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EC3V: plumbing, heating and air-conditioning companies in London
EC3V (London) has 15 plumbing, heating and air-conditioning companies registered here (SIC 43220) and 26 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, EC3V had ≈10 nights above 18 °C in 2026 (5 times the 1991–2020 average of 1.9).
EC3V
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ADG PLUMBING & HEATING LIMITED, incorporated 2010, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| ADG PLUMBING & HEATING LIMITED | 2010 | Active | EC3V |
| ALL ROUND BUILDERS LTD | 2026 | Active | EC3V |
| AORO ENERGY LTD | 2023 | Active | EC3V |
| BEELOGIC IT LIMITED | 2025 | Active | EC3V |
| CAPITAL HIU ENGINEERS LIMITED | 2021 | Active | EC3V |
| CITADEL MECHANICAL LTD | 2026 | Active | EC3V |
| DRAINSMART LIMITED | 2004 | Active | EC3V |
| HAK PROJECTS LIMITED | 2017 | Active | EC3V |
| HEATCARE PLUMBING AND HEATING ENGINEERS LIMITED | 2002 | Active | EC3V |
| HYLAND PLUMBING LTD | 2010 | Active | EC3V |
| KCS ELECTRICS LTD | 2011 | Active | EC3V |
| M.S ELITE PLUMBING & HEATING LTD | 2025 | Active | EC3V |
| PLEASANT PLUMBERS LIMITED | 2022 | Active | EC3V |
| VERDANT POWER LTD | 2025 | Active | EC3V |
| WATERLINE PLUMBING & HEATING LIMITED | 2010 | Active | EC3V |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| AMZCO CONSTRUCTION LIMITED | 43290 · other construction installation | 2018 | Liquidation | EC3V |
| DELTAWATT LTD | 43210 · electrical installation | 2024 | Active | EC3V |
| ELITE ENGINEERS LTD | 43210 · electrical installation | 2018 | Active | EC3V |
| ESSEX & KENT ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2017 | Active | EC3V |
| ESSEX VENTILATION SERVICES LTD | 43290 · other construction installation | 2002 | Active | EC3V |
| F AND F ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2026 | Active | EC3V |
| FAIRDEAL ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2023 | Active | EC3V |
| FOIRFE FLOORING UK LIMITED | 43290 · other construction installation | 2022 | Active | EC3V |
| GJ FIRE LTD | 43210 · electrical installation | 2023 | Active | EC3V |
| GRANDLEY LIMITED | 43210 · electrical installation | 2008 | Active | EC3V |
| HAWKSMOOR PROPERTIES SERVICES LTD | 43290 · other construction installation; 55900; 68209 | 2022 | Active | EC3V |
| HGM WINDOWS LTD | 43290 · other construction installation; 43342 | 2020 | Active | EC3V |
| JOURNEY ENERGY SOLUTIONS LIMITED | 43210 · electrical installation; 70229 | 2020 | Active | EC3V |
| MILMAN SERVICES LTD | 43290 · other construction installation; 69202; 70229 | 2026 | Active | EC3V |
| MONOLITH ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2025 | Active | EC3V |
| S A S ELECTRICAL (ELLESMERE) LIMITED | 43210 · electrical installation | 2022 | Active | EC3V |
| SN SOLAR LIMITED | 43210 · electrical installation; 43290 · other construction installation; 42220; 43910 | 2025 | Active - Proposal to Strike off | EC3V |
| SOURCE INT HQ LTD | 43210 · electrical installation; 43290 · other construction installation; 62090 | 2016 | Active | EC3V |
| SQUARE MILE FIRE PROTECTION LTD | 43210 · electrical installation | 2014 | Active | EC3V |
| STELLA BUILDING SERVICES LTD | 43210 · electrical installation | 2026 | Active | EC3V |
| SWITCHD LTD | 43210 · electrical installation; 42220; 63990; 96090 | 2016 | Active | EC3V |
| THE POINT SERVICES GROUP LTD | 43210 · electrical installation | 2025 | Active | EC3V |
| TRUEWATT LTD | 43210 · electrical installation; 46690; 46900; 47910 | 2026 | Active | EC3V |
| TULCAN ENERGY RESOURCES UK LTD. | 43210 · electrical installation; 09100; 35140 | 2017 | Active | EC3V |
| WHEELERS ELECTRICAL LTD | 43210 · electrical installation | 2024 | Active | EC3V |
| ZONE INTERIORS GROUP LIMITED | 43290 · other construction installation | 2019 | Active | EC3V |
What homes around EC3V need
In EC3V 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).
78% of sampled postcodes in EC3V sit in a conservation area (on-record, 78 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 EC3V, June–August, minimum at or above 18 °C, retrieved 25 Sep 2026. Conservation-area share: sampled postcode points in EC3V, snapshot 25 Sep 2026.
Better than a town-wide list: these are the registered offices in EC3V, with that district's hot nights and planning rule.