above 18 °C, retrieved 25 Sep 2026. Conservation-area share: sampled postcode points in W1C, snapshot 25 Sep 2026.
Better than a town-wide list: these are the registered offices in W1C, with that district's hot nights and planning rule.