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STEPHEN MALLEN PLUMBING & HEATING SERVICES LTD: plumbing, heating and air-conditioning company in Langley Park
STEPHEN MALLEN PLUMBING & HEATING SERVICES LTD is an active limited company (no. 17124850), incorporated in 2026, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in DH7 (Langley Park), and 92 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
92 similar companies within 10 km. Langley Park
What homes around DH7 need
In DH7 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).
7% of sampled postcodes in DH7 sit in a conservation area (on-record, 1,259 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 |
|---|---|---|---|
| SEAN OXLEY PLUMBING & HEATING LTD | 17189128 | DH7 | ≈0.4 km |
| SMART WAYS HEATING & PLUMBING LTD | 12417306 | DH7 | ≈0.6 km |
| FORDHAM INTERIORS LIMITED | 12370258 | DH7 | ≈2.7 km |
| SCOTT BROTHERS HEATING LIMITED | 04402530 | DH7 | ≈3.0 km |
| BR-HVAC LIMITED | 07105296 | DH7 | ≈3.3 km |
| ECOFLOW PLUMBING SERVICES LTD | 15933974 | DH7 | ≈3.4 km |
| DAVID PARSONS LIMITED | 03959810 | DH7 | ≈3.5 km |
| MES HEATING LTD | 09003025 | DH7 | ≈3.7 km |
| JAS HEATING LTD | 17342502 | DH7 | ≈3.8 km |
| ASD PROPERTY PROJECTS LTD | 16608484 | DH7 | ≈3.9 km |
Company record
| Field | Value |
|---|---|
| Company number | 17124850 |
| Name | STEPHEN MALLEN PLUMBING & HEATING SERVICES LTD |
| Status | Active |
| Incorporated | 30 Mar 2026 |
| SIC | 43220 · plumbing, heat and air-conditioning installation |
| Registered office postcode | DH7 9FX |
| Outcode | DH7 |
| 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 17124850 |
Companies House record: STEPHEN MALLEN PLUMBING & HEATING SERVICES LTD, company 17124850, 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.