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WESTOAK PLUMBING LTD: plumbing, heating and air-conditioning company in Southampton
WESTOAK PLUMBING LTD is an active limited company (no. 12403413), incorporated in 2020, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in SO18 (Southampton), and 469 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
469 similar companies within 10 km. Southampton
What homes around SO18 need
In SO18 last summer (2026) there were ≈7 nights that stayed above 18 °C — 5 times the 1991–2020 average of 1.3 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
1% of sampled postcodes in SO18 sit in a conservation area (on-record, 938 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 |
|---|---|---|---|
| M CURTIS GAS SERVICES LIMITED | 11831553 | SO18 | ≈0.7 km |
| ENVIROTHERMAL HEATING SOLUTIONS LTD | 12125113 | SO18 | ≈0.8 km |
| H HEATING AND PLUMBING LTD | 17179706 | SO18 | ≈0.8 km |
| RADIANT GAS SERVICES LTD | 12776910 | SO30 | ≈0.8 km |
| BLUE DIAMOND HEATING SERVICES LIMITED | 10810785 | SO18 | ≈0.9 km |
| INPUT BATHROOMS LIMITED | 12060337 | SO18 | ≈1.0 km |
| CONSTRUCTIONS MAX LTD | 10739296 | SO18 | ≈1.1 km |
| GHP SOUTH LTD | 11124140 | SO19 | ≈1.2 km |
| GLC PLUMBING & HEATING LTD | 08013907 | SO18 | ≈1.2 km |
| CUTLER HOME SOLUTIONS LTD | 10980292 | SO19 | ≈1.2 km |
Company record
| Field | Value |
|---|---|
| Company number | 12403413 |
| Name | WESTOAK PLUMBING LTD |
| Status | Active |
| Incorporated | 14 Jan 2020 |
| SIC | 43220 · plumbing, heat and air-conditioning installation |
| Registered office postcode | SO18 5QS |
| Outcode | SO18 |
| 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 12403413 |
Companies House record: WESTOAK PLUMBING LTD, company 12403413, 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.