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B.J.DENNIS & SON LTD: plumbing, heating and air-conditioning company in Norwich
B.J.DENNIS & SON LTD is an active limited company (no. 14622040), incorporated in 2023, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in NR10 (Norwich), and 249 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
249 similar companies within 10 km. Norwich
What homes around NR10 need
In NR10 last summer (2026) there were ≈10 nights that stayed above 18 °C — 6 times the 1991–2020 average of 1.8 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
8% of sampled postcodes in NR10 sit in a conservation area (on-record, 734 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 |
|---|---|---|---|
| ABBOTT BUILDING SERVICES LTD | 13739911 | NR10 | ≈0.2 km |
| ESSENTIAL HEATING SOLUTIONS LTD | 13475468 | NR10 | ≈0.4 km |
| NORWICH HEATING SOLUTIONS LIMITED | 17372825 | NR10 | ≈0.4 km |
| EASTERN HEAT LTD | 11554780 | NR10 | ≈1.1 km |
| NORFOLK VENTILATION SYSTEMS LTD | 14688097 | NR8 | ≈1.8 km |
| JNL RENEWABLES LTD | 15947944 | NR8 | ≈2.5 km |
| FISHERBULLEN LIMITED | 00381800 | NR8 | ≈2.6 km |
| EYRE BUILDING SERVICES GROUP LIMITED | 00817316 | NR8 | ≈2.6 km |
| JRW HEATING SOLUTIONS LTD | 16359991 | NR8 | ≈2.7 km |
| P J PLUMBING HEATING & MAINTENANCE LIMITED | 04875314 | NR8 | ≈2.8 km |
Company record
| Field | Value |
|---|---|
| Company number | 14622040 |
| Name | B.J.DENNIS & SON LTD |
| Status | Active |
| Incorporated | 27 Jan 2023 |
| SIC | 43220 · plumbing, heat and air-conditioning installation |
| Registered office postcode | NR10 3ST |
| Outcode | NR10 |
| 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 14622040 |
Companies House record: B.J.DENNIS & SON LTD, company 14622040, 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.