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S7: plumbing, heating and air-conditioning companies in Sheffield
S7 (Sheffield) has 9 plumbing, heating and air-conditioning companies registered here (SIC 43220) and 9 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, S7 had ≈3 nights above 18 °C in 2026 (15 times the 1991–2020 average of 0.2).
S7
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COSY CASTLE LTD, incorporated 2024, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| COSY CASTLE LTD | 2024 | Active | S7 |
| DAA'D ENGINEERING SERVICES LTD | 2020 | Active | S7 |
| EVERYTHING ZENITH LTD | 2026 | Active | S7 |
| GASFIX YORKSHIRE LIMITED | 2017 | Active | S7 |
| MH PROPERTY SOLUTION LTD | 2023 | Active | S7 |
| REACT BOILER REPAIR LTD | 2021 | Active | S7 |
| REACT PLUMBING SERVICES LTD | 2021 | Active | S7 |
| RW PLUMBING SOLUTIONS LIMITED | 2013 | Active | S7 |
| SAFETASK LIMITED | 1988 | Active | S7 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| CONNECTRICAL LTD | 43210 · electrical installation | 2023 | Active | S7 |
| DAVE NAYLOR CONSTRUCTION LTD | 43290 · other construction installation | 2025 | Active | S7 |
| FIXBOX LIMITED | 43210 · electrical installation; 47910 | 2016 | Active | S7 |
| INFRA POWER PROJECTS LIMITED | 43210 · electrical installation; 71129 | 2026 | Active | S7 |
| LIU LIU SHUN LTD | 43290 · other construction installation; 41202; 43390 | 2021 | Active | S7 |
| MT ELECTRICAL ( YORKSHIRE) LIMITED | 43210 · electrical installation | 2023 | Active - Proposal to Strike off | S7 |
| RR FIRST STEP CONTRACTORS LTD | 43290 · other construction installation; 43999 | 2025 | Active | S7 |
| SCL LONDON LTD | 43290 · other construction installation | 2019 | Active - Proposal to Strike off | S7 |
| SUB ZERO HOLDINGS LIMITED | 43210 · electrical installation; 35300; 64209; 71129 | 2019 | Active | S7 |
What homes around S7 need
In S7 last summer (2026) there were ≈3 nights that stayed above 18 °C — 15 times the 1991–2020 average of 0.2 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
24% of sampled postcodes in S7 sit in a conservation area (on-record, 302 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 S7, June–August, minimum at or above 18 °C, retrieved 25 Sep 2026. Conservation-area share: sampled postcode points in S7, snapshot 25 Sep 2026.
Better than a town-wide list: these are the registered offices in S7, with that district's hot nights and planning rule.