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H. J. ALLEN PLUMBING & HEATING LIMITED: plumbing, heating and air-conditioning company in Dereham
H. J. ALLEN PLUMBING & HEATING LIMITED is an active limited company (no. 16920050), incorporated in 2025, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in NR19 (Dereham), and 38 similar companies have a registered office within 10 km. If you need an MCS-certified air-to-air installer, MCS lists 0 installers certified for air-to-air heat pumps yet (checked 25 Sep 2026), so no company here can offer the £2,500 grant route today.
Active
Within 10 km
38 similar companies within 10 km. Dereham
What homes around NR19 need
In NR19 last summer (2026) there were ≈8 nights that stayed above 18 °C — 5 times the 1991–2020 average of 1.6 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
10% of sampled postcodes in NR19 sit in a conservation area (on-record, 663 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).
Hot nights: ERA5-ARCO, June–August, minimum at or above 18 °C, 2026 against the 1991–2020 mean, retrieved 25 Sep 2026. Conservation-area share: sampled postcode points, snapshot 25 Sep 2026. Noise limit from the decision contract, checked 25 Sep 2026.
Nearest similar companies
| Company | Number | District | Distance |
|---|---|---|---|
| JGAS AIR CONDITIONING LTD | 14033248 | NR19 | under 0.1 km |
| ANGLIA DIAMOND HEATING SERVICES LIMITED | 07489075 | NR19 | ≈1.8 km |
| R F TRUCK SERVICES LTD. | 15866758 | NR19 | ≈1.9 km |
| BREWSTER HEATING LTD | 15869711 | NR19 | ≈1.9 km |
| MID NORFOLK HEATING LIMITED | 09986818 | NR19 | ≈2.1 km |
| MENDHAM PLUMBING & HEATING LIMITED | 06478586 | NR19 | ≈2.1 km |
| FRAPPELL & KNIGHT LIMITED | 05125477 | NR19 | ≈2.2 km |
| PRENTICE PLUMBING & HEATING LTD | 08918117 | NR19 | ≈2.2 km |
| ELLIOTT AND HARDING LTD | 14295892 | NR19 | ≈2.4 km |
| MILLS MACMILLAN LIMITED | 02719507 | NR19 | ≈2.5 km |
Company record
| Field | Value |
|---|---|
| Company number | 16920050 |
| Name | H. J. ALLEN PLUMBING & HEATING LIMITED |
| Status | Active |
| Incorporated | 18 Dec 2025 |
| SIC | 43220 · plumbing, heat and air-conditioning installation |
| Registered office postcode | NR19 2LQ |
| Outcode | NR19 |
| Nation | England |
| Air-to-air signal | not yet observed, checked 25 Sep 2026 |
| F-Gas | not yet observed, checked 25 Sep 2026 |
| MCS air-to-air | not yet observed, checked 25 Sep 2026 |
| Retrieved | 25 Sep 2026 |
| Dataset | https://download.companieshouse.gov.uk/BasicCompanyDataAsOneFile-2026-09-01.zip |
| Companies House page | Company 16920050 |
Companies House record: H. J. ALLEN PLUMBING & HEATING LIMITED, company 16920050, status Active, 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. Snapshot 1 Sep 2026, retrieved 25 Sep 2026. The 10 km count is equirectangular to 0.1 km. MCS air-to-air confirmed in this catalogue: 0, checked 25 Sep 2026.
Better than a reviews catalogue: the Companies House record, the district hot-night count and the MCS air-to-air observation are on one page.