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HA5: plumbing, heating and air-conditioning companies in London
HA5 (London) has 0 plumbing, heating and air-conditioning companies registered here (SIC 43220) and 3 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, HA5 had ≈10 nights above 18 °C in 2026 (7 times the 1991–2020 average of 1.5).
HA5
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0 plumbing companies in this district. HA5 district
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| No SIC 43220 company in this district | — | — | — |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| 21 BRIDGE STREET DEVELOPMENT LTD | 43290 · other construction installation; 41100 | 2026 | Active | HA5 |
| INOVA DC LTD | 43290 · other construction installation; 63110; 74100 | 2023 | Active | HA5 |
| PETERSFIELD AVENUE DEVELOPMENTS LTD | 43290 · other construction installation; 41100; 68100; 68209 | 2025 | Active | HA5 |
What homes around HA5 need
In HA5 last summer (2026) there were ≈10 nights that stayed above 18 °C — 7 times the 1991–2020 average of 1.5 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
11% of sampled postcodes in HA5 sit in a conservation area (on-record, 1,094 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 HA5, June–August, minimum at or above 18 °C, retrieved 25 Sep 2026. Conservation-area share: sampled postcode points in HA5, snapshot 25 Sep 2026.
Better than a town-wide list: these are the registered offices in HA5, with that district's hot nights and planning rule.