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NW3: plumbing, heating and air-conditioning companies in London
NW3 (London) has 22 plumbing, heating and air-conditioning companies registered here (SIC 43220) and 31 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, NW3 had ≈12 nights above 18 °C in 2026 (8 times the 1991–2020 average of 1.6).
NW3
Open a company
1066DPS LIMITED, incorporated 2025, status Active.
Plumbing, heating and air-conditioning companies
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| 008 BOLTIX LTD | 43210 · electrical installation; 71122 | 2026 | Active | NW3 |
| BLUEROCK ELECTRICAL LIMITED | 43210 · electrical installation | 2006 | Active | NW3 |
| DARAB CONSTRUCTIONS LTD | 43210 · electrical installation; 41201; 41202; 43999 | 2020 | Active | NW3 |
| ELCO BUILDING SERVICES LIMITED | 43210 · electrical installation | 1999 | Active | NW3 |
| ELECPLUMB EUROPE LTD | 43210 · electrical installation; 46740 | 2021 | Active | NW3 |
| ELECPLUMB GROUP LTD | 43210 · electrical installation; 46740 | 2021 | Active | NW3 |
| ELECTRIC PRIME LTD | 43210 · electrical installation | 2023 | Active | NW3 |
| FIRST SOLAR PV LIMITED | 43290 · other construction installation | 2017 | Active | NW3 |
| HAMPSTEAD DEVELOPERS LIMITED | 43290 · other construction installation; 41201; 41202 | 2024 | Active | NW3 |
| HAMPSTEAD RENOVATIONS GROUP LIMITED | 43290 · other construction installation | 2024 | Active | NW3 |
| JOJU CHARGING NETWORK LIMITED | 43290 · other construction installation; 35110 | 2018 | Active | NW3 |
| JOJU LIMITED | 43290 · other construction installation; 35110 | 2006 | Active | NW3 |
| JOJU SOLAR LIMITED | 43290 · other construction installation; 35110 | 2016 | Active | NW3 |
| KEY CONSULTING LTD | 43290 · other construction installation | 2024 | Active | NW3 |
| LIRIELECTRICAL LTD | 43210 · electrical installation | 2025 | Active | NW3 |
| LONDON KITCHENS DESIGN LTD | 43290 · other construction installation; 47540; 47599; 74100 | 2023 | Active | NW3 |
| LONDONBUILDERS4U LTD | 43290 · other construction installation | 2021 | Active | NW3 |
| M D ELECTRICIANS LIMITED | 43210 · electrical installation | 2015 | Active | NW3 |
| MASAR TRADING & SERVICES LIMITED | 43210 · electrical installation; 25990; 46900; 71129 | 2024 | Active - Proposal to Strike off | NW3 |
| MODERN LIVING PROPERTY SERVICES LIMITED | 43290 · other construction installation; 95290 | 2008 | Active | NW3 |
| MONACO CONSTRUCTION LIMITED | 43210 · electrical installation; 41202; 43341 | 2025 | Active | NW3 |
| MORENO ELECTRICAL LIMITED | 43210 · electrical installation | 2015 | Active | NW3 |
| NW3 INSTALLATIONS LIMITED | 43290 · other construction installation | 2021 | Active | NW3 |
| PERFECT LANDSCAPE CONTRACTORS LTD | 43290 · other construction installation; 81300 | 2026 | Active | NW3 |
| PORTO SPACES LIMITED | 43290 · other construction installation; 43320; 46470; 74100 | 2024 | Active | NW3 |
| SKYBORG LTD | 43210 · electrical installation; 70229; 71121; 71122 | 2016 | Active | NW3 |
| STONEVIEW SERVICES LIMITED | 43210 · electrical installation | 2002 | Active | NW3 |
| T&C ELECTRICAL SOLUTIONS LTD | 43210 · electrical installation | 2021 | Active | NW3 |
| THOMAS NAGY LIMITED | 43210 · electrical installation | 2017 | Active | NW3 |
| TWOFORM LIMITED | 43290 · other construction installation | 2005 | Active | NW3 |
| VP ELECTRIX LTD | 43210 · electrical installation | 2023 | Active | NW3 |
What homes around NW3 need
In NW3 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).
76% of sampled postcodes in NW3 sit in a conservation area (on-record, 1,318 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 NW3, June–August, minimum at or above 18 °C, retrieved 25 Sep 2026. Conservation-area share: sampled postcode points in NW3, snapshot 25 Sep 2026.
Better than a town-wide list: these are the registered offices in NW3, with that district's hot nights and planning rule.