Trearddur Bay: plumbing, heating and air-conditioning companies
Trearddur Bay 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 LL65, summer 2026 had ≈4 nights above 18 °C there (4 times the 1991–2020 average of 0.9).
SIC 43220
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NORTHERN HEATING LTD, incorporated 2024, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| NORTHERN HEATING LTD | 2024 | Active | LL65 |
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
17 plumbing companies (SIC 43220) have a registered office within 25 km. The nearest 10 are listed.
| Company | Number | District | Distance |
|---|---|---|---|
| D GRIFFITHS PLUMBING & HEATING LIMITED | 16173954 | LL65 | ≈1.9 km |
| SKL PLUMBING & HEATING LIMITED | 15139069 | LL65 | ≈2.5 km |
| RYDER CONSTRUCTION LTD | 16292486 | LL65 | ≈3.9 km |
| RUSSELL GAS SERVICES LTD | 11594426 | LL65 | ≈4.0 km |
| JAMIE PARKES PLUMBING & HEATING LIMITED | 14136777 | LL65 | ≈4.9 km |
| PARKINSON PLUMBING AND HEATING LTD | 17254900 | LL65 | ≈5.0 km |
| DEWI ROBERTS PLUMBING & HEATING LTD | 15727749 | LL65 | ≈12.4 km |
| W.E. KNEES LIMITED | 01297415 | LL65 | ≈13.5 km |
| HODGE PLUMBING & PROPERTY MAINTENANCE LTD | 12148495 | LL71 | ≈17.4 km |
| A J PIPELINE (ANGLESEY) LIMITED | 08423455 | LL77 | ≈18.6 km |
Heat and planning around Trearddur Bay
In Trearddur Bay last summer (2026) there were ≈4 nights that stayed above 18 °C — 4 times the 1991–2020 average of 0.9 (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.
6% of sampled postcodes in Trearddur Bay sit in a conservation area (923 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.