Harold Hill: plumbing, heating and air-conditioning companies
Harold Hill has 1 plumbing, heating and air-conditioning companies (SIC 43220) and 1 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 RM3, summer 2026 had ≈10 nights above 18 °C there (4 times the 1991–2020 average of 2.3).
SIC 43220
Open a company
IDEAL HOME MAINTENANCE LTD, incorporated 2016, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| IDEAL HOME MAINTENANCE LTD | 2016 | Active | RM3 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| DAY LANDSCAPING AND PROPERTY SERVICES LTD | 43290 · other construction installation; 43310; 43330; 43390 | 2022 | Active | RM3 |
Nearest plumbing companies within 25 km
6,809 plumbing companies (SIC 43220) have a registered office within 25 km. The nearest 10 are listed.
| Company | Number | District | Distance |
|---|---|---|---|
| TOGGAR HEAT & AIR-CON LTD | 13331599 | RM3 | ≈0.2 km |
| PHOENIX PLUMBING SERVICES LIMITED | 11388038 | RM3 | ≈0.3 km |
| JT COMPLETE SERVICES LIMITED | 14839721 | RM3 | ≈0.3 km |
| LAXTON PROJECTS LIMITED | 16371281 | RM3 | ≈0.4 km |
| CONSIMMONS MECHATRONICS LTD | 11648308 | RM3 | ≈0.6 km |
| MARSHAM PLUMBING & HEATING LTD | 11560470 | RM3 | ≈0.6 km |
| MASTER PLUMBING LTD | 13741074 | RM3 | ≈0.6 km |
| EBG MECHANICAL LTD | 15945002 | RM3 | ≈0.7 km |
| CORTEX PLUMBING & HEATING ENGINEERING LTD | 10505229 | RM3 | ≈0.8 km |
| T AND K PLUMBING LTD | 13219538 | RM3 | ≈0.9 km |
Heat and planning around Harold Hill
In Harold Hill last summer (2026) there were ≈10 nights that stayed above 18 °C — 4 times the 1991–2020 average of 2.3 (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.
0% of sampled postcodes in Harold Hill sit in a conservation area (923 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.