Ilminster: plumbing, heating and air-conditioning companies
Ilminster has 10 plumbing, heating and air-conditioning companies (SIC 43220) and 12 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 TA19, summer 2026 had ≈4 nights above 18 °C there (6 times the 1991–2020 average of 0.7).
SIC 43220
Open a company
AMBER HEATING LIMITED, incorporated 2014, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| SOMERSET PLUMBING AND HEATING SERVICES LTD | 2019 | Active | TA19 |
| VOGE LTD | 2015 | Active | TA19 |
| UNITY CONTROL SYSTEMS LTD | 1996 | Active | TA19 |
| SGC PLUMBING LIMITED | 2019 | Active | TA19 |
| CARBIN HEATING & RENEWABLES LIMITED | 2002 | Active | TA19 |
| STARTECH ENGINEERING LTD | 2018 | Active | TA19 |
| AMBER HEATING LIMITED | 2014 | Active | TA19 |
| SNC PLUMBING & HEATING LTD | 2025 | Active | TA19 |
| P CABLE PLUMBING AND HEATING LIMITED | 2014 | Active - Proposal to Strike off | TA19 |
| BDT PLUMBING AND HEATING SERVICES LIMITED | 2024 | Active - Proposal to Strike off | TA19 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| C K HARWOOD & SONS LIMITED | 43290 · other construction installation; 43390 | 2002 | Active | TA19 |
| MEC (ILMINSTER) LTD | 43210 · electrical installation | 2015 | Active | TA19 |
| NATIONAL FENCING CONTRACTORS LTD | 43290 · other construction installation | 2018 | Active | TA19 |
| ELECTRIC PLUS LTD | 43210 · electrical installation | 2019 | Active | TA19 |
| PIONEER (SW) LTD | 43210 · electrical installation; 80200 | 2018 | Active | TA19 |
| A.MAKAREWICZ CONSTRUCTION LTD | 43290 · other construction installation | 2025 | Active | TA19 |
| H.TROTTER ELECTRICAL LIMITED | 43210 · electrical installation | 2026 | Active | TA19 |
| E J GRABHAM ELECTRICAL CONTRACTOR LIMITED | 43210 · electrical installation | 2012 | Active | TA19 |
| A.R. WHITEFIELD ELECTRICAL LIMITED | 43210 · electrical installation | 2023 | Active | TA19 |
| CABLES ELECTRICAL LTD | 43210 · electrical installation; 33140 | 2020 | Active | TA19 |
| FOREST ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 1995 | Active | TA19 |
| NEXGEN SHOPFITTERS LIMITED | 43290 · other construction installation; 43120; 43390 | 2024 | Active - Proposal to Strike off | TA19 |
Heat and planning around Ilminster
In Ilminster last summer (2026) there were ≈4 nights that stayed above 18 °C — 6 times the 1991–2020 average of 0.7 (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.
15% of sampled postcodes in Ilminster sit in a conservation area (441 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.