Cosham: plumbing, heating and air-conditioning companies
Cosham has 8 plumbing, heating and air-conditioning companies (SIC 43220) and 11 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 PO6, summer 2026 had ≈27 nights above 18 °C there (9 times the 1991–2020 average of 2.9).
SIC 43220
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CPC ELECTRICAL AND MECHANICAL LTD, incorporated 2019, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| CPC ELECTRICAL AND MECHANICAL LTD | 2019 | Active | PO6 |
| FLARE PLUMBING & HEATING LTD | 2025 | Active | PO6 |
| GOLDRING PLUMBING & HEATING LIMITED | 2007 | Active | PO6 |
| M AND F AIR CONDITIONING LTD | 2009 | Active | PO6 |
| SIMER ENVIRONMENTAL SERVICES LIMITED | 1977 | Active | PO6 |
| SW GAS SERVICES LTD | 2020 | Active | PO6 |
| VINCENT HOME IMPROVEMENT LIMITED | 2017 | Active | PO6 |
| THANE GAS SERVICES LTD | 2013 | Active | PO6 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| A. VINCENT GROUNDWORKS LIMITED | 43290 · other construction installation | 1997 | Active | PO6 |
| A.T. PROJECTS (SOUTHERN) LIMITED | 43290 · other construction installation | 2014 | Active | PO6 |
| ADM RENOVATIONS & CONSTRUCTION LTD | 43290 · other construction installation | 2020 | Active | PO6 |
| DM ELECTRICAL CONTRACT SERVICES LTD | 43210 · electrical installation | 2018 | Active | PO6 |
| FAIR WINDS ELECTRICAL LTD | 43210 · electrical installation | 2023 | Active | PO6 |
| MOORE CONSTRUCTION (SOUTHERN) LIMITED | 43290 · other construction installation | 2010 | Active | PO6 |
| NETCOMM LTD | 43210 · electrical installation; 61100 | 2021 | Active | PO6 |
| PERFORMANCE DESIGN & CONSTRUCTION LTD | 43290 · other construction installation | 2025 | Active | PO6 |
| STREAMLINE ELECTRICAL CONTRACTORS LIMITED | 43210 · electrical installation | 2011 | Active | PO6 |
| GM FIRE & SECURITY LTD | 43210 · electrical installation | 2023 | Active | PO6 |
| BL ELECTRICAL SERVICES (SOUTHERN) LTD | 43210 · electrical installation | 2017 | Active | PO6 |
Heat and planning around Cosham
In Cosham last summer (2026) there were ≈27 nights that stayed above 18 °C — 9 times the 1991–2020 average of 2.9 (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.
0% of sampled postcodes in Cosham sit in a conservation area (916 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.