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H CLARKE & SONS LIMITED: plumbing, heating and air-conditioning company in Northallerton
H CLARKE & SONS LIMITED is an active limited company (no. 04643501), incorporated in 2003, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in DL6 (Northallerton), and 11 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
11 similar companies within 10 km. Northallerton
What homes around DL6 need
In DL6 last summer (2026) there were ≈0 nights that stayed above 18 °C — below the 1991–2020 average of 0.2 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
9% of sampled postcodes in DL6 sit in a conservation area (on-record, 686 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 |
|---|---|---|---|
| HARRY CLARKE AND SONS LIMITED | 06747297 | DL6 | under 0.1 km |
| LIGHTFOOT PLUMBING & HEATING LIMITED | 07151908 | DL6 | ≈0.3 km |
| PLUMBCRAFT (YORKS) LTD | 10714112 | DL7 | ≈0.9 km |
| PLUMBING PLUS OF YORKSHIRE LIMITED | 09181312 | DL7 | ≈1.0 km |
| LIVING FIRE CENTRE LTD | 14183053 | DL7 | ≈1.0 km |
| THETA INSTALLATIONS LIMITED | 13484867 | DL6 | ≈1.3 km |
| JHK BIOMASS SERVICES LTD | 14227113 | DL6 | ≈1.4 km |
| S.WILLIAMS PLUMBING AND HEATING LTD | 10028882 | DL6 | ≈1.6 km |
| PJM (YORKSHIRE) LIMITED | 14455783 | DL7 | ≈1.7 km |
| M PRESTON PLUMBING & HEATING LIMITED | 14189179 | DL7 | ≈7.0 km |
Company record
| Field | Value |
|---|---|
| Company number | 04643501 |
| Name | H CLARKE & SONS LIMITED |
| Status | Active |
| Incorporated | 21 Jan 2003 |
| SIC | 43220 · plumbing, heat and air-conditioning installation |
| Registered office postcode | DL6 2NG |
| Outcode | DL6 |
| 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 04643501 |
Companies House record: H CLARKE & SONS LIMITED, company 04643501, 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.