Y Fenni: plumbing, heating and air-conditioning companies
Y Fenni 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 NP7, summer 2026 had ≈7 nights above 18 °C there (21 times the 1991–2020 average of 0.3).
SIC 43220
Open a company
CARBON WARMA LTD, incorporated 2025, status Active - Proposal to Strike off.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| CARBON WARMA LTD | 2025 | Active - Proposal to Strike off | NP7 |
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
251 plumbing companies (SIC 43220) have a registered office within 25 km. The nearest 10 are listed.
| Company | Number | District | Distance |
|---|---|---|---|
| R WILLIAMS PLUMBING & HEATING (ABERGAVENNY) LTD | 15253593 | NP7 | ≈0.2 km |
| MIRAGE PLUMBING SUPPLIES LIMITED | 06930752 | NP7 | ≈0.7 km |
| J HOLLAND PLUMBING AND HEATING LTD | 13383685 | NP7 | ≈1.1 km |
| SPARTAN HEATING & PLUMBING SERVICES LTD | 13305227 | NP7 | ≈2.0 km |
| WCR PLUMBING AND MAINTENANCE LTD | 11942503 | NP7 | ≈2.3 km |
| GAS MARK ONE LIMITED | 12437826 | NP7 | ≈3.0 km |
| C WALTERS HEATING SERVICES LTD | 13997142 | NP7 | ≈5.7 km |
| SMART HEATING SOLUTIONS (SW ) LTD | 14730624 | NP7 | ≈6.0 km |
| AB PLUMBING AND PROPERTY SERVICES LTD | 16359092 | NP7 | ≈6.7 km |
| T & C MAINTENANCE SERVICES (WALES) LIMITED | 07570470 | NP4 | ≈6.9 km |
Heat and planning around Y Fenni
In Y Fenni last summer (2026) there were ≈7 nights that stayed above 18 °C — 21 times the 1991–2020 average of 0.3 (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.
19% of sampled postcodes in Y Fenni sit in a conservation area (1,068 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.