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NJM LONDON LTD: plumbing, heating and air-conditioning company in Chesterfield
NJM LONDON LTD is an active limited company (no. 11168464), incorporated in 2018, registered for plumbing, heating and air-conditioning installation (SIC 43220), with its registered office in S40 (Chesterfield), and 147 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
147 similar companies within 10 km. Chesterfield
What homes around S40 need
In S40 last summer (2026) there were ≈3 nights that stayed above 18 °C — 15 times the 1991–2020 average of 0.2 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
0% of sampled postcodes in S40 sit in a conservation area (no-record-uncertain, 1,080 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 |
|---|---|---|---|
| J B KING & SON LTD | 05093935 | S42 | ≈0.8 km |
| AQUA PLUMBING & HEATING SOLUTIONS LTD | 11997061 | S42 | ≈0.9 km |
| J A OGDEN PLUMBING AND HEATING LIMITED | 08287552 | S41 | ≈1.1 km |
| METERMEDICS LIMITED | 09514453 | S41 | ≈1.2 km |
| J G PLUMBING HEATING LTD | 16440432 | S41 | ≈1.3 km |
| EDWARD SERRELL PLUMBING & HEATING LTD | 07907412 | S41 | ≈1.3 km |
| PROSERVE HEATING LTD | 16335381 | S40 | ≈1.4 km |
| BLUEFLAME HEATPLAN LIMITED | 04319201 | S40 | ≈1.5 km |
| DAV'S PLUMBING AND HEATING LTD | 16070566 | S41 | ≈1.8 km |
| ABA MECHANICAL LIMITED | 10517102 | S40 | ≈2.0 km |
Company record
| Field | Value |
|---|---|
| Company number | 11168464 |
| Name | NJM LONDON LTD |
| Status | Active |
| Incorporated | 24 Jan 2018 |
| SIC | 43220 · plumbing, heat and air-conditioning installation; 43290 · other construction installation |
| Registered office postcode | S40 4QD |
| Outcode | S40 |
| 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 11168464 |
Companies House record: NJM LONDON LTD, company 11168464, 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.