Walthamstow: plumbing, heating and air-conditioning companies
Walthamstow has 4 plumbing, heating and air-conditioning companies (SIC 43220) and 10 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 E17, summer 2026 had ≈10 nights above 18 °C there (5 times the 1991–2020 average of 1.9).
SIC 43220
Open a company
BLACK HORSE PLUMBING LIMITED, incorporated 2023, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| FLOW AND HEAT SOLUTIONS LTD | 2024 | Active | E17 |
| LIKE LOGS LTD | 2013 | Active | E17 |
| BLACK HORSE PLUMBING LIMITED | 2023 | Active | E17 |
| UK CONTRACTING CF98 LIMITED | 2015 | Active - Proposal to Strike off | E17 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| NHA ENTERPRISE LIMITED | 43290 · other construction installation; 74901 | 2020 | Active | E17 |
| FLUX ELECTRICIANS LIMITED | 43210 · electrical installation | 2019 | Active | E17 |
| I.B. ELECTRICAL (LONDON) LIMITED | 43210 · electrical installation | 2011 | Active | E17 |
| NOMEL FIRE SOLUTIONS LTD | 43290 · other construction installation | 2025 | Active | E17 |
| ZEUS ELECTRICAL CONSTRUCTIONS LTD | 43210 · electrical installation; 42990 | 2018 | Active | E17 |
| FUSEPOP LTD | 43210 · electrical installation | 2026 | Active | E17 |
| H & J EV SOLUTIONS LTD | 43210 · electrical installation | 2021 | Active | E17 |
| CHISU LTD | 43290 · other construction installation; 42120; 42990; 43310 | 2018 | Active | E17 |
| HENLEY ELECTRICALS LTD | 43210 · electrical installation | 2016 | Active | E17 |
| DESIGNER METAL PRODUCTS LIMITED | 43210 · electrical installation | 2007 | Active - Proposal to Strike off | E17 |
Heat and planning around Walthamstow
In Walthamstow last summer (2026) there were ≈10 nights that stayed above 18 °C — 5 times the 1991–2020 average of 1.9 (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.
5% of sampled postcodes in Walthamstow sit in a conservation area (1,529 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.