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L3: plumbing, heating and air-conditioning companies in Liverpool
L3 (Liverpool) has 62 plumbing, heating and air-conditioning companies registered here (SIC 43220) and 109 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, L3 had ≈5 nights above 18 °C in 2026 (5 times the 1991–2020 average of 1.1).
L3
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A & H PLUMBING & HEATING LTD, incorporated 2023, status Active.
Plumbing, heating and air-conditioning companies
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| 4POS LIMITED | 43210 · electrical installation | 2025 | Active | L3 |
| ADVENT PLASTERING & BUILDING LTD | 43290 · other construction installation | 2007 | Active | L3 |
| ALBANY AERIALS LIMITED | 43210 · electrical installation; 82990 | 2008 | Active | L3 |
| ALBY ELECTRICAL LIMITED | 43210 · electrical installation | 2024 | Active | L3 |
| AMPA CONSTRUCTION LTD | 43290 · other construction installation | 2017 | Active | L3 |
| ATB ELECTRICAL SYSTEMS LTD | 43210 · electrical installation | 2009 | Active | L3 |
| AXIS FIRE AND SECURITY LTD | 43210 · electrical installation; 80200; 84250 | 2021 | Active | L3 |
| AZTEC INTERIORS (NORTHERN) LIMITED | 43290 · other construction installation | 1988 | Active | L3 |
| BARCLAY CONSTRUCTION (NW) LIMITED | 43290 · other construction installation | 2025 | Active | L3 |
| BELEC ELECTRICAL LTD | 43210 · electrical installation | 2012 | Active | L3 |
| BESAT GROUP LIMITED | 43290 · other construction installation | 2026 | Active | L3 |
| BRITANNIA ELECTRICAL GROUP LIMITED | 43210 · electrical installation | 2017 | Active | L3 |
| BUY VENTILATION LIMITED | 43290 · other construction installation | 2024 | Active | L3 |
| CAB ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2026 | Active | L3 |
| CAMPBELL ELEC LTD | 43210 · electrical installation | 2018 | Active | L3 |
| CJ CIVILS & SURFACING LIMITED | 43290 · other construction installation | 2018 | Active | L3 |
| CJD TECHNICAL SERVICES LTD | 43210 · electrical installation | 2025 | Active | L3 |
| CK1 ELECTRICAL LTD | 43210 · electrical installation | 2017 | Active | L3 |
| CL LIFTING LIMITED | 43290 · other construction installation | 2025 | Active | L3 |
| CO ELECTRICAL LTD | 43210 · electrical installation | 2015 | Active | L3 |
| COLIN DARRACOTT LIMITED | 43210 · electrical installation | 2011 | Active - Proposal to Strike off | L3 |
| COMBAT PAINTBALL (NW) LTD | 43290 · other construction installation; 93290 | 2007 | Active | L3 |
| COMBINED CONTRACTING SERVICES LTD | 43290 · other construction installation; 43999 | 2010 | Active | L3 |
| CONDITION SURVEYS LIMITED | 43210 · electrical installation | 2018 | Active | L3 |
| CORNERSTONE DAMP SOLUTIONS LTD | 43290 · other construction installation | 2019 | Active - Proposal to Strike off | L3 |
| CPAID LIMITED | 43290 · other construction installation | 2021 | Active | L3 |
| DAVISON & JACKSON LIMITED | 43210 · electrical installation; 33140 | 2004 | Active | L3 |
| DB INSTALLATIONS (UK) LTD | 43210 · electrical installation | 2005 | Active | L3 |
| DEAN PARKINS LTD | 43210 · electrical installation | 2015 | Active - Proposal to Strike off | L3 |
| DGS ELECTRICAL SOLUTIONS LTD | 43210 · electrical installation; 41100 | 2017 | Active - Proposal to Strike off | L3 |
| DJS COMMS LTD | 43210 · electrical installation | 2025 | Active | L3 |
| DNA INSULATION SERVICES LIMITED | 43290 · other construction installation; 43390 | 2015 | Active | L3 |
| DORWARD INTELLIGENT BUILDINGS LIMITED | 43210 · electrical installation | 2014 | Active | L3 |
| DPS BUILDING SERVICES (NW) LTD | 43290 · other construction installation; 43390 | 2026 | Active | L3 |
| ECO SOLAR SOLUTIONS LTD | 43210 · electrical installation | 2021 | Active | L3 |
| EMTECH GROUP LTD | 43210 · electrical installation; 41201; 41202; 43390 | 2023 | Active | L3 |
| EQ ELECTRICAL LTD | 43210 · electrical installation | 2021 | Active | L3 |
| EVANS ELECTRICAL CONTRACTORS LIMITED | 43210 · electrical installation | 2025 | Active | L3 |
| EVERGREEN SMART SPACES LTD | 43210 · electrical installation; 62020; 71129 | 2026 | Active | L3 |
| FACTORY HEATERS LTD | 43290 · other construction installation | 2009 | Active | L3 |
| FEARNS ELECTRICAL LTD | 43210 · electrical installation | 2023 | Active | L3 |
| FIRE STAR SECURITY LIMITED | 43210 · electrical installation; 80200 | 2026 | Active | L3 |
| FIX ELECTRICAL (NW) LTD | 43210 · electrical installation | 2025 | Active | L3 |
| GREENTEAM INSULATION LTD | 43290 · other construction installation | 2018 | Liquidation | L3 |
| GRIFFITHS INTERLINK LTD | 43210 · electrical installation | 2024 | Active | L3 |
| GS POWER GRID LTD | 43210 · electrical installation | 2024 | Active | L3 |
| HAMMAC ELECTRICAL LIMITED | 43210 · electrical installation | 2016 | Active | L3 |
| HANDLAID STONE LTD | 43290 · other construction installation | 2011 | Active | L3 |
| HEATWIZE LIMITED | 43210 · electrical installation | 2007 | Active | L3 |
| HFI SERVICES LIMITED | 43290 · other construction installation | 2023 | Active | L3 |
| HOWARTH ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2016 | Active | L3 |
| J ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2016 | Active | L3 |
| JCIL DEVELOPMENTS LIMITED | 43290 · other construction installation | 2022 | Active | L3 |
| JCL ELECTRICAL SOLUTIONS LTD | 43210 · electrical installation | 2025 | Active | L3 |
| JETSTREAM DRAINAGE AP LTD | 43290 · other construction installation | 2024 | Active | L3 |
| JLA PROPERTY MAINTENANCE(NORTH WEST) LTD | 43210 · electrical installation; 43390 | 2026 | Active | L3 |
| KASPIAN ELECTRICAL LTD | 43210 · electrical installation | 2026 | Active | L3 |
| KNIGHTSBRIDGE CONSTRUCTION GROUP LTD | 43290 · other construction installation; 16230; 41201; 41202 | 2018 | Active - Proposal to Strike off | L3 |
| KNIGHTSBRIDGE HOMES GROUP LTD | 43290 · other construction installation; 41202; 42990; 68100 | 2018 | Active - Proposal to Strike off | L3 |
| KSL BRICKWORK CONTRACTORS LTD | 43290 · other construction installation | 2007 | Active | L3 |
| L.J. LOVELADY ELECTRICAL CONTRACTORS LIMITED | 43210 · electrical installation | 2006 | Liquidation | L3 |
| LIV MOVE MAINTENANCE LTD | 43290 · other construction installation | 2022 | Active | L3 |
| LSM MULTI-SERVICES LIMITED | 43290 · other construction installation | 2003 | Active | L3 |
| M L G ELECTRICAL LTD | 43210 · electrical installation | 2012 | Active | L3 |
| M. LEWIS ELECTRICAL LIMITED | 43210 · electrical installation | 2024 | Active | L3 |
| MACTEC SECURITY SYSTEMS LIMITED | 43210 · electrical installation | 2004 | Active | L3 |
| MACTS LIVERPOOL LTD | 43290 · other construction installation | 2026 | Active | L3 |
| MDR COOLING LTD | 43290 · other construction installation | 2024 | Active | L3 |
| MELLOR CONSTRUCTION (NW) LIMITED | 43290 · other construction installation | 2020 | Active | L3 |
| MERSEY ELECTRICAL LTD | 43210 · electrical installation | 2018 | Active - Proposal to Strike off | L3 |
| MIKE BENNETT MOTORS LIMITED | 43290 · other construction installation | 2019 | Active | L3 |
| MJS ELECTRICAL SOLUTIONS LTD | 43210 · electrical installation; 33140 | 2025 | Active | L3 |
| MM FACADES LTD | 43290 · other construction installation; 43390 | 2023 | Active | L3 |
| MODERN HYGIENE (1992) LIMITED | 43210 · electrical installation; 43330; 81210 | 2000 | Active | L3 |
| MP FABRICATIONS LIMITED | 43290 · other construction installation | 2006 | Active | L3 |
| NATIONWIDE JOINERY NW LTD | 43290 · other construction installation; 43320; 43999 | 2019 | Active - Proposal to Strike off | L3 |
| NEXTPHASE ELECTRICAL & RENEWABLES LTD | 43210 · electrical installation | 2020 | Active | L3 |
| NS DEVELOP LIMITED | 43290 · other construction installation; 41100; 41202; 43120 | 2023 | Active - Proposal to Strike off | L3 |
| NSL ENGINEERING (WIRRAL) LIMITED | 43210 · electrical installation | 2025 | Active | L3 |
| P.G. PORTER LTD | 43290 · other construction installation | 2001 | Active | L3 |
| P.J. ELECTRICAL INSTALLATIONS LTD | 43210 · electrical installation | 1997 | Active | L3 |
| PHOENIX ELECTRICAL LIVERPOOL LTD | 43210 · electrical installation | 2025 | Active | L3 |
| PJS ELECTRICAL&INSTRUMENTAL ENG LTD | 43210 · electrical installation | 2019 | Active | L3 |
| POWERMEC M&E LTD | 43210 · electrical installation; 71129 | 2026 | Active | L3 |
| PRIMORA INTERIORS LTD | 43290 · other construction installation; 43320; 43390; 74100 | 2018 | Active | L3 |
| PRNS BUILDING SERVICES LTD | 43290 · other construction installation | 2009 | Active | L3 |
| PS ELECTRICAL CONSULTANCY LIMITED | 43210 · electrical installation | 2017 | Active | L3 |
| PULSE ELECTRICAL (NW) LTD | 43210 · electrical installation | 2018 | Active | L3 |
| R.R. ELECTRICAL LIMITED | 43210 · electrical installation | 2003 | Active | L3 |
| REDGRAY ENGINEERING LTD | 43290 · other construction installation; 43390; 43999 | 2017 | Active | L3 |
| REW ELEC LIMITED | 43210 · electrical installation; 33140 | 2021 | Active | L3 |
| RJ ELECTRICAL SERVICES (YORKSHIRE) LIMITED | 43210 · electrical installation | 2025 | Active | L3 |
| SAFELEC BUILDING SERVICES LIMITED | 43290 · other construction installation | 2005 | Active - Proposal to Strike off | L3 |
| SALTER CONSTRUCTION LTD | 43290 · other construction installation | 2020 | Active | L3 |
| SELECTRICAL (BANGOR) LIMITED | 43210 · electrical installation | 2009 | Liquidation | L3 |
| SJP ELECTRICAL (NW) LTD | 43210 · electrical installation | 2011 | Active | L3 |
| SJW ELECTRICAL SERVICES LTD | 43210 · electrical installation; 32990 | 2016 | Active | L3 |
| SKARRATTS ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2026 | Active | L3 |
| SMC FENCING LIMITED | 43290 · other construction installation | 2019 | Active - Proposal to Strike off | L3 |
| SWITCHWIRE ELECTRICAL LTD | 43210 · electrical installation; 41202 | 2008 | Active | L3 |
| SWORD STRATEGIC SOLUTIONS LIMITED | 43290 · other construction installation; 28290; 70229; 78109 | 2002 | Active | L3 |
| TEMPFENCE UK LIMITED | 43290 · other construction installation | 2021 | Active | L3 |
| TILLYS ELECTRICAL LIMITED | 43210 · electrical installation | 2019 | Active - Proposal to Strike off | L3 |
| TM MECHANICAL LIMITED | 43290 · other construction installation | 2021 | Active | L3 |
| TRANSFORM BUILDING & MAINTENANCE LTD | 43290 · other construction installation | 2017 | Active | L3 |
| VIRTUE BATHROOMS LTD | 43290 · other construction installation | 2021 | Liquidation | L3 |
| WALSHCO BUILDING MAINTENANCE LTD | 43290 · other construction installation | 2010 | Active | L3 |
| WJR FIRE AND SECURITY LTD | 43210 · electrical installation | 2026 | Active | L3 |
| WOODCARE BUILDING CONTRACTORS LIMITED | 43290 · other construction installation | 2021 | Active | L3 |
What homes around L3 need
In L3 last summer (2026) there were ≈5 nights that stayed above 18 °C — 5 times the 1991–2020 average of 1.1 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
20% of sampled postcodes in L3 sit in a conservation area (on-record, 566 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 L3, June–August, minimum at or above 18 °C, retrieved 25 Sep 2026. Conservation-area share: sampled postcode points in L3, snapshot 25 Sep 2026.
Better than a town-wide list: these are the registered offices in L3, with that district's hot nights and planning rule.