North Walsham: plumbing, heating and air-conditioning companies
North Walsham has 10 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 NR28, summer 2026 had ≈9 nights above 18 °C there (4 times the 1991–2020 average of 2.2).
SIC 43220
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A MOYS PLUMBING SERVICES LTD, incorporated 2000, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| COASTAL HEATING NORFOLK LTD | 2023 | Active | NR28 |
| LEE WEST PLUMBING & HEATING LTD | 2015 | Active | NR28 |
| NR HEATING & PLUMBING LTD | 2018 | Active | NR28 |
| KUDOS BUILDING SERVICES LTD | 2012 | Active | NR28 |
| RM HEATING SERVICES LTD | 2018 | Active | NR28 |
| ESSENTIAL PLUMBING SOLUTIONS LTD | 2022 | Active | NR28 |
| PAULS 24/7 EMERGENCY PLUMBING & GAS (NORFOLK) LTD | 2026 | Active | NR28 |
| A MOYS PLUMBING SERVICES LTD | 2000 | Active | NR28 |
| THORPE PLUMBING & HEATING SERVICES LTD | 2024 | Active | NR28 |
| EVO HEAT SERVICES LIMITED | 2021 | Liquidation | NR28 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| NEIL WILLIAMS HOLDINGS LIMITED | 43210 · electrical installation | 2024 | Active | NR28 |
| JOHNSON ELECTRICAL (NORTH WALSHAM) LIMITED | 43210 · electrical installation | 2013 | Active | NR28 |
| ANGLIAN ELECTRICAL CONTRACTORS LIMITED | 43210 · electrical installation | 2006 | Active | NR28 |
| HERITAGE FENCING AND LANDSCAPING LTD | 43290 · other construction installation; 81300 | 2026 | Active | NR28 |
| HOLLOW TREE CONSTRUCTION LIMITED | 43290 · other construction installation | 2023 | Active | NR28 |
| NICO ELECTRICAL CONTRACTING LIMITED | 43210 · electrical installation; 41202 | 2022 | Active | NR28 |
Heat and planning around North Walsham
In North Walsham last summer (2026) there were ≈9 nights that stayed above 18 °C — 4 times the 1991–2020 average of 2.2 (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.
6% of sampled postcodes in North Walsham sit in a conservation area (603 live postcodes across 1 districts).
In England 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.