Wheathamstead: plumbing, heating and air-conditioning companies
Wheathamstead 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 AL4, summer 2026 had ≈11 nights above 18 °C there (7 times the 1991–2020 average of 1.5).
SIC 43220
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HIGHFIELD MECHANICAL SERVICES LTD, incorporated 2015, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| HIGHFIELD MECHANICAL SERVICES LTD | 2015 | Active | AL4 |
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
2,896 plumbing companies (SIC 43220) have a registered office within 25 km. The nearest 10 are listed.
| Company | Number | District | Distance |
|---|---|---|---|
| ELITE AC LTD | 13139403 | AL4 | under 0.1 km |
| ADVANCED DRAINAGE SOLUTIONS LIMITED | 05681686 | AL4 | ≈0.2 km |
| SEYMOUR PLUMBING LTD | 11633938 | AL4 | ≈0.2 km |
| OWL VENT LTD | 14925989 | AL4 | ≈0.2 km |
| ALPHA PLUMBERS LTD | 15737219 | AL4 | ≈0.6 km |
| NONPAREIL SOLUTIONS LIMITED | 07249228 | AL4 | ≈1.9 km |
| HERTFORDSHIRE PLUMBING & HEATING LTD | 08074812 | AL4 | ≈1.9 km |
| HARPENDEN PLUMBING AND HEATING LIMITED | 10022268 | AL5 | ≈3.0 km |
| CK PLUMBERS LTD | 13896481 | AL5 | ≈3.1 km |
| FIRST PLUMBING LTD | 14582300 | AL5 | ≈3.2 km |
Heat and planning around Wheathamstead
In Wheathamstead last summer (2026) there were ≈11 nights that stayed above 18 °C — 7 times the 1991–2020 average of 1.5 (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.
8% of sampled postcodes in Wheathamstead sit in a conservation area (787 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.