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NR4: plumbing, heating and air-conditioning companies in Norwich
NR4 (Norwich) has 6 plumbing, heating and air-conditioning companies registered here (SIC 43220) and 4 electrical and other installation companies (Companies House, 1 Sep 2026); 0 are MCS-certified for air-to-air yet. If the summer is the question, NR4 had ≈7 nights above 18 °C in 2026 (4 times the 1991–2020 average of 1.7).
NR4
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ANGLIAN DRAINAGE LTD, incorporated 2018, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| ANGLIAN DRAINAGE LTD | 2018 | Active | NR4 |
| DWS PLUMBING & HEATING LTD | 2016 | Active | NR4 |
| ECO COOLING SERVICES LIMITED | 2023 | Active | NR4 |
| ECOPURE SOLUTIONS LTD | 2020 | Active | NR4 |
| EVAN RICHARDS PLUMBING AND HEATING LIMITED | 2008 | Active | NR4 |
| FRASER MAINTENANCE LIMITED | 2012 | Active | NR4 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| A+ ELECTRICAL LIMITED | 43210 · electrical installation | 2003 | Active | NR4 |
| AL-HAYAT MARKETING LIMITED | 43210 · electrical installation; 47910 | 2024 | Active | NR4 |
| ASTEC LIMITED | 43210 · electrical installation | 1989 | Active | NR4 |
| EMPOWER SERVICES LIMITED | 43210 · electrical installation | 2006 | Active | NR4 |
What homes around NR4 need
In NR4 last summer (2026) there were ≈7 nights that stayed above 18 °C — 4 times the 1991–2020 average of 1.7 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
6% of sampled postcodes in NR4 sit in a conservation area (on-record, 568 live postcodes).
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 for NR4, June–August, minimum at or above 18 °C, retrieved 25 Sep 2026. Conservation-area share: sampled postcode points in NR4, snapshot 25 Sep 2026.
Better than a town-wide list: these are the registered offices in NR4, with that district's hot nights and planning rule.