Old Windsor: plumbing, heating and air-conditioning companies
Old Windsor 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 SL4, summer 2026 had ≈11 nights above 18 °C there (8 times the 1991–2020 average of 1.4).
SIC 43220
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WARMED UP! HEATING LTD, incorporated 2019, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| WARMED UP! HEATING LTD | 2019 | Active | SL4 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| DSPR CONSTRUCTION LIMITED | 43290 · other construction installation | 2021 | Active | SL4 |
Nearest plumbing companies within 25 km
3,687 plumbing companies (SIC 43220) have a registered office within 25 km. The nearest 10 are listed.
| Company | Number | District | Distance |
|---|---|---|---|
| 247 PLUMBING AND HEATING 1 LTD | 09263032 | SL4 | ≈0.2 km |
| COOLTECH BUILDING SERVICES LTD | 02997081 | SL4 | ≈0.2 km |
| NTB PLUMBING & HEATING LTD LTD | 15713500 | SL4 | ≈0.5 km |
| EDMONDS & SONS PLUMBING, HEATING & BATHROOMS LIMITED | 17278761 | SL4 | ≈0.5 km |
| LONDON BUILDING SERVICES MANAGEMENT LTD | 17269008 | SL4 | ≈0.5 km |
| ST HANSON HOMES LIMITED | 05063732 | SL4 | ≈0.6 km |
| KS BOILERS SERVICES LTD | 16561575 | SL4 | ≈0.6 km |
| PIPEOLOGIST LTD | 17057753 | TW19 | ≈1.5 km |
| LH PREMIER PROPERTY SERVICES LIMITED | 09208269 | SL4 | ≈2.5 km |
| ARTEM PLUMBING AND HEATING LTD | 14012655 | TW20 | ≈2.8 km |
Heat and planning around Old Windsor
In Old Windsor last summer (2026) there were ≈11 nights that stayed above 18 °C — 8 times the 1991–2020 average of 1.4 (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.
1% of sampled postcodes in Old Windsor sit in a conservation area (1,376 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.