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JNH BUILD LTD: plumbing, heating and air-conditioning company in Enfield
JNH BUILD LTD is an active limited company (no. 17036756), incorporated in 2026, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in EN3 (Enfield), and 1,285 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
1,285 similar companies within 10 km. Enfield
What homes around EN3 need
In EN3 last summer (2026) there were ≈11 nights that stayed above 18 °C — 7 times the 1991–2020 average of 1.6 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
1% of sampled postcodes in EN3 sit in a conservation area (on-record, 1,003 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 |
|---|---|---|---|
| HARDSTONE HEATING LTD | 15740360 | EN3 | under 0.1 km |
| MC PLUMBING LONDON LTD | 17218703 | EN3 | ≈0.2 km |
| LINDI PLUMBING & HIU SERVICES LTD | 17180962 | EN3 | ≈0.2 km |
| UKCOOLING LIMITED | 12017063 | EN3 | ≈0.2 km |
| NGU TECH LIMITED | 15223739 | EN3 | ≈0.2 km |
| COLAK MAINTENANCE LTD | 13547959 | EN3 | ≈0.3 km |
| R&D PLUMBING LTD | 13711249 | EN3 | ≈0.3 km |
| BLP PLUMBING GROUP LTD | 16401609 | EN3 | ≈0.4 km |
| UNIQUE UK SERVICES LIMITED | 10402757 | EN3 | ≈0.5 km |
| HBL GAS LTD | 11689817 | EN3 | ≈0.6 km |
Company record
| Field | Value |
|---|---|
| Company number | 17036756 |
| Name | JNH BUILD LTD |
| Status | Active |
| Incorporated | 17 Feb 2026 |
| SIC | 43220 · plumbing, heat and air-conditioning installation; 43210 · electrical installation; 43290 · other construction installation; 43999 |
| Registered office postcode | EN3 5ST |
| Outcode | EN3 |
| 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 17036756 |
Companies House record: JNH BUILD LTD, company 17036756, 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.