Hemel Hampstead: plumbing, heating and air-conditioning companies
Hemel Hampstead has 1 plumbing, heating and air-conditioning companies (SIC 43220) and 0 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 HP2, summer 2026 had ≈10 nights above 18 °C there (8 times the 1991–2020 average of 1.3).
SIC 43220
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STEFAN THE GAS MAN LTD, incorporated 2025, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| STEFAN THE GAS MAN LTD | 2025 | Active | HP2 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| No SIC 43210 or 43290 company in this town | — | — | — | — |
Nearest plumbing companies within 25 km
2,853 plumbing companies (SIC 43220) have a registered office within 25 km. The nearest 10 are listed.
| Company | Number | District | Distance |
|---|---|---|---|
| RIW GROUP GLOBAL LIMITED | 12672876 | HP2 | ≈0.1 km |
| DAVUDOV LTD | 12129449 | HP2 | ≈0.4 km |
| TOTAL ABILITY LIMITED | 08282748 | HP2 | ≈0.5 km |
| SALIX MECHANICAL LTD | 14667789 | HP2 | ≈0.5 km |
| ORION BUILDING ENGINEERING SERVICES LIMITED | 03524062 | HP2 | ≈0.7 km |
| PLUMB2U PLUMBING & HEATING SUPPLIES LTD | 08612523 | HP2 | ≈0.7 km |
| INLINE PLUMBING AND HEATING LTD | 10490508 | HP2 | ≈0.7 km |
| A M-GEARS LTD | 10538557 | HP2 | ≈0.7 km |
| ALBAN CITY PLUMBING & HEATING LIMITED | 11652407 | HP2 | ≈0.7 km |
| CSCK PLUMBING & HEATING LTD | 11884955 | HP2 | ≈0.7 km |
Heat and planning around Hemel Hampstead
In Hemel Hampstead last summer (2026) there were ≈10 nights that stayed above 18 °C — 8 times the 1991–2020 average of 1.3 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities). The figure is the household-weighted mean of 1 postcode districts where these offices are registered.
0% of sampled postcodes in Hemel Hampstead sit in a conservation area (987 live postcodes across 1 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.