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L21: plumbing, heating and air-conditioning companies in Liverpool
L21 (Liverpool) has 9 plumbing, heating and air-conditioning companies registered here (SIC 43220) and 28 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, L21 had ≈5 nights above 18 °C in 2026 (5 times the 1991–2020 average of 1.1).
L21
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B&S PLUMBING HEATING AND GAS LTD, incorporated 2024, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| B&S PLUMBING HEATING AND GAS LTD | 2024 | Active | L21 |
| DA UTILITY SOLUTIONS LTD | 2024 | Active | L21 |
| ELITE GAS & PLUMBING LTD | 2021 | Active | L21 |
| JG HEATING SERVICES LTD | 2025 | Active | L21 |
| MERSEYFLUSH LTD | 2024 | Active | L21 |
| MSH MECHANICAL SERVICES LTD | 2023 | Active | L21 |
| NWL HEATING & PLUMBING LTD | 2020 | Active | L21 |
| ORRELL PARK HEATING SOLUTIONS LTD | 2025 | Active | L21 |
| SMARTER HEATING & PLUMBING LTD | 2026 | Active | L21 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| 24 ELECTRICAL LTD | 43210 · electrical installation | 2021 | Active | L21 |
| ABBEY BUILDERS LIMITED | 43290 · other construction installation | 2021 | Active | L21 |
| ANDY EDWARDS MIXERS LTD | 43290 · other construction installation | 2015 | Active | L21 |
| ARC FM GROUP LTD | 43210 · electrical installation; 43290 · other construction installation; 71129; 81100 | 2025 | Active | L21 |
| BIRTCHLEY ROSS LIMITED | 43290 · other construction installation; 85590 | 2014 | Active | L21 |
| C.W. GLASS LIMITED | 43290 · other construction installation | 2003 | Active | L21 |
| CARTHY SKILLING ELECTRICAL LTD | 43210 · electrical installation | 2013 | Active | L21 |
| CJ CONSTRUCTION (NW) LTD | 43290 · other construction installation | 2024 | Active | L21 |
| CODO SERVICES LIMITED | 43290 · other construction installation | 2026 | Active | L21 |
| ENERGY GROUP INC. LTD | 43210 · electrical installation; 43290 · other construction installation; 70229 | 2023 | Active | L21 |
| G DRAPER ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2026 | Active | L21 |
| GEO E CIVIL ENGINEERING LTD | 43290 · other construction installation; 41201; 41202; 43120 | 2024 | Active | L21 |
| GHI LIVERPOOL LTD | 43290 · other construction installation | 2016 | Active | L21 |
| JAMIE JOHNSTON INSPECTION SERVICES LTD | 43290 · other construction installation | 2025 | Active | L21 |
| K TUNNEY BRICKWORK LTD | 43290 · other construction installation | 2020 | Active | L21 |
| LEWISELEC (NW) LTD | 43210 · electrical installation | 2026 | Active | L21 |
| LIVERLEC ELECTRICAL LTD | 43210 · electrical installation | 2022 | Active | L21 |
| LJR ELEC LIMITED | 43290 · other construction installation | 2026 | Active | L21 |
| MATTHEW TROTTER LIMITED | 43210 · electrical installation | 2025 | Active - Proposal to Strike off | L21 |
| MD FIRE AND PROPERTY LTD | 43290 · other construction installation; 41202 | 2024 | Active | L21 |
| MEGA UNIQUE TOUCH LIMITED | 43290 · other construction installation; 47190; 55900; 81210 | 2025 | Active | L21 |
| MERCER PANEL SYSTEMS LIMITED | 43290 · other construction installation | 2007 | Active | L21 |
| MK CONTRACTING GROUP LTD | 43290 · other construction installation | 2026 | Active | L21 |
| NIKOLOV M LTD | 43290 · other construction installation; 49410; 96090 | 2015 | Active | L21 |
| PGAB ELECTRICAL LTD | 43210 · electrical installation | 2025 | Active | L21 |
| RENOWN ROOFING AND SOLAR ENERGY LTD | 43210 · electrical installation | 2022 | Active | L21 |
| SEFTON ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2003 | Active | L21 |
| SMART FIRE AND CONSTRUCTION LTD | 43290 · other construction installation | 2020 | Active | L21 |
What homes around L21 need
In L21 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).
0% of sampled postcodes in L21 sit in a conservation area (on-record, 571 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 L21, June–August, minimum at or above 18 °C, retrieved 25 Sep 2026. Conservation-area share: sampled postcode points in L21, snapshot 25 Sep 2026.
Better than a town-wide list: these are the registered offices in L21, with that district's hot nights and planning rule.