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G J COOK LIMITED: plumbing, heating and air-conditioning company in Sheffield
G J COOK LIMITED is an active limited company (no. 08794317), incorporated in 2013, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in S36 (Sheffield), and 108 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
108 similar companies within 10 km. Sheffield
What homes around S36 need
In S36 last summer (2026) there were ≈3 nights that stayed above 18 °C — 11 times the 1991–2020 average of 0.3 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
9% of sampled postcodes in S36 sit in a conservation area (on-record, 763 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 |
|---|---|---|---|
| CRH PLUMBING & HEATING ENGINEER LIMITED | 17144436 | S36 | ≈0.6 km |
| LPG ENERGY LIMITED | 09632523 | S36 | ≈0.6 km |
| PEAK PIPEWORK LIMITED | 08441442 | HD8 | ≈2.5 km |
| CLARKE PLUMBING AND HEATING SOLUTIONS LTD | 14601908 | HD8 | ≈2.5 km |
| GREENSTONE HEAT PUMPS AND UNDERFLOOR LIMITED | 07097162 | S36 | ≈2.9 km |
| E-GENER8 LTD | 12872359 | S36 | ≈3.1 km |
| PARSONS HEATING & PLUMBING LTD | 13334771 | HD8 | ≈3.2 km |
| DELTA T HEATING SOLUTIONS LIMITED | 16320357 | S36 | ≈3.4 km |
| PENISTONE GAS SERVICES LTD | 13082192 | S36 | ≈3.4 km |
| PENNINE GAS LTD | 13432833 | S36 | ≈3.7 km |
Company record
| Field | Value |
|---|---|
| Company number | 08794317 |
| Name | G J COOK LIMITED |
| Status | Active |
| Incorporated | 28 Nov 2013 |
| SIC | 43220 · plumbing, heat and air-conditioning installation |
| Registered office postcode | S36 7GF |
| Outcode | S36 |
| 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 08794317 |
Companies House record: G J COOK LIMITED, company 08794317, 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.