Winchester: plumbing, heating and air-conditioning companies
Winchester has 47 plumbing, heating and air-conditioning companies (SIC 43220) and 48 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 SO23, summer 2026 had ≈7 nights above 18 °C there (5 times the 1991–2020 average of 1.3).
SIC 43220
Open a company
A HAMMOND HEATING & PLUMBING LTD, incorporated 2024, status Active.
Plumbing, heating and air-conditioning companies
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| A-PLUS ELECTRICAL SYSTEMS LIMITED | 43210 · electrical installation | 2017 | Active | SO23 |
| BROADCHALK DOOR SERVICES LIMITED | 43290 · other construction installation | 2007 | Active | SO23 |
| MARINE OXYGEN SOLUTIONS LIMITED | 43290 · other construction installation | 2024 | Active | SO23 |
| MEDICAL GAS PIPELINES LTD | 43290 · other construction installation | 2006 | Active | SO23 |
| DNFR ASLAN LIMITED | 43210 · electrical installation; 43330; 43390; 96020 | 2025 | Active | SO23 |
| K & M FENCING LIMITED | 43290 · other construction installation | 2013 | Active | SO23 |
| MANOR ELECTRICAL & GARAGE SERVICES LIMITED | 43210 · electrical installation | 2014 | Active | SO23 |
| WINCHESTER KITCHENS INSTALLATIONS LTD | 43290 · other construction installation; 43320; 43999 | 2024 | Active | SO23 |
| EVERYTHING GREEN ENERGY LIMITED | 43210 · electrical installation | 2025 | Active | SO23 |
| RDB GREEN LIMITED | 43210 · electrical installation | 2012 | Active | SO23 |
| SPARK & WIRE LIMITED | 43210 · electrical installation; 74100 | 2020 | Active | SO23 |
| DCU LTD | 43290 · other construction installation | 2017 | Active | SO23 |
| RIG ELECTRICS LIMITED | 43210 · electrical installation | 2002 | Active | SO23 |
| SUPERYACHT INTERIORS (UK) LTD | 43290 · other construction installation | 2026 | Active | SO23 |
| ROSE ELECTRICAL SERVICES (RES) LTD | 43210 · electrical installation | 2025 | Active | SO23 |
| 240 VOLTZ LIMITED | 43210 · electrical installation | 2011 | Active | SO22 |
| CAMBRIDGE BUILDING SOLUTIONS LTD | 43290 · other construction installation; 43320; 43330; 43341 | 2022 | Active | SO23 |
| STAND TO ELECTRICAL LIMITED | 43210 · electrical installation | 2023 | Active | SO23 |
| I.S. SIMPSON ELECTRICAL INSTALLATIONS LTD | 43210 · electrical installation | 1997 | Active | SO23 |
| D T ELECTRICIANS LTD | 43210 · electrical installation | 2020 | Active | SO22 |
| JOR GROUNDWORKS AND DRIVEWAYS LTD | 43290 · other construction installation | 2024 | Active | SO22 |
| GLK INSTALLATIONS LIMITED | 43290 · other construction installation | 2002 | Active | SO22 |
| BRILLIANT WINDOW FILMS AND GRAPHICS LTD | 43290 · other construction installation | 2024 | Active | SO23 |
| DOORGEAR LTD. | 43290 · other construction installation; 43999 | 2002 | Active | SO22 |
| AP ELECTRICAL DESIGN LIMITED | 43210 · electrical installation | 2014 | Active | SO23 |
| JPEL LIMITED | 43210 · electrical installation | 2012 | Active | SO21 |
| SELENIUM SOLAR SOLUTIONS LTD | 43210 · electrical installation | 2025 | Active | SO23 |
| WINCHESTER WINDOWS & DOORS LTD | 43290 · other construction installation | 2025 | Active | SO23 |
| GARRISON FENCING LTD | 43290 · other construction installation | 2026 | Active | SO21 |
| SOUTH COAST FENCING LTD | 43290 · other construction installation; 16290 | 2020 | Active | SO21 |
| J. T. ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2005 | Active | SO21 |
| CROSS LAMINATED TIMBER SOLUTIONS LTD | 43290 · other construction installation | 2026 | Active | SO21 |
| LOCKSMITH LTD | 43290 · other construction installation | 2025 | Active | SO23 |
| OFF GRID INSTALLS LIMITED | 43290 · other construction installation; 42210; 42990; 43999 | 2022 | Active | SO21 |
| WINCHESTER SMART HOMES AND ELECTRICAL SERVICES LTD | 43210 · electrical installation; 62020 | 2024 | Active | SO23 |
| ELITE FPS LIMITED | 43290 · other construction installation; 43999 | 2000 | Active | SO21 |
| CLAYSTONE GROUP LTD | 43210 · electrical installation; 33200 | 2026 | Active | SO21 |
| TIDAL CURRENT ELECTRICAL LIMITED | 43210 · electrical installation; 43290 · other construction installation | 2021 | Active | SO21 |
| CHIMCLEAR CHIMNEY SERVICES LIMITED | 43290 · other construction installation | 2014 | Active | SO21 |
| ST CROSS KITCHENS OF WINCHESTER LTD | 43290 · other construction installation; 31020; 47599; 74100 | 2018 | Active | SO21 |
| GRIFFIN PRECAST PRODUCTS LIMITED | 43290 · other construction installation | 2023 | Active | SO21 |
| S.M PROFESSIONAL BUILDERS LTD | 43290 · other construction installation; 41202 | 2024 | Active | SO21 |
| JOL ELECTRICAL LTD | 43210 · electrical installation | 2020 | Active | SO21 |
| FIS FACADES LTD | 43290 · other construction installation | 2022 | Active | SO21 |
| VIRTUO CLADDING SYSTEMS LTD | 43290 · other construction installation | 2023 | Active | SO21 |
| MIKE HENRY ELECTRICAL CONTRACTORS LIMITED | 43210 · electrical installation; 43290 · other construction installation; 41202 | 2017 | Active - Proposal to Strike off | SO21 |
| CALLAWAY ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2023 | Active - Proposal to Strike off | SO21 |
| TEST VALLEY CONSTRUCTION LTD | 43290 · other construction installation; 41100; 41202 | 2019 | Active - Proposal to Strike off | SO21 |
Heat and planning around Winchester
In Winchester last summer (2026) there were ≈7 nights that stayed above 18 °C — 5 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 3 postcode districts where these offices are registered.
24% of sampled postcodes in Winchester sit in a conservation area (2,295 live postcodes across 3 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.