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DHD PLUMBING COMPANY LIMITED: plumbing, heating and air-conditioning company in Harrow
DHD PLUMBING COMPANY LIMITED is an active limited company with a proposal to strike off (no. 11455673), incorporated in 2018, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in HA3 (Harrow), and 1,873 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 - Proposal to Strike off
Within 10 km
1,873 similar companies within 10 km. Harrow
What homes around HA3 need
In HA3 last summer (2026) there were ≈12 nights that stayed above 18 °C — 8 times the 1991–2020 average of 1.6 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
4% of sampled postcodes in HA3 sit in a conservation area (on-record, 1,261 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 |
|---|---|---|---|
| AGUAHEAT LIMITED | 05982011 | HA3 | ≈0.4 km |
| H & C AIRCON LIMITED | 04946525 | HA3 | ≈0.4 km |
| PEARL GAS & HEATING LTD | 14636941 | HA3 | ≈0.5 km |
| ALDOK PLUMBING SERVICES LTD | 11607608 | HA1 | ≈0.6 km |
| AKSHAR ENERGY LTD | 15777206 | HA3 | ≈0.6 km |
| GAS SAFE SERVICE LTD | 08064215 | HA3 | ≈0.7 km |
| M.Z. PLUMBING & HEATING LTD | 08433708 | HA1 | ≈0.7 km |
| MGLD CONSTRUCT LTD | 10685052 | HA1 | ≈0.8 km |
| SEC ROOFINGS LTD | 16874197 | HA1 | ≈0.9 km |
| JNOAD LIMITED | 01922719 | HA1 | ≈1.0 km |
Company record
| Field | Value |
|---|---|
| Company number | 11455673 |
| Name | DHD PLUMBING COMPANY LIMITED |
| Status | Active - Proposal to Strike off |
| Incorporated | 9 Jul 2018 |
| SIC | 43220 · plumbing, heat and air-conditioning installation |
| Registered office postcode | HA3 0AS |
| Outcode | HA3 |
| 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 11455673 |
Companies House record: DHD PLUMBING COMPANY LIMITED, company 11455673, status Active - Proposal to Strike off, 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.