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E3: plumbing, heating and air-conditioning companies in London
E3 (London) has 28 plumbing, heating and air-conditioning companies registered here (SIC 43220) and 22 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, E3 had ≈10 nights above 18 °C in 2026 (5 times the 1991–2020 average of 1.9).
E3
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360 ENGINEERS LTD, incorporated 2025, status Active.
Plumbing, heating and air-conditioning companies
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| 24 HOUR ELECTRICIAN LTD | 43210 · electrical installation | 2023 | Active | E3 |
| ASTORIA FIRE AND SECURITY LTD | 43210 · electrical installation | 2020 | Active | E3 |
| BRIKOR LTD | 43290 · other construction installation; 43999 | 2025 | Active | E3 |
| CERTI ELECTRIC GROUP LTD | 43210 · electrical installation; 71129; 71200 | 2026 | Active | E3 |
| CROWLEY ELECTRICS LTD | 43210 · electrical installation | 2026 | Active | E3 |
| CURRENTVIBE LTD | 43210 · electrical installation | 2025 | Active | E3 |
| EAST LONDON ELECTRICIANS LIMITED | 43210 · electrical installation | 2024 | Active | E3 |
| ELEKTRIC-ON LTD. | 43210 · electrical installation; 41202 | 2009 | Active | E3 |
| JAY KAY CONSULTING LTD | 43290 · other construction installation; 70100; 70229; 82990 | 2011 | Active | E3 |
| KK MULTITRADE SERVICES LTD | 43210 · electrical installation; 96090 | 2020 | Active | E3 |
| LATIN DREAM LIMITED | 43210 · electrical installation; 43310; 43341; 81210 | 2022 | Active - Proposal to Strike off | E3 |
| ML ELECTRICIAN LTD | 43210 · electrical installation | 2023 | Active | E3 |
| MSY BUILDS LTD | 43290 · other construction installation; 41202 | 2026 | Active | E3 |
| PJL SCENERY LIMITED | 43290 · other construction installation | 2025 | Active | E3 |
| POWERHOUSE MAINTENANCE LTD | 43210 · electrical installation; 41202; 43330; 43341 | 2016 | Active | E3 |
| PROJOB LONDON LTD | 43290 · other construction installation | 2024 | Active | E3 |
| PROSAFETYCERTIFICATES LTD | 43210 · electrical installation; 98000 | 2024 | Active | E3 |
| QUADONOMY LTD | 43290 · other construction installation; 43310 | 2022 | Active | E3 |
| S&Y CONSTRUCTION SERVICES LTD | 43210 · electrical installation | 2018 | Active - Proposal to Strike off | E3 |
| SBUL LTD | 43290 · other construction installation; 43999; 68320; 73110 | 2022 | Active | E3 |
| TEMPLE BLAKE LIMITED | 43290 · other construction installation | 2010 | Active | E3 |
| VISIONARY CONSTRUCTION & MANAGEMENT LTD | 43290 · other construction installation; 41202; 68320 | 2024 | Active | E3 |
What homes around E3 need
In E3 last summer (2026) there were ≈10 nights that stayed above 18 °C — 5 times the 1991–2020 average of 1.9 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
28% of sampled postcodes in E3 sit in a conservation area (on-record, 1,174 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 E3, June–August, minimum at or above 18 °C, retrieved 25 Sep 2026. Conservation-area share: sampled postcode points in E3, snapshot 25 Sep 2026.
Better than a town-wide list: these are the registered offices in E3, with that district's hot nights and planning rule.