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RJM GAS LIMITED: plumbing, heating and air-conditioning company in Southend-on-Sea
RJM GAS LIMITED is an active limited company (no. 11840160), incorporated in 2019, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in SS3 (Southend-on-Sea), and 247 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
247 similar companies within 10 km. Southend-on-Sea
What homes around SS3 need
In SS3 last summer (2026) there were ≈27 nights that stayed above 18 °C — 7 times the 1991–2020 average of 4.1 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
7% of sampled postcodes in SS3 sit in a conservation area (on-record, 608 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 |
|---|---|---|---|
| GASTEC SERVICES LIMITED | 03137051 | SS3 | under 0.1 km |
| RUSHTON SERVICES LTD | 12405552 | SS3 | ≈0.4 km |
| GROUP GILBEY LTD | 16680978 | SS3 | ≈0.5 km |
| NORD AIR CONDITIONING LTD | 17393375 | SS3 | ≈0.6 km |
| WGB MECHANICAL LTD | 14776320 | SS3 | ≈0.9 km |
| SDM DUCTWORK LIMITED | 12686274 | SS3 | ≈1.3 km |
| ABSOLUTELY PLUMBING LIMITED | 04991722 | SS3 | ≈1.3 km |
| BOSS HEATING & GAS LTD | 05868047 | SS3 | ≈1.4 km |
| TAMBA HEATING&GAS SOLUTIONS LTD | 16443507 | SS3 | ≈1.5 km |
| LOWDEN PLUMBING AND HEATING LTD | 11016889 | SS3 | ≈1.7 km |
Company record
| Field | Value |
|---|---|
| Company number | 11840160 |
| Name | RJM GAS LIMITED |
| Status | Active |
| Incorporated | 21 Feb 2019 |
| SIC | 43220 · plumbing, heat and air-conditioning installation |
| Registered office postcode | SS3 9UR |
| Outcode | SS3 |
| 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 11840160 |
Companies House record: RJM GAS LIMITED, company 11840160, 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.