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SO31: plumbing, heating and air-conditioning companies in Southampton
SO31 (Southampton) has 40 plumbing, heating and air-conditioning companies registered here (SIC 43220) and 64 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, SO31 had ≈19 nights above 18 °C in 2026 (7 times the 1991–2020 average of 2.7).
SO31
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A & D PLUMBING AND HEATING (HAMPSHIRE) LIMITED, incorporated 2022, status Active.
Plumbing, heating and air-conditioning companies
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| A1 MARINE ELECTRONICS LIMITED | 43210 · electrical installation; 33150 | 2020 | Active | SO31 |
| ABBEY PROPERTY SERVICES SOUTH LTD | 43210 · electrical installation | 2026 | Active | SO31 |
| ARMEX ELECTRICAL LIMITED | 43210 · electrical installation | 2017 | Active | SO31 |
| ASTRA THERMAL LIMITED | 43290 · other construction installation | 2006 | Active | SO31 |
| AURA ELECTRICAL GROUP LIMITED | 43210 · electrical installation | 2026 | Active | SO31 |
| AUTOMATED GATE AND DOOR SERVICES LIMITED | 43290 · other construction installation | 1989 | Active | SO31 |
| BLOCKBUILD.CO.UK LTD | 43290 · other construction installation | 2019 | Active | SO31 |
| BRH SERVICES LTD | 43290 · other construction installation; 49410; 82990 | 2024 | Active | SO31 |
| BROWNING ELECTRICAL LTD | 43210 · electrical installation | 2023 | Active | SO31 |
| CHANDLER ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2003 | Active | SO31 |
| CHARGED ELECTRICAL LTD | 43210 · electrical installation | 2020 | Active | SO31 |
| CIRCUIT HYPE ELECTRICAL LTD | 43210 · electrical installation | 2022 | Active | SO31 |
| CRM PROJECT SOLUTIONS LTD | 43290 · other construction installation | 2026 | Active | SO31 |
| D L TAYLOR LIMITED | 43210 · electrical installation | 2002 | Active | SO31 |
| DATATECH LTD | 43210 · electrical installation | 1998 | Active | SO31 |
| ELITE CONSTRUCTION (HAMPSHIRE) LIMITED | 43210 · electrical installation | 2013 | Active | SO31 |
| FSC FACILITIES SERVICES LTD | 43290 · other construction installation; 46740 | 2026 | Active | SO31 |
| HALO ELECTRICAL AND FIRE SERVICES LTD | 43210 · electrical installation | 2011 | Active | SO31 |
| HAMPSHIRE GARDEN ROOMS LTD | 43290 · other construction installation; 41201; 41202; 43999 | 2020 | Active | SO31 |
| HARDI ELECTRICAL LIMITED | 43210 · electrical installation | 2021 | Active | SO31 |
| HAWORTH ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2015 | Active | SO31 |
| IDC ELECTRICAL (SOUTHERN) LIMITED | 43210 · electrical installation | 2002 | Active | SO31 |
| IDEAL SHUTTERS LTD | 43290 · other construction installation | 2020 | Active | SO31 |
| IDEC LTD | 43210 · electrical installation | 2007 | Active | SO31 |
| INFINITY ENERGY SERVICES LIMITED | 43210 · electrical installation | 2011 | Active | SO31 |
| IRONCLAD EXTRACTION LTD | 43290 · other construction installation | 2026 | Active | SO31 |
| JJR MECHANICAL & ELECTRICAL LTD | 43210 · electrical installation | 2013 | Active | SO31 |
| JJUBS LIMITED | 43290 · other construction installation; 41202 | 2024 | Active | SO31 |
| LEMON LUMBA LIMITED | 43290 · other construction installation | 2021 | Active | SO31 |
| LH CONSTRUCTION PROJECTS UK LIMITED | 43290 · other construction installation | 2025 | Active | SO31 |
| LOC-8 ELECTRICAL LIMITED | 43210 · electrical installation | 2020 | Active | SO31 |
| MATTEX ELECTRICAL CONTRACTORS LTD | 43210 · electrical installation | 2020 | Active | SO31 |
| MITECH INTERIORS LIMITED | 43290 · other construction installation | 2001 | Active | SO31 |
| MOXHAM EXTRACTION LTD | 43290 · other construction installation | 2023 | Active | SO31 |
| NEW SOLTER LTD | 43290 · other construction installation; 43999; 47990; 49410 | 2020 | Active | SO31 |
| NINETY NINE TOURING LTD | 43210 · electrical installation | 2022 | Active | SO31 |
| ON THE GRID LTD | 43290 · other construction installation; 46180; 74909 | 2020 | Active | SO31 |
| ONELINK ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2017 | Active | SO31 |
| PCM SOLAR LIMITED | 43290 · other construction installation | 2018 | Active | SO31 |
| PHASE ONE MECHANICAL & ELECTRICAL LTD | 43210 · electrical installation; 33140 | 2025 | Active | SO31 |
| POWERFORCE ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2007 | Active | SO31 |
| PRESTIGE GLASS & GLAZING LTD | 43290 · other construction installation | 2024 | Active | SO31 |
| QUADREX PROJECTS LTD | 43290 · other construction installation | 2014 | Active | SO31 |
| RAPID RESPONSE SERVICES LTD | 43210 · electrical installation; 43390 | 2004 | Liquidation | SO31 |
| REACT ELECTRICAL CONTRACTORS LIMITED | 43210 · electrical installation | 2025 | Active | SO31 |
| RKW SHOPFITTING LIMITED | 43290 · other construction installation | 2015 | Active | SO31 |
| S J ELECTRICAL (SOUTH) LIMITED | 43210 · electrical installation | 2010 | Active | SO31 |
| SBP CONSTRUCTION LTD | 43290 · other construction installation | 2019 | Active | SO31 |
| SECURE DESIGN WINDOWS DOORS LTD | 43290 · other construction installation; 43342 | 2023 | Active | SO31 |
| SEMBOLELETRICAL LTD | 43210 · electrical installation | 2026 | Active | SO31 |
| SOLENTUM LIMITED | 43290 · other construction installation; 41201; 43390 | 2026 | Active | SO31 |
| SOUTH CITY ELECTRICAL LIMITED | 43210 · electrical installation | 2005 | Active | SO31 |
| SRR MARINE LTD | 43210 · electrical installation | 2019 | Active | SO31 |
| SUN SOUTH SOLAR LIMITED | 43210 · electrical installation | 2025 | Active | SO31 |
| T. DARBY (ELECTRICAL) LIMITED | 43210 · electrical installation | 1998 | Active | SO31 |
| T.ROOK WINDOWS & DOORS LTD | 43290 · other construction installation | 2026 | Active | SO31 |
| THE LOFT RANGER LTD | 43290 · other construction installation | 2026 | Active | SO31 |
| THERMAL SERVICES (INSULATION) LTD | 43290 · other construction installation | 2010 | Active | SO31 |
| TRACK PARTY LTD. | 43210 · electrical installation; 90030 | 2014 | Active | SO31 |
| TREMOR ELECTRICAL LTD | 43210 · electrical installation | 2008 | Active | SO31 |
| UBUNTU 52 LTD | 43290 · other construction installation | 2023 | Active | SO31 |
| VAMP MARINE LIMITED | 43210 · electrical installation | 2021 | Active | SO31 |
| VENTURE CONSTRUCTION SERVICES LIMITED | 43290 · other construction installation; 33190; 41201; 43390 | 2015 | Active | SO31 |
| VIVID SOLAR STREET LIGHTING LIMITED | 43210 · electrical installation | 2018 | Active | SO31 |
What homes around SO31 need
In SO31 last summer (2026) there were ≈19 nights that stayed above 18 °C — 7 times the 1991–2020 average of 2.7 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
4% of sampled postcodes in SO31 sit in a conservation area (on-record, 1,187 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 SO31, June–August, minimum at or above 18 °C, retrieved 25 Sep 2026. Conservation-area share: sampled postcode points in SO31, snapshot 25 Sep 2026.
Better than a town-wide list: these are the registered offices in SO31, with that district's hot nights and planning rule.