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TEN TEN DEVELOPMENTS LTD: plumbing, heating and air-conditioning company in Harrow
TEN TEN DEVELOPMENTS LTD is an active limited company (no. 13128214), incorporated in 2021, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in HA3 (Harrow), and 1,972 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
1,972 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 |
|---|---|---|---|
| AA PRECISION PLUMBING LTD | 17130506 | HA9 | ≈0.7 km |
| KTX SOLUTION LTD | 16195787 | HA3 | ≈0.7 km |
| RVI LONDON LTD | 16426424 | NW9 | ≈0.7 km |
| AVE SERVICES LTD | 17036839 | NW9 | ≈0.7 km |
| CAPITAL AIR SYSTEMS LTD | 17060509 | HA9 | ≈0.8 km |
| MGP LONDON LTD | 08582368 | HA9 | ≈0.8 km |
| FO SERVICES GROUP LTD | 16519254 | HA3 | ≈0.9 km |
| WELTEC ENGINEERING(UK) LTD | 07319658 | HA3 | ≈0.9 km |
| GASWORKS PLUMBING AND HEATING LIMITED | 15112299 | HA3 | ≈0.9 km |
| H K HEATING LIMITED | 12377175 | HA3 | ≈0.9 km |
Company record
| Field | Value |
|---|---|
| Company number | 13128214 |
| Name | TEN TEN DEVELOPMENTS LTD |
| Status | Active |
| Incorporated | 12 Jan 2021 |
| SIC | 43220 · plumbing, heat and air-conditioning installation |
| Registered office postcode | HA3 9TP |
| 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 13128214 |
Companies House record: TEN TEN DEVELOPMENTS LTD, company 13128214, 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.