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ST1 PLUMBING LIMITED: plumbing, heating and air-conditioning company in Chelmsford
ST1 PLUMBING LIMITED is an active limited company with a proposal to strike off (no. 10035582), incorporated in 2016, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in CM1 (Chelmsford), and 155 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
155 similar companies within 10 km. Chelmsford
What homes around CM1 need
In CM1 last summer (2026) there were ≈8 nights that stayed above 18 °C — 4 times the 1991–2020 average of 2.2 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
6% of sampled postcodes in CM1 sit in a conservation area (on-record, 1,559 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 |
|---|---|---|---|
| MAYBRICK LIMITED | 04324715 | CM1 | ≈0.4 km |
| MAYBRICK INSPECTION & DESIGN LIMITED | 09829918 | CM1 | ≈0.4 km |
| CGO PLUMBING AND ELECTRICAL LIMITED | 10473180 | CM1 | ≈0.4 km |
| RADIANT HEATING & PLUMBING LIMITED | 08191878 | CM1 | ≈0.8 km |
| COMMERCIAL HEATING AND PLUMBING LIMITED | 15732824 | CM2 | ≈1.0 km |
| WARM HOME ESSEX LIMITED | 13958763 | CM2 | ≈1.2 km |
| BUILDER PROJECTS LTD | 12976789 | CM2 | ≈1.3 km |
| TT COOLING LIMITED | 15963212 | CM2 | ≈1.3 km |
| PURE HEAT PLUMBING LTD | 17212300 | CM2 | ≈1.3 km |
| GOLD STANDARD PLUMBING LTD | 15848401 | CM2 | ≈1.3 km |
Company record
| Field | Value |
|---|---|
| Company number | 10035582 |
| Name | ST1 PLUMBING LIMITED |
| Status | Active - Proposal to Strike off |
| Incorporated | 1 Mar 2016 |
| SIC | 43220 · plumbing, heat and air-conditioning installation |
| Registered office postcode | CM1 3BP |
| Outcode | CM1 |
| 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 10035582 |
Companies House record: ST1 PLUMBING LIMITED, company 10035582, 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.