Chorleywood: plumbing, heating and air-conditioning companies
Chorleywood has 7 plumbing, heating and air-conditioning companies (SIC 43220) and 7 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 WD3, summer 2026 had ≈10 nights above 18 °C there (8 times the 1991–2020 average of 1.3).
SIC 43220
Open a company
AQUA & GAS (LONDON) LTD, incorporated 2011, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| AQUA & GAS (LONDON) LTD | 2011 | Active | WD3 |
| FIRST CLASS PLUMBING LTD | 2018 | Active | WD3 |
| LONDON REPAIR MAINTENANCE LTD | 2025 | Active | WD3 |
| SAFE GAS HEATING & PLUMBING LTD | 2009 | Active | WD3 |
| SMY PROPERTY SERVICES LIMITED | 1984 | Active | WD3 |
| T & D PLUMBING & HEATING LTD | 2023 | Active | WD3 |
| INTEGRATED INSTALLATIONS LIMITED | 2008 | Active - Proposal to Strike off | WD3 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| C RAIL LTD | 43210 · electrical installation | 2019 | Active | WD3 |
| HERTFORDSHIRE ELECTRICAL CONTRACTORS LTD | 43210 · electrical installation | 2019 | Active | WD3 |
| MATTHEW SMITH ELECTRICAL CONTRACTORS LTD | 43210 · electrical installation | 2018 | Active | WD3 |
| MNM CONSTRUCTION LTD | 43290 · other construction installation | 2020 | Active | WD3 |
| T SPARKS ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2015 | Active | WD3 |
| FITZGERALD ELECTRICAL & SECURITY SYSTEMS LIMITED | 43210 · electrical installation; 33140; 80200 | 2017 | Active | WD3 |
| SPR ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2016 | Active - Proposal to Strike off | WD3 |
Heat and planning around Chorleywood
In Chorleywood last summer (2026) there were ≈10 nights that stayed above 18 °C — 8 times the 1991–2020 average of 1.3 (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.
22% of sampled postcodes in Chorleywood sit in a conservation area (1,279 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.