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P O'CALLAGHAN SERVICES LIMITED: plumbing, heating and air-conditioning company in Sidcup
P O'CALLAGHAN SERVICES LIMITED is an active limited company (no. 03565718), incorporated in 1998, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in DA14 (Sidcup), and 1,248 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
1,248 similar companies within 10 km. Sidcup
What homes around DA14 need
In DA14 last summer (2026) there were ≈10 nights that stayed above 18 °C — 5 times the 1991–2020 average of 1.9 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
5% of sampled postcodes in DA14 sit in a conservation area (on-record, 510 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 |
|---|---|---|---|
| ASW PLUMBING LIMITED | 11805176 | DA14 | ≈0.2 km |
| STAR BOILERS & BATHROOMS LTD | 15913163 | DA14 | ≈0.5 km |
| TVT PLUMBING & HEATING LTD | 13287552 | DA14 | ≈0.5 km |
| PCB MECHANICAL & ELECTRICAL CONTRACTORS LTD | 16478733 | DA14 | ≈0.6 km |
| JAMES WRIGHT HEATING SERVICES LTD | 14429592 | DA14 | ≈0.6 km |
| RAYWIN SERVICES LTD | 12708026 | DA14 | ≈0.6 km |
| MODGAS LTD | 11509099 | DA14 | ≈0.7 km |
| AIM MECHANICAL SERVICES LIMITED | 02682442 | DA14 | ≈0.7 km |
| HEAT COVER LIMITED | 02925173 | DA14 | ≈0.7 km |
| PLUMBING ADVISORY CONTRACTS LIMITED | 04962788 | DA14 | ≈0.7 km |
Company record
| Field | Value |
|---|---|
| Company number | 03565718 |
| Name | P O'CALLAGHAN SERVICES LIMITED |
| Status | Active |
| Incorporated | 18 May 1998 |
| SIC | 43220 · plumbing, heat and air-conditioning installation |
| Registered office postcode | DA14 4LQ |
| Outcode | DA14 |
| 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 03565718 |
Companies House record: P O'CALLAGHAN SERVICES LIMITED, company 03565718, 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.