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O'SULLIVAN BUILDING PERFORMANCE LIMITED: plumbing, heating and air-conditioning company in Hounslow
O'SULLIVAN BUILDING PERFORMANCE LIMITED is an active limited company (no. 17069119), incorporated in 2026, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in TW5 (Hounslow), and 1,348 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
1,348 similar companies within 10 km. Hounslow
What homes around TW5 need
In TW5 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).
14% of sampled postcodes in TW5 sit in a conservation area (on-record, 399 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 |
|---|---|---|---|
| BEST PLUMBING LIMITED | 14433826 | TW5 | under 0.1 km |
| SUSTEK LTD | 16810277 | TW5 | ≈0.2 km |
| WA HEATING SERVICES LTD | 14157586 | TW5 | ≈0.2 km |
| CFP COMPLETE HOME SERVICES LTD | 17274061 | TW5 | ≈0.3 km |
| C.D. PLUMBING & GAS LIMITED | 09481022 | TW3 | ≈0.4 km |
| APEXERA LIMITED | 17061744 | TW5 | ≈0.4 km |
| BACOS IMPROVEMENTS LIMITED | 17103853 | TW5 | ≈0.5 km |
| WEST THAMES GAS LTD | 13037168 | TW5 | ≈0.5 km |
| PRT4U LTD | 14824561 | TW5 | ≈0.6 km |
| ACL ASSESSMENTS LTD | 15039329 | TW5 | ≈0.6 km |
Company record
| Field | Value |
|---|---|
| Company number | 17069119 |
| Name | O'SULLIVAN BUILDING PERFORMANCE LIMITED |
| Status | Active |
| Incorporated | 4 Mar 2026 |
| SIC | 43220 · plumbing, heat and air-conditioning installation; 43390; 81100 |
| Registered office postcode | TW5 0JE |
| Outcode | TW5 |
| 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 17069119 |
Companies House record: O'SULLIVAN BUILDING PERFORMANCE LIMITED, company 17069119, 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.