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RSA MECHANICAL INSTALLATIONS LTD: plumbing, heating and air-conditioning company in Ruislip
RSA MECHANICAL INSTALLATIONS LTD is an active limited company with a proposal to strike off (no. 12231276), incorporated in 2019, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in HA4 (Ruislip), and 1,331 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
1,331 similar companies within 10 km. Ruislip
What homes around HA4 need
In HA4 last summer (2026) there were ≈10 nights that stayed above 18 °C — 7 times the 1991–2020 average of 1.5 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
7% of sampled postcodes in HA4 sit in a conservation area (on-record, 1,137 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 |
|---|---|---|---|
| WARMAHOME GROUP LTD | 09831517 | HA4 | under 0.1 km |
| TDC PLUMBING AND HEATING LTD | 12899652 | HA4 | under 0.1 km |
| TDC COMMERCIAL PLUMBING & HEATING LTD | 15550670 | HA4 | under 0.1 km |
| M J NEWTON ELECTRICAL CONTRACTORS LIMITED | 03493836 | HA4 | ≈0.1 km |
| LOFTUS ENGINEERING SERVICES LTD. | 06598842 | HA4 | ≈0.1 km |
| TOWER MECHANICAL SERVICES LTD | 06717567 | HA4 | ≈0.1 km |
| MPG HEATING LTD | 07454348 | HA4 | ≈0.1 km |
| CSD GAS LIMITED | 09331209 | HA4 | ≈0.1 km |
| ORGANIC HEATING LTD | 10925682 | HA4 | ≈0.1 km |
| HARRY'S HEATING LIMITED | 13630686 | HA4 | ≈0.1 km |
Company record
| Field | Value |
|---|---|
| Company number | 12231276 |
| Name | RSA MECHANICAL INSTALLATIONS LTD |
| Status | Active - Proposal to Strike off |
| Incorporated | 27 Sep 2019 |
| SIC | 43220 · plumbing, heat and air-conditioning installation |
| Registered office postcode | HA4 8JY |
| Outcode | HA4 |
| 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 12231276 |
Companies House record: RSA MECHANICAL INSTALLATIONS LTD, company 12231276, 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.