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M J DOWNER LTD: plumbing, heating and air-conditioning company in Fareham
M J DOWNER LTD is an active limited company (no. 03308145), incorporated in 1997, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in PO15 (Fareham), and 360 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
360 similar companies within 10 km. Fareham
What homes around PO15 need
In PO15 last summer (2026) there were ≈19 nights that stayed above 18 °C — 7 times the 1991–2020 average of 2.7 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
2% of sampled postcodes in PO15 sit in a conservation area (on-record, 703 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 |
|---|---|---|---|
| BLUE SPARK HEATING LTD | 10880981 | SO31 | ≈0.2 km |
| GAS ELECTRICAL LTD | 06874668 | PO15 | ≈0.3 km |
| A C COOLING AND REFRIGERATION LIMITED | 08443930 | PO15 | ≈0.3 km |
| PLUMBEROO LTD. | 10187354 | PO15 | ≈0.3 km |
| MANSER HEATING & PLUMBING LTD | 16010582 | PO15 | ≈0.3 km |
| DANSTON LTD | 06475963 | SO31 | ≈0.4 km |
| MKG BUILDING SERVICES LTD | 09956054 | PO15 | ≈0.5 km |
| AMESBURY PLUMBING & HEATING LIMITED | 09890605 | SO31 | ≈0.6 km |
| JNG SERVICES LTD | 15821083 | PO14 | ≈0.6 km |
| DCG GAS SOLUTIONS LTD | 07382051 | PO14 | ≈0.7 km |
Company record
| Field | Value |
|---|---|
| Company number | 03308145 |
| Name | M J DOWNER LTD |
| Status | Active |
| Incorporated | 27 Jan 1997 |
| SIC | 43220 · plumbing, heat and air-conditioning installation |
| Registered office postcode | PO15 5SS |
| Outcode | PO15 |
| 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 03308145 |
Companies House record: M J DOWNER LTD, company 03308145, 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.