Home / Installers / London
WC1H: plumbing, heating and air-conditioning companies in London
WC1H (London) has 11 plumbing, heating and air-conditioning companies registered here (SIC 43220) and 9 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, WC1H had ≈12 nights above 18 °C in 2026 (8 times the 1991–2020 average of 1.6).
WC1H
Open a company
BUILD CORP LIMITED, incorporated 2026, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| BUILD CORP LIMITED | 2026 | Active | WC1H |
| HOMETREE MARKETPLACE LIMITED | 2015 | Active | WC1H |
| HPH SERVICES LTD | 2025 | Active | WC1H |
| HTG FINANCE 1 LIMITED | 2020 | Active - Proposal to Strike off | WC1H |
| HTG FINANCE LIMITED | 2018 | Active | WC1H |
| JOHNSON PLUMBING SERVICES LTD | 2024 | Active | WC1H |
| JON WARD DESIGN LIMITED | 2012 | Active | WC1H |
| PEACHY PLUMB LTD | 2023 | Active | WC1H |
| QC HEATING LTD | 2025 | Active | WC1H |
| SALISBURY PLUMBING & HEATING LTD | 2022 | Active | WC1H |
| SOUTHERN GAS LTD | 2023 | Active | WC1H |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| A & N ELECTRICAL LTD | 43210 · electrical installation | 2026 | Active | WC1H |
| ANT THOMAS LTD | 43210 · electrical installation | 2025 | Active | WC1H |
| ARA DESIGN (INTERNATIONAL) LIMITED | 43290 · other construction installation; 74100 | 2002 | Active | WC1H |
| CLAYSTONE COMMERCIAL LTD | 43210 · electrical installation; 71129 | 2026 | Active | WC1H |
| DPC PROPERTY SERVICES LTD | 43290 · other construction installation; 41201; 41202 | 2024 | Active | WC1H |
| HOMESREVIVE LTD | 43210 · electrical installation; 33140; 47540; 95220 | 2025 | Active | WC1H |
| MARCHEEK LIMITED | 43290 · other construction installation; 74100 | 2021 | Active | WC1H |
| MARYLEBONE INTERIORS LONDON LTD | 43290 · other construction installation; 43310; 43320; 43341 | 2012 | Active | WC1H |
| PROMERGON UK LTD | 43210 · electrical installation; 42220; 42990; 71129 | 2025 | Active | WC1H |
What homes around WC1H need
In WC1H 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).
89% of sampled postcodes in WC1H sit in a conservation area (on-record, 306 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 WC1H, June–August, minimum at or above 18 °C, retrieved 25 Sep 2026. Conservation-area share: sampled postcode points in WC1H, snapshot 25 Sep 2026.
Better than a town-wide list: these are the registered offices in WC1H, with that district's hot nights and planning rule.