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NN5: plumbing, heating and air-conditioning companies in Northampton
NN5 (Northampton) has 38 plumbing, heating and air-conditioning companies registered here (SIC 43220) and 67 electrical and other installation companies (Companies House, 1 Sep 2026); 0 are MCS-certified for air-to-air yet. If the summer is the question, NN5 had ≈6 nights above 18 °C in 2026 (6 times the 1991–2020 average of 1.0).
NN5
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A. D. LEGGETT LIMITED, incorporated 2024, status Active.
Plumbing, heating and air-conditioning companies
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| 1ST SMART SYSTEMS LTD | 43210 · electrical installation | 2025 | Active | NN5 |
| 3S NORTHAMPTON LIMITED | 43210 · electrical installation | 2015 | Active | NN5 |
| A & N FIREPLACE SERVICES LIMITED | 43290 · other construction installation | 2007 | Active | NN5 |
| A MARKS ELECTRICAL LIMITED | 43210 · electrical installation | 2021 | Active | NN5 |
| ACDC ENER-G LTD | 43210 · electrical installation | 2023 | Active | NN5 |
| AZ FIRE PROTECTION LTD | 43210 · electrical installation; 80100; 80200; 84250 | 2023 | Active | NN5 |
| BARFORD ELECTRICAL LIMITED | 43210 · electrical installation | 2022 | Active | NN5 |
| BC-ELECTRICAL LTD | 43210 · electrical installation | 2026 | Active | NN5 |
| BCK CONTRACTING LIMITED | 43290 · other construction installation | 2005 | Active | NN5 |
| BECKENHAM WINDOWS (PVCU) LIMITED | 43290 · other construction installation | 2005 | Liquidation | NN5 |
| BEES HOLIDAYS LTD | 43210 · electrical installation | 2018 | Active | NN5 |
| BILLINGHAM LIFT SERVICES LTD | 43290 · other construction installation | 2024 | Active | NN5 |
| BOWERS ELECTRICAL ENGINEERING SERVICES LIMITED | 43210 · electrical installation | 2014 | Active | NN5 |
| BROSCO SERVICES LIMITED | 43290 · other construction installation | 2025 | Active | NN5 |
| BULL GROUNDWORKS LTD | 43290 · other construction installation | 2025 | Active | NN5 |
| C & C HOME IMPROVEMENTS LIMITED | 43290 · other construction installation; 46740 | 2007 | Active | NN5 |
| CASTLE CONSTRUCTION GROUP LTD | 43290 · other construction installation; 41201; 41202 | 2025 | Active | NN5 |
| CONSTRUCTION IS LTD | 43290 · other construction installation; 41201; 41202; 43999 | 2025 | Active | NN5 |
| D R CARPENTRY AND KITCHENS LTD | 43290 · other construction installation; 43320 | 2024 | Active | NN5 |
| DMBR LIMITED | 43290 · other construction installation | 2015 | Active | NN5 |
| ETI ELECTRICAL LTD | 43210 · electrical installation; 43320 | 2022 | Active | NN5 |
| FIBRELEC LTD. | 43210 · electrical installation | 2005 | Active | NN5 |
| G M LAWRENCE ELECTRICAL LTD | 43210 · electrical installation | 2005 | Active | NN5 |
| GLG BLINDS LTD | 43290 · other construction installation | 2017 | Active | NN5 |
| HFFELIX LIMITED | 43290 · other construction installation; 45112; 56103 | 2024 | Active - Proposal to Strike off | NN5 |
| I T SAFETY CONSTRUCTION LIMITED | 43290 · other construction installation; 41201; 41202 | 2026 | Active | NN5 |
| IMH ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2007 | Active | NN5 |
| INPULZE ELECTRICAL LTD | 43210 · electrical installation | 2019 | Active | NN5 |
| INPULZE EXLINE LTD | 43210 · electrical installation | 2023 | Active | NN5 |
| INPULZE GROUP LTD | 43210 · electrical installation | 2023 | Active | NN5 |
| JONATHAN BRUTNALL & CO. LTD | 43210 · electrical installation | 2002 | Liquidation | NN5 |
| LCH ELECTRICAL SERVICES LTD | 43210 · electrical installation; 43390 | 2023 | Active | NN5 |
| LME SOLUTIONS LTD | 43290 · other construction installation; 43999 | 2025 | Active | NN5 |
| MARIAN & FIBER OPTIC LTD | 43210 · electrical installation | 2023 | Active | NN5 |
| MAXTRI LTD | 43290 · other construction installation | 2025 | Active | NN5 |
| MIDLANDS JOINTING SERVICES LTD | 43210 · electrical installation | 2026 | Active | NN5 |
| MILLER MC CARRON LTD | 43290 · other construction installation; 43999 | 2020 | Active | NN5 |
| MRD INSTALLATIONS LTD | 43290 · other construction installation | 2015 | Active | NN5 |
| NB ENERGY HERO LTD | 43210 · electrical installation | 2025 | Active | NN5 |
| NORTHANTS JOINTING SERVICES LTD | 43210 · electrical installation | 2022 | Active | NN5 |
| NXT GEN LIFT SERVICES LTD | 43290 · other construction installation | 2018 | Active - Proposal to Strike off | NN5 |
| PRECISION ELECTRIC CONTRACTORS & ENGINEERS LTD. | 43210 · electrical installation | 2010 | Liquidation | NN5 |
| QUANTA ELECTRICAL LTD | 43210 · electrical installation | 2020 | Active | NN5 |
| R ELECTRICAL INSTALLATIONS LTD | 43210 · electrical installation | 2026 | Active | NN5 |
| RHINO LANDSCAPING LIMITED | 43290 · other construction installation | 2020 | Active | NN5 |
| RHODES ROOFING & ENERGY SOLUTIONS LIMITED | 43210 · electrical installation; 43910; 43999 | 2023 | Active | NN5 |
| RI MANAGEMENT SERVICES LIMITED | 43290 · other construction installation | 2021 | Active | NN5 |
| RICKARD INTERIORS (GLOUCESTER) LIMITED | 43290 · other construction installation | 2018 | Active | NN5 |
| ROC RIDGE LIMITED | 43290 · other construction installation | 2025 | Active | NN5 |
| S REYNOLDS ELECTRICAL CONTRACTORS LTD | 43210 · electrical installation | 2025 | Active | NN5 |
| S. & J. GRAVESON LIMITED | 43290 · other construction installation | 1982 | Liquidation | NN5 |
| S.E.C. ELECTRICAL LIMITED | 43210 · electrical installation | 1955 | Active | NN5 |
| SAINTS ELECTRICAL & SECURITY LTD | 43210 · electrical installation | 2011 | Active | NN5 |
| SEC ENERGY LTD | 43210 · electrical installation | 2024 | Active | NN5 |
| SHORT ELECTRICAL LTD | 43210 · electrical installation | 2011 | Active | NN5 |
| SIGNATURE SPACES PROPERTY DEVELOPERS LTD | 43290 · other construction installation | 2025 | Active | NN5 |
| SMART ELECTRICAL NORTHANTS LTD | 43210 · electrical installation; 82990 | 2022 | Active | NN5 |
| SOLARCORE ENERGY LTD | 43210 · electrical installation | 2026 | Active | NN5 |
| SOSTAC & CO FACADES LTD | 43290 · other construction installation | 2021 | Active | NN5 |
| STORM SOLUTIONS LTD | 43290 · other construction installation; 43910 | 2022 | Active | NN5 |
| T.K. CABLE LIMITED | 43290 · other construction installation | 2003 | Active | NN5 |
| TOFAN CLADDING SPECIALISTS LIMITED | 43290 · other construction installation | 2017 | Active | NN5 |
| TOP KITCHENS&BATH INSTALLING LTD | 43210 · electrical installation; 41202 | 2025 | Active | NN5 |
| VISIONARY LIVING LIMITED | 43290 · other construction installation | 2014 | Active | NN5 |
| VOLTSPARK LTD | 43210 · electrical installation | 2026 | Active | NN5 |
| VSLELECTRICAL LTD | 43210 · electrical installation | 2021 | Active | NN5 |
| X3 ELECTRICAL LTD | 43210 · electrical installation | 2025 | Active | NN5 |
What homes around NN5 need
In NN5 last summer (2026) there were ≈6 nights that stayed above 18 °C — 6 times the 1991–2020 average of 1.0 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
5% of sampled postcodes in NN5 sit in a conservation area (on-record, 892 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).
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 for NN5, June–August, minimum at or above 18 °C, retrieved 25 Sep 2026. Conservation-area share: sampled postcode points in NN5, snapshot 25 Sep 2026.
Better than a town-wide list: these are the registered offices in NN5, with that district's hot nights and planning rule.