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S18: plumbing, heating and air-conditioning companies in Sheffield
S18 (Sheffield) has 2 plumbing, heating and air-conditioning companies registered here (SIC 43220) and 0 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, S18 had ≈3 nights above 18 °C in 2026 (15 times the 1991–2020 average of 0.2).
S18
Open a company
HALLAMSHIRE HEATING & AIR-CONDITIONING COMPANY LIMITED, incorporated 1994, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| HALLAMSHIRE HEATING & AIR-CONDITIONING COMPANY LIMITED | 1994 | Active | S18 |
| IBBOTSON PLUMBING LIMITED | 2024 | Active | S18 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| No SIC 43210 or 43290 company in this district | — | — | — | — |
What homes around S18 need
In S18 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).
9% of sampled postcodes in S18 sit in a conservation area (on-record, 594 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 S18, June–August, minimum at or above 18 °C, retrieved 25 Sep 2026. Conservation-area share: sampled postcode points in S18, snapshot 25 Sep 2026.
Better than a town-wide list: these are the registered offices in S18, with that district's hot nights and planning rule.