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GSJ PLUMBING & HEATING LTD: plumbing, heating and air-conditioning company in Isleworth
GSJ PLUMBING & HEATING LTD is an active limited company (no. 15510771), incorporated in 2024, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in TW7 (Isleworth), and 1,323 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
1,323 similar companies within 10 km. Isleworth
What homes around TW7 need
In TW7 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).
37% of sampled postcodes in TW7 sit in a conservation area (on-record, 757 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 |
|---|---|---|---|
| GPH (LONDON) LIMITED | 10035400 | TW7 | ≈0.2 km |
| PGF PLUMBING LTD | 10212965 | TW7 | ≈0.3 km |
| ARCAS & CONSTRUCTION UK LTD | 13849361 | TW7 | ≈0.4 km |
| SW LONDON GAS SERVICES LTD | 09994237 | TW3 | ≈0.6 km |
| PAREDES PLUMBING LTD | 14004466 | TW2 | ≈0.6 km |
| BEACON BATHROOMS LTD | 14952135 | TW3 | ≈0.7 km |
| JACKS OF BLACKHEATH PLUMBING AND HEATING LIMITED | 17222701 | TW2 | ≈0.8 km |
| I LOVE PLUMBING LIMITED | 07597978 | TW7 | ≈0.8 km |
| RAF PLUMBING & HEATING LTD | 12697314 | TW3 | ≈0.8 km |
| REGISTERED GAS SERVICES LTD | 06516517 | TW3 | ≈0.8 km |
Company record
| Field | Value |
|---|---|
| Company number | 15510771 |
| Name | GSJ PLUMBING & HEATING LTD |
| Status | Active |
| Incorporated | 21 Feb 2024 |
| SIC | 43220 · plumbing, heat and air-conditioning installation |
| Registered office postcode | TW7 7PG |
| Outcode | TW7 |
| 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 15510771 |
Companies House record: GSJ PLUMBING & HEATING LTD, company 15510771, 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.