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THREE CROWNS MECHANICAL SERVICES LIMITED: plumbing, heating and air-conditioning company in Great Yarmouth
THREE CROWNS MECHANICAL SERVICES LIMITED is an active limited company (no. 10305511), incorporated in 2016, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in NR30 (Great Yarmouth), and 52 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
52 similar companies within 10 km. Great Yarmouth
What homes around NR30 need
In NR30 last summer (2026) there were ≈24 nights that stayed above 18 °C — 4 times the 1991–2020 average of 5.5 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
27% of sampled postcodes in NR30 sit in a conservation area (on-record, 971 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 |
|---|---|---|---|
| ROCK P&H SERVICES LTD | 11155554 | NR30 | ≈0.2 km |
| ANGLIA HEATING & GAS LIMITED | 11842504 | NR30 | ≈0.4 km |
| GREEN-DUCK (ANGLIA) LTD | 10962553 | NR30 | ≈1.1 km |
| GAS SERVICING LTD | 11059010 | NR30 | ≈1.1 km |
| CMC (EAST ANGLIA) LIMITED | 10570328 | NR30 | ≈1.2 km |
| J&A BUILDING CONTRACTORS LTD | 11859078 | NR31 | ≈1.4 km |
| MB COMPLETE PLUMBING & HEATING SERVICES LTD | 12811152 | NR31 | ≈1.5 km |
| EVANS & JOHNS HEATING AND PLUMBING LIMITED | 04668079 | NR31 | ≈1.9 km |
| JAX PLUMBING AND HEATING LIMITED | 12531886 | NR31 | ≈1.9 km |
| ZERO CARBON HEATING LIMITED | 14051937 | NR31 | ≈1.9 km |
Company record
| Field | Value |
|---|---|
| Company number | 10305511 |
| Name | THREE CROWNS MECHANICAL SERVICES LIMITED |
| Status | Active |
| Incorporated | 1 Aug 2016 |
| SIC | 43220 · plumbing, heat and air-conditioning installation |
| Registered office postcode | NR30 3BH |
| Outcode | NR30 |
| 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 10305511 |
Companies House record: THREE CROWNS MECHANICAL SERVICES LIMITED, company 10305511, 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.