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J. C. SMALLSHAW PLUMBING & HEATING LIMITED: plumbing, heating and air-conditioning company in St Helens
J. C. SMALLSHAW PLUMBING & HEATING LIMITED is an active limited company (no. 04771812), incorporated in 2003, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in WA11 (St Helens), and 321 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
321 similar companies within 10 km. St Helens
What homes around WA11 need
In WA11 last summer (2026) there were ≈4 nights that stayed above 18 °C — 4 times the 1991–2020 average of 1.0 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
1% of sampled postcodes in WA11 sit in a conservation area (on-record, 1,031 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 |
|---|---|---|---|
| ELITE AC NORTH WEST LTD | 13996423 | WA11 | ≈0.9 km |
| J MAGUIRE REFRIGERATION LIMITED | 05374783 | WN4 | ≈1.0 km |
| FIX IT PLUMBING & HEATING LIMITED | 08447607 | WA11 | ≈1.3 km |
| NEW PLUMBING LTD | 10504063 | WN4 | ≈1.3 km |
| ORRELL PLUMBING SOLUTIONS LTD | 11860126 | WN4 | ≈1.3 km |
| A CAMPBELL HEATING & GAS LTD | 14194283 | WN4 | ≈1.3 km |
| THE WIGAN HEATING COMPANY LTD | 14200850 | WN4 | ≈1.3 km |
| CALM BATHROOM ADAPTIONS LTD | 15246940 | WN4 | ≈1.3 km |
| MAKERFIELD HEATING LTD | 17014370 | WN4 | ≈1.3 km |
| JKK BUILDERS LIMITED | 14226569 | WA11 | ≈1.5 km |
Company record
| Field | Value |
|---|---|
| Company number | 04771812 |
| Name | J. C. SMALLSHAW PLUMBING & HEATING LIMITED |
| Status | Active |
| Incorporated | 20 May 2003 |
| SIC | 43220 · plumbing, heat and air-conditioning installation |
| Registered office postcode | WA11 9SB |
| Outcode | WA11 |
| 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 04771812 |
Companies House record: J. C. SMALLSHAW PLUMBING & HEATING LIMITED, company 04771812, 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.