Northamptonshire: plumbing, heating and air-conditioning companies
Northamptonshire has 5 plumbing, heating and air-conditioning companies (SIC 43220) and 12 electrical and other installation companies registered here (Companies House, 1 Sep 2026); 0 are MCS-certified for air-to-air yet. If the office is in NN8, summer 2026 had ≈8 nights above 18 °C there (7 times the 1991–2020 average of 1.1).
SIC 43220
Open a company
K MATCHAM SERVICES LIMITED, incorporated 2006, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| R D MILLARD LIMITED | 2007 | Active | NN8 |
| R&S PLUMBING LIMITED | 2006 | Active | NN29 |
| K MATCHAM SERVICES LIMITED | 2006 | Active | NN15 |
| SUPERCOOL CENTRAL LIMITED | 2008 | Active | NN1 |
| S.P. MARKS SERVICES LTD. | 1996 | Active | NN4 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| HARTWELL ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2005 | Active | NN8 |
| QUOIN BUILDING LIMITED | 43290 · other construction installation | 2002 | Active | NN8 |
| PROXIMITY FIRE AND SECURITY LTD | 43210 · electrical installation; 74100; 80200 | 2020 | Active | NN8 |
| FALCON INNOVATIONS LIMITED | 43210 · electrical installation | 2018 | Active | NN8 |
| ACTS 9 DEVELOPMENTS LTD | 43290 · other construction installation | 2021 | Active | NN6 |
| NORTHANTS ELECTRICAL INSTALLATIONS LIMITED | 43210 · electrical installation | 2007 | Active | NN10 |
| PLAYGROUND SUPPLIES LIMITED | 43290 · other construction installation | 1997 | Active | NN16 |
| FUTURE NETWORKING LIMITED | 43210 · electrical installation | 2005 | Active | NN16 |
| FOCUSPACE LIMITED | 43210 · electrical installation | 2003 | Active | NN4 |
| RAINBOW ELECTRICAL CONTRACTING LIMITED | 43210 · electrical installation | 1977 | Active | NN4 |
| S. L. I. K. SPARKS LIMITED | 43210 · electrical installation | 2004 | Active - Proposal to Strike off | NN8 |
| GJ INTERIORS LTD | 43290 · other construction installation | 2015 | Active - Proposal to Strike off | NN18 |
Heat and planning around Northamptonshire
In Northamptonshire last summer (2026) there were ≈6.3 nights that stayed above 18 °C — 6 times the 1991–2020 average of 1.1 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities). The figure is the household-weighted mean of 9 postcode districts where these offices are registered.
11% of sampled postcodes in Northamptonshire sit in a conservation area (7,857 live postcodes across 9 districts).
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).
Companies House snapshot 1 Sep 2026, 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. Hot nights: ERA5-ARCO, June–August, minimum at or above 18 °C, household-weighted across the districts where these offices are registered, retrieved 25 Sep 2026. Conservation-area share: sampled postcode points, snapshot 25 Sep 2026. Distances are an equirectangular approximation to 0.1 km.
Better than a town directory that only lists names: each plumbing company links to its Companies House record and the local hot-night count.