Bangor: plumbing, heating and air-conditioning companies
Bangor has 18 plumbing, heating and air-conditioning companies (SIC 43220) and 21 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 LL57, summer 2026 had ≈3 nights above 18 °C there (11 times the 1991–2020 average of 0.3).
SIC 43220
Open a company
ASTBURY HEATING LIMITED, incorporated 2005, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| ROBERTSON HEATING SERVICES NW LIMITED | 2024 | Active | LL57 |
| L-ECTRICAL LW LIMITED | 2022 | Active | LL57 |
| KEITH THOMAS PLUMBING & HEATING LIMITED | 2013 | Active | LL57 |
| COMPLETE PLUMBING SOLUTIONS UK LIMITED | 2022 | Active | LL57 |
| LEWINGTON & TEMPLER LTD | 2007 | Active | LL57 |
| HOME OF HEATING LTD | 2011 | Active | LL57 |
| ROSE HEATING LTD | 2023 | Active | LL57 |
| BWA HEATING SOLUTIONS LTD | 2023 | Active | LL57 |
| J H PLUMBING AND RENEWABLES LTD | 2025 | Active | LL57 |
| RICH EVANS PLUMBING AND HEATING LTD | 2024 | Active | LL57 |
| YARDLEY PROPERTY DEVELOPMENT LIMITED | 2023 | Active | LL57 |
| J&G BUILDING AND ASSEMBLING LTD | 2026 | Active | LL57 |
| ASTBURY HEATING LIMITED | 2005 | Active | LL57 |
| ECOHEAT RENEWABLE ENERGY LTD | 2024 | Active | LL57 |
| J ALWYN ROBERTS PLUMBING & HEATING CYF | 2010 | Active | LL57 |
| ERYRI RENEWABLES LTD | 2022 | Active | LL57 |
| TUBS 2 POOLS LTD | 2024 | Active | LL57 |
| MATHEW NOTTINGHAM CYF | 2023 | Active | LL57 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| GREY KNIGHT GROUP LTD | 43290 · other construction installation; 41100; 43310; 43341 | 2026 | Active | LL57 |
| GS FIREPLACE INSTALLATIONS LTD | 43290 · other construction installation | 2022 | Active | LL57 |
| OCTIO OFFSITE (WALES) LTD | 43290 · other construction installation | 2025 | Active | LL57 |
| PARAGON FIRE PROTECTION (NORTH WALES) LTD | 43290 · other construction installation | 2025 | Active | LL57 |
| COASTLINE ELECTRICAL LTD | 43210 · electrical installation | 2019 | Active | LL57 |
| MRM TECHNICAL SOLUTIONS LTD | 43210 · electrical installation | 2026 | Active | LL57 |
| PAUL EDWARDS ELECTRICAL LIMITED | 43210 · electrical installation | 2025 | Active | LL57 |
| ELECTRICBUILDERS LTD | 43210 · electrical installation | 2025 | Active | LL57 |
| LWO ELECTRICAL LTD | 43210 · electrical installation | 2024 | Active | LL57 |
| OWEN & PALMER LIMITED | 43210 · electrical installation | 1973 | Active | LL57 |
| PATRICK ROCHE LIMITED | 43210 · electrical installation | 2012 | Active | LL57 |
| MON ELECTRICAL LTD | 43210 · electrical installation | 2023 | Active | LL57 |
| RELM GROUP LTD | 43290 · other construction installation; 41201; 41202; 74902 | 2018 | Active | LL57 |
| BLACKHAM ELECTRICAL LIMITED | 43210 · electrical installation | 2011 | Active | LL57 |
| ORETS LIMITED | 43210 · electrical installation | 2023 | Active | LL57 |
| CONNECT ELECTRICAL ENGINEERING LTD | 43210 · electrical installation | 2023 | Active | LL57 |
| NEXUS ENGINEERING (NW) LTD | 43210 · electrical installation | 2025 | Active | LL57 |
| P&K TIMBER FRAME LTD | 43290 · other construction installation | 2022 | Active | LL57 |
| JONES AND WHITEHEAD LIMITED | 43210 · electrical installation | 1971 | Active | LL57 |
| TBARTON ELECTRICAL LTD | 43210 · electrical installation | 2025 | Active | LL57 |
| ERYRI SOLAR SOLUTIONS LTD | 43210 · electrical installation | 2024 | Active - Proposal to Strike off | LL57 |
Heat and planning around Bangor
In Bangor last summer (2026) there were ≈3 nights that stayed above 18 °C — 11 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.
9% of sampled postcodes in Bangor sit in a conservation area (905 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.