Hants: plumbing, heating and air-conditioning companies
Hants has 1 plumbing, heating and air-conditioning companies (SIC 43220) and 3 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 GU12, summer 2026 had ≈9 nights above 18 °C there (6 times the 1991–2020 average of 1.4).
SIC 43220
Open a company
DESIGN HEAT WINCHESTER LIMITED, incorporated 1973, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| DESIGN HEAT WINCHESTER LIMITED | 1973 | Active | SO23 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| J.B.CORRIE AND COMPANY LIMITED | 43290 · other construction installation; 25110; 80200 | 1925 | Active | GU32 |
| CRS SPECIALISED BUILDING SERVICES LTD | 43210 · electrical installation; 43310; 43999 | 1994 | Active | PO12 |
| ADVANCED ELECTRICAL CONTRACTORS SOUTH EAST LTD | 43210 · electrical installation | 2007 | Active | GU12 |
Heat and planning around Hants
In Hants last summer (2026) there were ≈12.7 nights that stayed above 18 °C — 6 times the 1991–2020 average of 2.0 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities). The figure is the household-weighted mean of 4 postcode districts where these offices are registered.
22% of sampled postcodes in Hants sit in a conservation area (3,223 live postcodes across 4 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.