Hengoed: plumbing, heating and air-conditioning companies
Hengoed has 9 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 CF82, summer 2026 had ≈4 nights above 18 °C there (24 times the 1991–2020 average of 0.2).
SIC 43220
Open a company
C.B. REFRIGERATION LIMITED, incorporated 1985, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| C.B. REFRIGERATION LIMITED | 1985 | Active | CF82 |
| CW PRECISION PLUMBING LTD | 2025 | Active | CF82 |
| DPR PLUMBING AND HEATING LTD | 2022 | Active | CF82 |
| PLUMBING HOT LTD | 2024 | Active | CF82 |
| CLSM HEATING AND PLUMBING LTD | 2020 | Active | CF82 |
| FISH HEATING SERVICES LTD | 2006 | Active | CF82 |
| CAN'T STOP PLUMBING LTD | 2020 | Active | CF82 |
| TDS PLUMBING CONTRACTORS LIMITED | 2024 | Active | CF82 |
| G.R PLUMBING MERCHANTS LTD | 2024 | Active - Proposal to Strike off | CF82 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| M G RIGGING LIMITED | 43290 · other construction installation | 2019 | Active | CF82 |
| ZENER ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2013 | Active | CF82 |
| NOVA DOOR SYSTEMS LTD | 43290 · other construction installation | 2021 | Active | CF82 |
| LYRA INDUSTRIAL REFRIGERATION LTD | 43290 · other construction installation; 71121 | 2025 | Active | CF82 |
| HEDLUNDS PROPERTY AND ENERGY LTD | 43210 · electrical installation | 2008 | Active | CF82 |
| KR HOME IMPROVEMENTS LTD | 43290 · other construction installation | 2025 | Active | CF82 |
| IHSELECTRICAL LIMITED | 43210 · electrical installation | 2025 | Active | CF82 |
| W&W SIGNATURE SPACES LTD | 43290 · other construction installation; 41202; 43390; 43999 | 2026 | Active | CF82 |
| SEREN INSTALLS LTD | 43210 · electrical installation | 2015 | Active | CF82 |
| DADSON ELECTRICAL LIMITED | 43210 · electrical installation | 2016 | Active | CF82 |
| OLC ELECTRICAL & FIRE LTD | 43210 · electrical installation | 2025 | Active | CF82 |
| S.E.T. ELECTRICAL CONTRACTORS LIMITED | 43210 · electrical installation | 2006 | Active | CF82 |
Heat and planning around Hengoed
In Hengoed last summer (2026) there were ≈4 nights that stayed above 18 °C — 24 times the 1991–2020 average of 0.2 (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.
4% of sampled postcodes in Hengoed sit in a conservation area (499 live postcodes across 1 districts).
In Wales 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.