Home / Installers / Hemel Hempstead
J A GAS & PLUMBING SERVICES LIMITED: plumbing, heating and air-conditioning company in Hemel Hempstead
J A GAS & PLUMBING SERVICES LIMITED is an active limited company (no. 04412896), incorporated in 2002, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in HP3 (Hemel Hempstead), and 347 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
347 similar companies within 10 km. Hemel Hempstead
What homes around HP3 need
In HP3 last summer (2026) there were ≈10 nights that stayed above 18 °C — 8 times the 1991–2020 average of 1.3 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
1% of sampled postcodes in HP3 sit in a conservation area (on-record, 761 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 |
|---|---|---|---|
| PLUMBLINE BUILDING SERVICES LIMITED | 06815718 | HP3 | ≈0.1 km |
| DACORUM PLUMBING LTD | 17063970 | HP3 | ≈0.3 km |
| EM BUILDING & MAINTENANCE LTD | 12196593 | HP3 | ≈0.4 km |
| IGAS HEATING LIMITED | 10269907 | HP3 | ≈0.5 km |
| HOT AND COLD SOLUTIONS LIMITED | 05882454 | HP3 | ≈0.6 km |
| PLUMB HEATING LTD | 10870055 | HP3 | ≈0.6 km |
| DEY MECHANICAL SERVICES LTD | 10230076 | HP3 | ≈0.7 km |
| M N R PLUMBING AND HEATING LTD | 15718139 | HP3 | ≈0.7 km |
| ASM CONSTRUCTION LTD | 12219280 | HP3 | ≈0.7 km |
| ANDREEV PLUMBING LIMITED | 10160323 | HP3 | ≈0.7 km |
Company record
| Field | Value |
|---|---|
| Company number | 04412896 |
| Name | J A GAS & PLUMBING SERVICES LIMITED |
| Status | Active |
| Incorporated | 10 Apr 2002 |
| SIC | 43220 · plumbing, heat and air-conditioning installation |
| Registered office postcode | HP3 9NW |
| Outcode | HP3 |
| 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 04412896 |
Companies House record: J A GAS & PLUMBING SERVICES LIMITED, company 04412896, 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.