St Helens: plumbing, heating and air-conditioning companies
St Helens has 81 plumbing, heating and air-conditioning companies (SIC 43220) and 164 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 WA10, summer 2026 had ≈4 nights above 18 °C there (4 times the 1991–2020 average of 1.0).
SIC 43220
Open a company
ACTS MAINTENANCE SOLUTIONS LTD, incorporated 2010, status Active.
Plumbing, heating and air-conditioning companies
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| A1 DOORS LIMITED | 43290 · other construction installation; 47990 | 2013 | Active | WA9 |
| COLLINS ROOFING NW LTD | 43290 · other construction installation | 2025 | Active | WA9 |
| CRYSTAL CLEAR HOME IMPROVEMENTS LTD | 43290 · other construction installation | 2025 | Active | WA10 |
| GEMINI SECURITY SYSTEMS LTD | 43290 · other construction installation | 2002 | Active | WA10 |
| POWERCOM SYSTEMS LIMITED | 43210 · electrical installation; 82990 | 2001 | Active | WA10 |
| SGS INDUSTRIAL SERVICES (UK) LIMITED | 43210 · electrical installation; 43290 · other construction installation | 2006 | Active | WA10 |
| STONEBRIDGE ENERGY LIMITED | 43210 · electrical installation | 2026 | Active | WA9 |
| WESTSIDE (NW) LTD | 43290 · other construction installation | 2021 | Active | WA9 |
| GASCON SERVICES LIMITED | 43290 · other construction installation | 2025 | Active | WA10 |
| PB PARTITIONS LTD | 43290 · other construction installation | 2015 | Active | WA10 |
| SOCOM SOLUTIONS LIMITED | 43210 · electrical installation | 2025 | Active | WA10 |
| THERMAL BUILD (NORTH AND YORKSHIRE) LIMITED | 43290 · other construction installation | 2025 | Active | WA10 |
| HAYES ELECTRICAL LIMITED | 43210 · electrical installation | 2015 | Active | WA10 |
| CHRIS HIGHCOCK CONTRACTING LTD | 43290 · other construction installation | 2026 | Active | WA10 |
| OHS FENCING LTD | 43290 · other construction installation | 2026 | Active | WA10 |
| MGH ELECTRICAL (UK) LTD | 43210 · electrical installation | 2012 | Active | WA10 |
| RAL ENERGY LIMITED | 43210 · electrical installation | 2022 | Active | WA10 |
| HOST ENGINEERING LTD | 43210 · electrical installation; 62020; 70229; 80200 | 2016 | Active | WA9 |
| BWH ELECTRICAL LIMITED | 43210 · electrical installation | 2026 | Active | WA10 |
| CHARGE INSTALLATIONS LTD | 43210 · electrical installation; 43910 | 2023 | Active | WA10 |
| DB ELECTRICALS (NW) LIMITED | 43210 · electrical installation | 2024 | Active | WA10 |
| DMJ (UK) LIMITED | 43210 · electrical installation | 2013 | Active | WA10 |
| GTB ELECTRICAL CONTRACTORS LIMITED | 43210 · electrical installation; 68209 | 2021 | Active | WA10 |
| HEATCARE RENEWABLE ENERGY LTD | 43290 · other construction installation; 33200 | 2011 | Active | WA10 |
| J.W.RIGBY CONSTRUCTION LTD | 43290 · other construction installation | 2026 | Active | WA10 |
| K.V. SAFETY LIMITED | 43210 · electrical installation | 2009 | Active | WA10 |
| KIERAN CONSTRUCTION LIMITED | 43290 · other construction installation | 2024 | Active | WA10 |
| LLEWELLYN & SON LOFT CONVERSIONS LTD | 43290 · other construction installation | 2026 | Active | WA10 |
| MATTHEW PRIOR ELECTRICS LIMITED | 43210 · electrical installation | 2023 | Active | WA10 |
| MPB SOLUTIONS (NW) LIMITED | 43210 · electrical installation | 2024 | Active | WA10 |
| MT ELECTRICAL & A/C SERVICES LIMITED | 43210 · electrical installation; 35300 | 2024 | Active | WA10 |
| RLM PROPERTY SERVICES LIMITED | 43290 · other construction installation | 2024 | Active | WA10 |
| RMW ELECTRICAL & DATA LIMITED | 43210 · electrical installation | 2022 | Active | WA10 |
| S PARR ELECTRICAL LIMITED | 43210 · electrical installation | 2024 | Active | WA10 |
| SP ELECT LIMITED | 43210 · electrical installation | 2024 | Active | WA10 |
| TMH ELECTRICAL CONTRACTORS LIMITED | 43210 · electrical installation | 2024 | Active | WA10 |
| TRIANGLE ELEC LTD | 43210 · electrical installation | 2021 | Active | WA10 |
| WIRELESS ELECTRICAL SOLUTIONS LTD | 43210 · electrical installation | 2026 | Active | WA10 |
| EMFORM LIMITED | 43210 · electrical installation | 2005 | Active | WA9 |
| TRADE TECHNICAL LIMITED | 43210 · electrical installation | 2025 | Active | WA9 |
| SINCLAIR ELECTRICAL LIMITED | 43210 · electrical installation | 2017 | Active | WA9 |
| MOLYNEUX SOLAR SYSTEMS LTD | 43210 · electrical installation | 2025 | Active | WA10 |
| PLT ICE WALL INSULATION LIMITED | 43290 · other construction installation | 2024 | Active | WA11 |
| REED ELECTRICAL SYSTEMS AND SERVICES LTD | 43210 · electrical installation | 2025 | Active | WA11 |
| KMC BRICKWORK AND GROUNDWORK LTD | 43290 · other construction installation | 2022 | Active | WA11 |
| LEMTEC LTD | 43210 · electrical installation | 2026 | Active | WA11 |
| SMC JOINERY AND CONSTRUCTION LTD | 43290 · other construction installation | 2024 | Active | WA11 |
| BUILDSWIFT LIMITED | 43210 · electrical installation; 43330 | 1995 | Active | WA9 |
| MERE (UK) LIMITED | 43210 · electrical installation | 2010 | Active | WA10 |
| LL DOORS LTD | 43290 · other construction installation; 43390 | 2023 | Active | WA9 |
| TJ HURST CONSTRUCTION LTD | 43290 · other construction installation; 41202; 81300 | 2023 | Active | WA10 |
| ECO WARRIOR ELECTRICAL LIMITED | 43210 · electrical installation | 2025 | Active | WA10 |
| DAYLIGHT SOLAR SOLUTIONS LIMITED | 43290 · other construction installation | 2025 | Active | WA11 |
| G&L COLDSTORE CONSTRUCTION LIMITED | 43290 · other construction installation | 2009 | Active | WA9 |
| JH INTEGRATED SYSTEMS LTD | 43210 · electrical installation | 2025 | Active | WA9 |
| XCO RENDER LTD | 43290 · other construction installation; 41202; 43310 | 2023 | Active | WA9 |
| SLATER ELECTRICAL LIMITED | 43210 · electrical installation | 2002 | Active | WA10 |
| LEAPS & BOUNDS ELECTRICAL LIMITED | 43210 · electrical installation | 2024 | Active | WA9 |
| IBCV LIMITED | 43290 · other construction installation; 41201; 41202; 81229 | 2025 | Active | WA11 |
| JW CABLEJOINTING LTD | 43210 · electrical installation | 2017 | Active | WA9 |
| N W INSULATION LTD | 43290 · other construction installation | 2026 | Active | WA11 |
| DENIS MURTAGH ELECTRICAL CONTRACTOR LTD | 43210 · electrical installation | 2007 | Active | WA11 |
| P.W.LOCKETT ELECTRICS LTD | 43210 · electrical installation | 2026 | Active | WA11 |
| PROSPARK LTD | 43210 · electrical installation | 2026 | Active | WA11 |
| NORTHWEST INSTALLATIONS LTD | 43290 · other construction installation | 2025 | Active | WA10 |
| RC ELECTRICAL NW LTD | 43210 · electrical installation | 2026 | Active | WA10 |
| SW ELECTRICAL (UK) LIMITED | 43210 · electrical installation | 2004 | Active | WA9 |
| ASHTON ELECTRICAL SOLUTIONS LIMITED | 43210 · electrical installation | 2014 | Active | WA10 |
| QUALITAS INSTALLATIONS LTD | 43290 · other construction installation | 2021 | Active | WA11 |
| IST-DATA LTD | 43210 · electrical installation; 33140 | 2025 | Active | WA9 |
| DSG FACADES LTD | 43290 · other construction installation | 2021 | Active | WA11 |
| SMARTER GREENER SOLUTIONS LIMITED | 43290 · other construction installation | 2023 | Active | WA11 |
| KLX ELECTRICAL LTD | 43210 · electrical installation | 2022 | Active | WA9 |
| BROOKWAY CONTRACTORS LIMITED | 43210 · electrical installation | 2025 | Active | WA9 |
| DAJ ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2019 | Active | WA9 |
| ACCESS SHORE LIMITED | 43290 · other construction installation; 09100 | 2025 | Active | WA9 |
| SERGIU ELECTRICAL LTD | 43210 · electrical installation | 2023 | Active | WA9 |
| TLEK LTD | 43210 · electrical installation | 2020 | Active | WA10 |
| LNJ ELECTRICAL LTD | 43210 · electrical installation | 2024 | Active | WA9 |
| TITANCONNECTIONS LTD | 43210 · electrical installation | 2025 | Active | WA9 |
| NCS ELECTRICAL CALL OUT SERVICES LTD | 43210 · electrical installation | 2024 | Active | WA10 |
| TOPP ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2014 | Active | WA9 |
| HUMMINGBIRD CONSTRUCTION CONSULTANCY LIMITED | 43290 · other construction installation | 2018 | Active | WA10 |
| GREEN LIVING NW LIMITED | 43210 · electrical installation | 2022 | Active | WA11 |
| OMC UTILITIES LIMITED | 43290 · other construction installation | 2017 | Active | WA10 |
| SJT SERVICES LTD | 43210 · electrical installation | 2003 | Active | WA10 |
| A & I SITE SERVICES LIMITED | 43290 · other construction installation; 25990 | 2025 | Active | WA9 |
| SMART ENERGY ELECTRICS LTD | 43210 · electrical installation | 2025 | Active | WA9 |
| TOTAL DOOR INSTALLATIONS LTD | 43290 · other construction installation | 2025 | Active | WA9 |
| SUNMATE LTD | 43210 · electrical installation; 46690; 70229 | 2025 | Active | WA9 |
| CALM ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2017 | Active | WA9 |
| TCB ELECTRICAL LTD | 43210 · electrical installation | 2022 | Active | WA9 |
| DWATTENERGY LTD | 43290 · other construction installation | 2025 | Active | WA10 |
| FORBER & SONS LTD | 43210 · electrical installation | 2017 | Active | WA10 |
| DP COMS LIMITED | 43210 · electrical installation | 2013 | Active | WA10 |
| V&T CONSTRUCT LTD | 43290 · other construction installation | 2023 | Active | WA9 |
| URBAN SPARX LIMITED | 43210 · electrical installation; 43320; 43390 | 2022 | Active | WA10 |
| A&C ELECTRICAL CONTRACTORS LTD | 43210 · electrical installation | 2017 | Active | WA9 |
| APEX SOLAR SOLUTIONS LTD | 43210 · electrical installation | 2026 | Active | WA9 |
| MM TECH ELECTRICAL SOLUTIONS LIMITED | 43210 · electrical installation | 2016 | Active | WA11 |
Heat and planning around St Helens
In St Helens last summer (2026) there were ≈4.6 nights that stayed above 18 °C — 4 times the 1991–2020 average of 1.1 (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.
2% of sampled postcodes in St Helens sit in a conservation area (5,189 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.