Harrow Weald: plumbing, heating and air-conditioning companies
Harrow Weald has 1 plumbing, heating and air-conditioning companies (SIC 43220) and 0 electrical and other installation companies registered here (Companies House, 1 Sep 2026); 0 are MCS-certified for air-to-air yet. If the office is in HA3, summer 2026 had ≈12 nights above 18 °C there (8 times the 1991–2020 average of 1.6).
SIC 43220
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M.Y. PLUMBING LTD, incorporated 2018, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| M.Y. PLUMBING LTD | 2018 | Active | HA3 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| No SIC 43210 or 43290 company in this town | — | — | — | — |
Nearest plumbing companies within 25 km
8,377 plumbing companies (SIC 43220) have a registered office within 25 km. The nearest 10 are listed.
| Company | Number | District | Distance |
|---|---|---|---|
| VHL FACILITIES LIMITED | 08138470 | HA3 | ≈0.4 km |
| OK PLUMBING AND HEATING LIMITED | 12991900 | HA3 | ≈0.4 km |
| PLATINUM HEATING LIMITED | 07524738 | HA3 | ≈0.5 km |
| CG PLUMBING (HERTS) LIMITED | 13714808 | HA3 | ≈0.5 km |
| GJM SOUTHERN GROUP LTD | 09432720 | HA7 | ≈0.5 km |
| KEATES PIPEWORK INSTALLATION LIMITED | 10578122 | HA7 | ≈0.5 km |
| N.CARR ENGINEERING LIMITED | 10630348 | HA7 | ≈0.5 km |
| G & M MECHANICAL SERVICES LTD. | 10721438 | HA7 | ≈0.5 km |
| FD MECHANICAL LIMITED | 12055301 | HA7 | ≈0.5 km |
| I-VENTILATION LTD | 12328859 | HA7 | ≈0.5 km |
Heat and planning around Harrow Weald
In Harrow Weald 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). The figure is the household-weighted mean of 1 postcode districts where these offices are registered.
4% of sampled postcodes in Harrow Weald sit in a conservation area (1,261 live postcodes across 1 districts).
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, June–August, minimum at or above 18 °C, household-weighted across the districts where these offices are registered, retrieved 25 Sep 2026. Conservation-area share: sampled postcode points, snapshot 25 Sep 2026. Distances are an equirectangular approximation to 0.1 km.
Better than a town directory that only lists names: each plumbing company links to its Companies House record and the local hot-night count.