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SO45: plumbing, heating and air-conditioning companies in Southampton
SO45 (Southampton) has 14 plumbing, heating and air-conditioning companies registered here (SIC 43220) and 25 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, SO45 had ≈26 nights above 18 °C in 2026 (10 times the 1991–2020 average of 2.6).
SO45
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A&B CONDITIONED AIR LIMITED, incorporated 2018, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| A&B CONDITIONED AIR LIMITED | 2018 | Active | SO45 |
| E IRONS GAS, PLUMBING AND HEATING LTD | 2015 | Active | SO45 |
| FOREST PLUMBING & HEATING LIMITED | 2014 | Active | SO45 |
| JGM COMMERCIAL LTD | 2023 | Active | SO45 |
| LARK@ROE LTD | 2025 | Active | SO45 |
| LEE MALYON PLUMBING & HEATING LTD | 2024 | Active | SO45 |
| MORRISON PLUMBING AND HEATING LTD | 2023 | Active | SO45 |
| POWA PLUMBING LTD | 2022 | Liquidation | SO45 |
| TC MCCLATCHEY PLUMBING & HEATING LIMITED | 2011 | Active | SO45 |
| TEC PLUMBING AND HEATING LTD | 2026 | Active | SO45 |
| TOTAL GAS (HAMPSHIRE) LIMITED | 2012 | Active - Proposal to Strike off | SO45 |
| WATERSIDE PLUMBING AND HEATING LIMITED | 2003 | Active | SO45 |
| ZEBRA HOME SERVICES LIMITED | 2013 | Active | SO45 |
| ZONE (HAMPSHIRE) LTD | 2023 | Active | SO45 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| AJ ELECTRICAL (SOUTHAMPTON) LIMITED | 43210 · electrical installation | 2016 | Active - Proposal to Strike off | SO45 |
| ALN ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2016 | Active | SO45 |
| AMBRA ELECTRICAL LTD | 43210 · electrical installation | 2016 | Active | SO45 |
| AR EVENT CONTRACTING LTD | 43210 · electrical installation | 2025 | Active | SO45 |
| ASHLEY SECURITY COMPANY LIMITED | 43210 · electrical installation | 2001 | Active | SO45 |
| BUNDY SERVICES LTD | 43210 · electrical installation; 69202 | 2019 | Active | SO45 |
| DYNAMIC DRAINS LIMITED | 43290 · other construction installation; 37000 | 2023 | Active | SO45 |
| ELECTRIMEC LIMITED | 43210 · electrical installation | 2019 | Active | SO45 |
| FDFS RESINS AND SCREED LTD | 43290 · other construction installation | 2019 | Active - Proposal to Strike off | SO45 |
| LAMBERTLUX ELECTRICAL SOLUTIONS LIMITED | 43210 · electrical installation | 2022 | Active | SO45 |
| MBUCHAN CARPENTRY LIMITED | 43290 · other construction installation | 2022 | Active | SO45 |
| MEEK MARINE SERVICES LIMITED | 43210 · electrical installation | 2026 | Active | SO45 |
| MONTANA LTD | 43290 · other construction installation | 2020 | Active - Proposal to Strike off | SO45 |
| NAP UK ENTERPRISES LIMITED | 43210 · electrical installation | 2019 | Active | SO45 |
| R G N ELECTRICAL LTD | 43210 · electrical installation | 2010 | Active | SO45 |
| R MAY LIMITED | 43210 · electrical installation | 2015 | Active | SO45 |
| R NORRIS ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2007 | Active | SO45 |
| RHL CARPENTRY & LANDSCAPING LTD | 43290 · other construction installation | 2024 | Active | SO45 |
| SDS ELECTRICAL AND MAINTENANCE LIMITED | 43210 · electrical installation | 2013 | Active | SO45 |
| SOLENT ELECTRICAL CONSULTANCY-MARINE LIMITED | 43210 · electrical installation; 68209; 70229; 74100 | 2012 | Active | SO45 |
| SOUTH COAST INTERIORS LIMITED | 43290 · other construction installation | 2001 | Active | SO45 |
| SOUTH WEST ELECTRICAL AND MAINTENANCE LTD | 43210 · electrical installation | 2026 | Active | SO45 |
| WATERSIDE PAT TESTING LTD | 43210 · electrical installation | 2022 | Active | SO45 |
| WATERSIDE WINDOWS (SOUTH) LTD | 43290 · other construction installation | 2016 | Active | SO45 |
| WINDOR HOME IMPROVEMENTS LIMITED | 43290 · other construction installation | 2018 | Active | SO45 |
What homes around SO45 need
In SO45 last summer (2026) there were ≈26 nights that stayed above 18 °C — 10 times the 1991–2020 average of 2.6 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
2% of sampled postcodes in SO45 sit in a conservation area (on-record, 973 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 SO45, June–August, minimum at or above 18 °C, retrieved 25 Sep 2026. Conservation-area share: sampled postcode points in SO45, snapshot 25 Sep 2026.
Better than a town-wide list: these are the registered offices in SO45, with that district's hot nights and planning rule.