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ARNOLD JAMES (ST. ALBANS) LIMITED: plumbing, heating and air-conditioning company in St Albans
ARNOLD JAMES (ST. ALBANS) LIMITED is an active limited company (no. 00610474), incorporated in 1958, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in AL4 (St Albans), and 330 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
330 similar companies within 10 km. St Albans
What homes around AL4 need
In AL4 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).
8% of sampled postcodes in AL4 sit in a conservation area (on-record, 787 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 |
|---|---|---|---|
| T F INSTALLATIONS LTD | 07208342 | AL4 | under 0.1 km |
| SIMPLY BATHROOMS D.A. LIMITED | 10354158 | AL3 | ≈0.4 km |
| C GODFREY PLUMBING SERVICES LTD | 07429757 | AL3 | ≈0.4 km |
| R A EVANS PLUMBING & HEATING LIMITED | 09522398 | AL3 | ≈0.4 km |
| KEY PH LTD | 11777790 | AL3 | ≈0.4 km |
| MHVAC SERVICES LTD | 13304048 | AL3 | ≈0.4 km |
| FAIRFIELD RENEWABLE HEATING SOLUTIONS LTD | 15004131 | AL3 | ≈0.4 km |
| BLUE FLAG COOLING SERVICES LIMITED | 07042706 | AL3 | ≈0.4 km |
| AGW PLUMBING & HEATING LIMITED | 09836412 | AL3 | ≈0.4 km |
| A.D PLUMBING & DRAINAGE LTD | 14505483 | AL3 | ≈0.4 km |
Company record
| Field | Value |
|---|---|
| Company number | 00610474 |
| Name | ARNOLD JAMES (ST. ALBANS) LIMITED |
| Status | Active |
| Incorporated | 29 Aug 1958 |
| SIC | 43220 · plumbing, heat and air-conditioning installation |
| Registered office postcode | AL4 9QT |
| Outcode | AL4 |
| 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 00610474 |
Companies House record: ARNOLD JAMES (ST. ALBANS) LIMITED, company 00610474, 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.