Havant: plumbing, heating and air-conditioning companies
Havant has 20 plumbing, heating and air-conditioning companies (SIC 43220) and 44 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 PO9, summer 2026 had ≈27 nights above 18 °C there (9 times the 1991–2020 average of 2.9).
SIC 43220
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AQUEOUS INSTALLATIONS LTD, incorporated 2022, status Active.
Plumbing, heating and air-conditioning companies
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| HEPWORTH & CROCKFORD ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2013 | Active | PO9 |
| ENERGIO LTD | 43290 · other construction installation | 2025 | Active | PO9 |
| SOLARO SYSTEMS LTD | 43290 · other construction installation | 2025 | Active | PO9 |
| EVANTI REAL ESTATE LIMITED | 43210 · electrical installation; 41100; 52290; 68209 | 2025 | Active | PO9 |
| PR ELECTRICS LTD | 43210 · electrical installation | 2014 | Active | PO9 |
| STASYS DRYLINING LTD | 43290 · other construction installation | 2021 | Active | PO9 |
| INOVOLT LIMITED | 43210 · electrical installation | 2000 | Active | PO9 |
| RDF ELECTRICAL AND MECHANICAL ENGINEERING LTD | 43210 · electrical installation; 33140; 43999 | 2024 | Active | PO9 |
| VOLTWORKS ELECTRICAL LTD | 43210 · electrical installation | 2026 | Active | PO9 |
| RGL CONSTRUCTION CONSULTANCIES LTD | 43290 · other construction installation | 2026 | Active | PO9 |
| SRC ELECTRICAL SOLUTIONS UK LTD | 43210 · electrical installation | 2023 | Active | PO9 |
| DJS-LTD REFURBISHMENT LTD | 43290 · other construction installation | 2023 | Active | PO9 |
| SOLENT ELECTRICAL CONTRACTORS LIMITED | 43210 · electrical installation | 2018 | Active | PO9 |
| DANOSA UK LTD | 43290 · other construction installation; 20520; 23990; 43910 | 2012 | Active | PO9 |
| S&K BATHROOMS LTD | 43290 · other construction installation | 2016 | Active | PO9 |
| GABRIEL INSULATION SERVICES LTD | 43290 · other construction installation | 2011 | Active | PO9 |
| GALMOYE & HOWE ELECTRICAL LIMITED | 43210 · electrical installation | 2021 | Active | PO9 |
| WILLIAMSON MENZIES LIMITED | 43290 · other construction installation | 2011 | Active | PO9 |
| HARBOURSIDE GROUP LIMITED | 43290 · other construction installation; 68209 | 2008 | Active | PO9 |
| HARBOURSIDE PROJECTS LIMITED | 43290 · other construction installation | 2008 | Active | PO9 |
| HARBOURSIDE WINDOWS AND CONSERVATORIES LIMITED | 43290 · other construction installation | 2005 | Active | PO9 |
| ETR SOLUTIONS LIMITED | 43210 · electrical installation | 2024 | Active | PO9 |
| CENTRAL ENERGY SOUTH LIMITED | 43210 · electrical installation | 2015 | Active | PO9 |
| RMD ELECTRICAL AND RENEWABLES LTD | 43210 · electrical installation | 2023 | Active | PO9 |
| XELENSIS LIMITED | 43210 · electrical installation | 2020 | Active | PO9 |
| J & D ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2013 | Active | PO9 |
| JJD ELECTRICAL LTD | 43210 · electrical installation | 2021 | Active | PO9 |
| STADIA CONSTRUCTION LTD | 43290 · other construction installation | 2024 | Active | PO9 |
| SEELEY CONSTRUCTION LTD | 43290 · other construction installation | 2015 | Active | PO9 |
| LANGSTONE ELECTRICAL & KITCHEN SERVICES LIMITED | 43210 · electrical installation | 2022 | Active | PO9 |
| DT ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2003 | Active | PO9 |
| AVENUE POWER LIMITED | 43210 · electrical installation; 41202 | 2024 | Active | PO9 |
| CAMPERFIXER LTD | 43210 · electrical installation; 33170; 33190; 45200 | 2025 | Active | PO9 |
| EVILL LTD | 43210 · electrical installation | 2019 | Active | PO9 |
| REGENT ENGINEERING LTD | 43210 · electrical installation; 27120; 27900 | 2024 | Active | PO9 |
| WHITES PROPERTY MAINTENANCE LTD | 43290 · other construction installation | 2021 | Active | PO9 |
| DJE ELECTRICAL SERVICES & SON LTD | 43210 · electrical installation | 2018 | Active | PO9 |
| TALBRO SERVICES LIMITED | 43210 · electrical installation | 2010 | Active | PO9 |
| M.GOVER ELECTRICAL LTD | 43210 · electrical installation | 2025 | Active | PO9 |
| NIGHTLIGHT ELECTRICAL LIMITED | 43210 · electrical installation | 2023 | Active | PO9 |
| POETS DAY LTD | 43210 · electrical installation | 2025 | Active - Proposal to Strike off | PO9 |
| J.F.H ELECTRICAL CONTRACTORS LTD | 43210 · electrical installation | 2019 | Active - Proposal to Strike off | PO9 |
| DARWIN ELECTRICS LTD | 43210 · electrical installation | 2015 | Active - Proposal to Strike off | PO9 |
| MARINE ELECTRICAL LTD | 43210 · electrical installation | 2018 | Active - Proposal to Strike off | PO9 |
Heat and planning around Havant
In Havant 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.
10% of sampled postcodes in Havant sit in a conservation area (1,218 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.