Llangollen: plumbing, heating and air-conditioning companies
Llangollen has 4 plumbing, heating and air-conditioning companies (SIC 43220) and 6 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 LL20, summer 2026 had ≈1 nights above 18 °C there (8 times the 1991–2020 average of 0.1).
SIC 43220
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A FLETCHER PLUMBING AND HEATING LTD, incorporated 2025, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| A FLETCHER PLUMBING AND HEATING LTD | 2025 | Active | LL20 |
| WHITES CK LIMITED | 2026 | Active | LL20 |
| AW RENEWABLES AND HEATING LTD | 2023 | Active - Proposal to Strike off | LL20 |
| SOLUTIONS PLUMBING & HEATING SERVICES LTD | 2020 | Active - Proposal to Strike off | LL20 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| RB MARINE & LIFTING SERVICES LTD | 43290 · other construction installation; 42910; 52290 | 2022 | Active | LL20 |
| J & J RICHARDSON LIMITED | 43210 · electrical installation | 2007 | Active | LL20 |
| J&M BUILDING AND JOINERY LTD | 43290 · other construction installation; 41100 | 2024 | Active - Proposal to Strike off | LL20 |
| DEE VALLEY SOLAR LTD | 43210 · electrical installation | 2025 | Active - Proposal to Strike off | LL20 |
| RJW ELECTRICAL AND SOLAR LTD | 43210 · electrical installation | 2011 | Liquidation | LL20 |
| D BIRCH ELECTRICAL LTD | 43210 · electrical installation | 2013 | Active - Proposal to Strike off | LL20 |
Heat and planning around Llangollen
In Llangollen last summer (2026) there were ≈1 nights that stayed above 18 °C — 8 times the 1991–2020 average of 0.1 (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.
17% of sampled postcodes in Llangollen sit in a conservation area (384 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.