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ALL 4 GAS LTD: plumbing, heating and air-conditioning company in Welwyn Garden City
ALL 4 GAS LTD is an active limited company (no. 10860883), incorporated in 2017, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in AL8 (Welwyn Garden City), and 296 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
296 similar companies within 10 km. Welwyn Garden City
What homes around AL8 need
In AL8 last summer (2026) there were ≈11 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).
69% of sampled postcodes in AL8 sit in a conservation area (on-record, 422 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 |
|---|---|---|---|
| PIPESTAR PLUMBING LTD | 15665337 | AL8 | ≈0.7 km |
| LOUI PLUMBING SERVICES LTD | 17123738 | AL7 | ≈0.9 km |
| S & R PLUMBING AND HEATING LIMITED | 06189230 | AL8 | ≈1.1 km |
| THE HERTFORDSHIRE BOILER COMPANY LTD | 11152809 | AL7 | ≈1.2 km |
| VT FLOW PLUMBING & HEATING LTD | 17098804 | AL7 | ≈1.4 km |
| B G SWEENEY LTD | 06846100 | AL8 | ≈1.5 km |
| BOSS PLUMBING SERVICES LTD | 16379392 | AL7 | ≈1.5 km |
| ECO SMART INSTALLATIONS LIMITED | 14478048 | AL7 | ≈1.6 km |
| BAKSA LIMITED | 07732658 | AL7 | ≈1.6 km |
| EASTSIDE GAS (WELWYN) LTD | 10422604 | AL7 | ≈1.6 km |
Company record
| Field | Value |
|---|---|
| Company number | 10860883 |
| Name | ALL 4 GAS LTD |
| Status | Active |
| Incorporated | 11 Jul 2017 |
| SIC | 43220 · plumbing, heat and air-conditioning installation |
| Registered office postcode | AL8 6XN |
| Outcode | AL8 |
| 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 10860883 |
Companies House record: ALL 4 GAS LTD, company 10860883, 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.