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D H PLUMBING AND MECHANICAL LTD: plumbing, heating and air-conditioning company in Havant
D H PLUMBING AND MECHANICAL LTD is an active limited company (no. 11623791), incorporated in 2018, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in PO9 (Havant), and 407 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
407 similar companies within 10 km. Havant
What homes around PO9 need
In PO9 last summer (2026) there were ≈27 nights that stayed above 18 °C — 9 times the 1991–2020 average of 2.9 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
10% of sampled postcodes in PO9 sit in a conservation area (on-record, 1,218 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 |
|---|---|---|---|
| LEAK TRACE PLUMBING SOLUTIONS LTD | 16601330 | PO9 | ≈1.0 km |
| AQUEOUS INSTALLATIONS LTD | 14465726 | PO9 | ≈1.1 km |
| JB PLUMBING HEATING & BATHROOMS LTD | 07250648 | PO7 | ≈1.2 km |
| ELITE PLUMBING HEATING SOLUTIONS LTD | 16013777 | PO9 | ≈1.3 km |
| URBAN GAS PLUMBING & HEATING LTD | 16783088 | PO7 | ≈1.5 km |
| MERIDIAN GAS SERVICES LIMITED | 13300477 | PO9 | ≈1.5 km |
| BLIMP PLUMBING LTD | 16364409 | PO9 | ≈1.6 km |
| BROWNS HEATING AND PLUMBING SERVICES LTD | 12717740 | PO7 | ≈1.7 km |
| DJP PLUMBING AND HEATING SOLUTIONS LTD | 16362467 | PO8 | ≈1.8 km |
| BUGAS SERVICES LIMITED | 13088849 | PO7 | ≈1.9 km |
Company record
| Field | Value |
|---|---|
| Company number | 11623791 |
| Name | D H PLUMBING AND MECHANICAL LTD |
| Status | Active |
| Incorporated | 15 Oct 2018 |
| SIC | 43220 · plumbing, heat and air-conditioning installation |
| Registered office postcode | PO9 4HG |
| Outcode | PO9 |
| 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 11623791 |
Companies House record: D H PLUMBING AND MECHANICAL LTD, company 11623791, 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.