Merseyside, Liverpool: plumbing, heating and air-conditioning companies
Merseyside, Liverpool has 3 plumbing, heating and air-conditioning companies (SIC 43220) and 13 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 L20, summer 2026 had ≈5 nights above 18 °C there (5 times the 1991–2020 average of 1.1).
SIC 43220
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JMC HEATING LTD, incorporated 2018, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| MJW HEATING SOLUTIONS LTD | 2023 | Active | L20 |
| NORTHWEST HEATING AND PLUMBING SERVICES LTD | 2024 | Active | L20 |
| JMC HEATING LTD | 2018 | Active | L24 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| CRC ELECTRICAL LTD | 43210 · electrical installation | 2023 | Active | L20 |
| J H ELECTRICAL PROJECTS LTD | 43210 · electrical installation | 2020 | Active | L20 |
| KB SERVICES ( NW) LTD | 43210 · electrical installation | 2023 | Active | L20 |
| LAMBO UTILITIES LTD | 43290 · other construction installation | 2023 | Active | L20 |
| LEWIS & SONS ELECTRICAL NW LTD | 43210 · electrical installation; 70229; 71200 | 2024 | Active | L20 |
| MURRAYLEC LTD | 43210 · electrical installation | 2019 | Active | L20 |
| N.A.C BUILDERS LTD | 43290 · other construction installation | 2019 | Active | L20 |
| BMDFINISHES LTD | 43290 · other construction installation | 2022 | Active - Proposal to Strike off | L20 |
| FLOWERDAY AUTOMATION LTD | 43210 · electrical installation | 2018 | Active - Proposal to Strike off | L20 |
| GSL GROUP SERVICES LTD. | 43210 · electrical installation; 68100 | 2019 | Active - Proposal to Strike off | L20 |
| PLESSIES ELECTRICAL LTD | 43210 · electrical installation | 2018 | Active - Proposal to Strike off | L20 |
| SP CONTRACTS LTD | 43290 · other construction installation | 2018 | Active - Proposal to Strike off | L20 |
| WYNTER CONTRACTORS LTD | 43290 · other construction installation | 2019 | Active - Proposal to Strike off | L20 |
Heat and planning around Merseyside, Liverpool
In Merseyside, Liverpool last summer (2026) there were ≈5.3 nights that stayed above 18 °C — 5 times the 1991–2020 average of 1.2 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities). The figure is the household-weighted mean of 2 postcode districts where these offices are registered.
5% of sampled postcodes in Merseyside, Liverpool sit in a conservation area (1,381 live postcodes across 2 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.