Home / Installers / Harrow
OK PLUMBING AND HEATING LIMITED: plumbing, heating and air-conditioning company in Harrow
OK PLUMBING AND HEATING LIMITED is an active limited company (no. 12991900), incorporated in 2020, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in HA3 (Harrow), and 1,580 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
1,580 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 |
|---|---|---|---|
| PHOENIX HEATING LIMITED | 06054794 | HA3 | ≈0.3 km |
| M.Y. PLUMBING LTD | 11406681 | HA3 | ≈0.4 km |
| UK GAS & PLUMBING LIMITED | 07774166 | HA3 | ≈0.5 km |
| HEATING AND PLUMBING LONDON LTD | 17253358 | HA3 | ≈0.5 km |
| VHL FACILITIES LIMITED | 08138470 | HA3 | ≈0.5 km |
| HEWITSON HEATING & UTILITY SERVICES LTD | 13541558 | HA3 | ≈0.5 km |
| PLATINUM HEATING LIMITED | 07524738 | HA3 | ≈0.5 km |
| TVP FIRE LTD | 14294710 | HA3 | ≈0.6 km |
| COMMERCIAL DOMESTIC PROPERTY MAINTENANCE LTD | 13246555 | HA3 | ≈0.6 km |
| PS PLUMBING HEATING LTD | 13747305 | HA3 | ≈0.7 km |
Company record
| Field | Value |
|---|---|
| Company number | 12991900 |
| Name | OK PLUMBING AND HEATING LIMITED |
| Status | Active |
| Incorporated | 3 Nov 2020 |
| SIC | 43220 · plumbing, heat and air-conditioning installation |
| Registered office postcode | HA3 6BQ |
| 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 12991900 |
Companies House record: OK PLUMBING AND HEATING LIMITED, company 12991900, 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.