Darlington: plumbing, heating and air-conditioning companies
Darlington has 81 plumbing, heating and air-conditioning companies (SIC 43220) and 136 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 DL1, summer 2026 had ≈0 nights above 18 °C there (below the 1991–2020 average of 0.3).
SIC 43220
Open a company
A. J. CLACHER LIMITED, incorporated 1979, status Active.
Plumbing, heating and air-conditioning companies
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| ALUX ELECTRICAL LIMITED | 43210 · electrical installation | 2021 | Active | DL1 |
| DS ELECTRICAL SOLUTIONS LTD | 43210 · electrical installation | 2024 | Active | DL1 |
| EVRY BUILDING SOLUTIONS LIMITED | 43290 · other construction installation | 2025 | Active | DL1 |
| GEO BLOC LTD | 43290 · other construction installation; 22290; 42990 | 2019 | Active | DL1 |
| L&C CONSTRUCTION LIMITED | 43290 · other construction installation | 2021 | Active | DL1 |
| ML DRIVEWAYS-PATIOS & GROUNDWORKS LTD | 43290 · other construction installation | 2023 | Active | DL1 |
| NEXT LEVEL CONSTRUCTION SERVICES LIMITED | 43290 · other construction installation; 41201; 41202; 96090 | 2024 | Active | DL1 |
| SURVEY AND INSTALLATION LIMITED | 43290 · other construction installation | 2023 | Active | DL1 |
| TES TAYLOR ELECTRICAL SOLUTIONS LTD | 43210 · electrical installation | 2021 | Active | DL1 |
| SSP ELECTRICAL LIMITED | 43210 · electrical installation | 2023 | Active | DL1 |
| LYTESTREAM ELECTRICAL ENGINEERS & CONTRACTORS LIMITED | 43210 · electrical installation | 1993 | Active | DL1 |
| HARVEY ELECTRICAL SERVICES (NORTHERN) LIMITED | 43210 · electrical installation | 2012 | Active | DL1 |
| CLOUGH ELECTRICAL CONTRACTORS LTD | 43210 · electrical installation | 2021 | Active | DL1 |
| ECO POWER ACADEMY LIMITED | 43210 · electrical installation | 2024 | Active | DL1 |
| ECO POWER ENERGY LIMITED | 43210 · electrical installation | 2013 | Active | DL1 |
| ECO POWER HYDROGEN LIMITED | 43210 · electrical installation | 2024 | Active | DL1 |
| ECO POWER INFRASTRUCTURE LIMITED | 43210 · electrical installation | 2024 | Active | DL1 |
| ECO POWER SOLAR LIMITED | 43210 · electrical installation | 2024 | Active | DL1 |
| KEY 4 SERVICES LIMITED | 43290 · other construction installation | 2024 | Active | DL1 |
| LAVELEC ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2021 | Active | DL1 |
| TT KITCHEN INSTALLATIONS LIMITED | 43290 · other construction installation | 2016 | Active | DL1 |
| WALTON ELECTRICAL SOLUTIONS LIMITED | 43210 · electrical installation | 2025 | Active | DL1 |
| MARPLE'S PROPERTY LIMITED | 43290 · other construction installation | 2025 | Active | DL1 |
| ELITE FENCING & PROPERTY MAINTENANCE LTD | 43290 · other construction installation | 2026 | Active | DL1 |
| PROVAULT CONSTRUCTION SERVICES LTD | 43290 · other construction installation | 2026 | Active | DL1 |
| CM SITE SERVICES LTD | 43290 · other construction installation | 2023 | Active | DL3 |
| DORSERVE LIMITED | 43290 · other construction installation | 2008 | Active | DL3 |
| DP ELECTRICAL (NORTH EAST) LIMITED | 43210 · electrical installation | 2026 | Active | DL3 |
| ALWYN DOORS LTD | 43290 · other construction installation | 2023 | Active | DL3 |
| OEL TECHNICAL SERVICES LIMITED | 43210 · electrical installation | 2021 | Active | DL3 |
| PAUL TOWNEND LTD | 43290 · other construction installation | 2026 | Active | DL3 |
| TALON ELECTRICAL NORTH EAST LIMITED | 43210 · electrical installation | 2010 | Active | DL3 |
| VISION ELECTRICAL & COMMISSIONING LIMITED | 43210 · electrical installation | 2015 | Active | DL3 |
| APEX CONNECT CCTV LTD | 43210 · electrical installation; 80200 | 2026 | Active | DL1 |
| DARLINGTON SOLAR LTD | 43210 · electrical installation | 2024 | Active | DL1 |
| WELL WIRED ELECTRICAL LTD | 43210 · electrical installation | 2014 | Active | DL1 |
| S.E.M. ELECTRICAL LIMITED | 43210 · electrical installation | 2004 | Active | DL1 |
| CDM (NE) LTD | 43210 · electrical installation; 71122 | 2008 | Active | DL3 |
| FWM ELECTRICAL LTD | 43210 · electrical installation | 2023 | Active | DL3 |
| KVAR ENGINEERING SERVICES LIMITED | 43210 · electrical installation | 2007 | Active | DL3 |
| DASH ELECTRICAL LTD | 43210 · electrical installation | 2024 | Active | DL3 |
| STOREFIT (UK) LIMITED | 43290 · other construction installation | 2015 | Active | DL3 |
| WIRED ELECTRICAL NORTH EAST LTD | 43210 · electrical installation | 2023 | Active | DL1 |
| ARENDINE LIMITED | 43210 · electrical installation | 2026 | Active | DL3 |
| PAUL WILSON CONSTRUCTION LIMITED | 43290 · other construction installation | 2023 | Active | DL1 |
| J WELCH LTD | 43290 · other construction installation | 2021 | Active | DL1 |
| AMCCORMICK ELECTRICAL LTD | 43210 · electrical installation | 2025 | Active | DL1 |
| TRADE VALLEY VAE LTD | 43290 · other construction installation | 2022 | Active | DL1 |
| CLEAN ENERGY ENGINEERING LTD | 43210 · electrical installation; 33140; 71122; 71129 | 2018 | Active | DL1 |
| TRANSELECTRIC LTD | 43210 · electrical installation; 71129 | 2023 | Active | DL1 |
| OPDOC LIMITED | 43290 · other construction installation | 2016 | Active | DL3 |
| MCMAIN ELECTRICAL LIMITED | 43210 · electrical installation | 2009 | Active | DL3 |
| ETERNAL ENERGY LIMITED | 43210 · electrical installation | 2011 | Active | DL3 |
| REGAL STRUCTURES LTD | 43290 · other construction installation | 2017 | Active | DL1 |
| EVOLVE SYSTEMS LIMITED | 43210 · electrical installation | 2012 | Active | DL1 |
| LC13 GROUNDWORKS LTD | 43290 · other construction installation | 2022 | Active | DL1 |
| AVANT DEVELOPMENTS NE LTD | 43290 · other construction installation; 43910 | 2024 | Active | DL1 |
| Z ELECTRICIANS LIMITED | 43210 · electrical installation | 2017 | Active | DL1 |
| KYLE BLUNDELL LTD | 43210 · electrical installation | 2026 | Active | DL3 |
| DH ELECTRICAL & MECHANICAL LTD | 43210 · electrical installation | 2017 | Active | DL3 |
| UP NORTH ELECTRICAL SOLUTIONS LTD | 43210 · electrical installation | 2019 | Active | DL1 |
| D.S MCLAUGHLIN LIMITED | 43210 · electrical installation | 2013 | Active | DL3 |
| WHITFIELD ELECTRICAL CONTRACTORS LIMITED | 43210 · electrical installation | 2022 | Active | DL3 |
| BORTHWICK CONSTRUCTION LIMITED | 43290 · other construction installation | 2019 | Active | DL3 |
| PREMIER SOLUTIONS INTERIOR SPECIALISTS LTD | 43290 · other construction installation | 2021 | Active | DL3 |
| THE LUXURY WOOD FLOOR COMPANY LTD | 43290 · other construction installation | 2025 | Active | DL3 |
| ELECTROSECURE LTD | 43210 · electrical installation | 2023 | Active | DL1 |
| REGENT MAINTENANCE LIMITED | 43290 · other construction installation | 2000 | Active | DL1 |
| MANN ELECTROTECHNICAL LTD | 43210 · electrical installation | 2024 | Active | DL3 |
| SUNTRACK ENERGY SOLUTIONS LTD | 43210 · electrical installation | 2025 | Active | DL3 |
| X-CEL ELECTRICAL & PROPERTY SOLUTIONS LTD | 43210 · electrical installation | 2012 | Active | DL1 |
| ELECTRONIC SECURITY SOLUTIONS LIMITED | 43290 · other construction installation | 2000 | Active | DL1 |
| CHRIS BANKS WINDOWS LTD | 43290 · other construction installation | 2003 | Active | DL1 |
| WILLANS JOINERY LTD | 43290 · other construction installation; 43320; 43330; 43390 | 2018 | Active | DL1 |
| NJS LIMITED | 43210 · electrical installation | 2006 | Active | DL3 |
| JA WORKING AT HEIGHT LTD | 43290 · other construction installation; 43999 | 2023 | Active | DL1 |
| FABFANS+ LTD | 43290 · other construction installation | 2025 | Active | DL1 |
| TAYMER BOILERS AND BATHROOMS LTD | 43290 · other construction installation | 2024 | Active | DL1 |
| RENNYCO LIMITED | 43290 · other construction installation; 43999 | 1986 | Active | DL3 |
| BAYDALE CONTROL SYSTEMS LIMITED | 43210 · electrical installation; 80200; 84250; 96090 | 1999 | Active | DL1 |
| DMH ELECTRICAL AND RENEWABLE LTD | 43210 · electrical installation | 2022 | Active | DL1 |
| SHEERS LIMITED | 43210 · electrical installation; 43290 · other construction installation; 42910 | 1978 | Active | DL1 |
| EDGERLEY ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2019 | Active | DL3 |
| M H GORMAN ELECTRICAL CONTRACTORS LIMITED | 43210 · electrical installation | 2019 | Active | DL3 |
| F & E TRADE SERVICES LIMITED | 43290 · other construction installation | 2025 | Active | DL2 |
| LV CABLE SOLUTIONS LTD | 43210 · electrical installation | 2022 | Active | DL2 |
| EVOLUX LIMITED | 43210 · electrical installation; 41100; 70229 | 2016 | Active | DL2 |
| DAVE'S ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2020 | Active | DL1 |
| WISE ELECTRICAL SOLUTIONS LTD | 43210 · electrical installation | 2023 | Active | DL1 |
| D B SITE SERVICES LIMITED | 43290 · other construction installation | 1998 | Active | DL2 |
| 3 WIRE LIMITED | 43210 · electrical installation | 2007 | Active | DL2 |
| GTI INSTALLATION LTD | 43290 · other construction installation | 2023 | Active | DL2 |
| MWB SERVICES LTD | 43290 · other construction installation | 2022 | Active | DL2 |
| ENDEAVOUR ELECTRICAL ENGINEERING LTD | 43210 · electrical installation | 2026 | Active | DL2 |
| HGT BUILDING & REFURBISHMENT LTD | 43290 · other construction installation; 41100; 41201; 41202 | 2024 | Active | DL1 |
| LINESIDE FENCING NE LTD | 43290 · other construction installation | 2021 | Active | DL1 |
| SELECT ELECTRICAL NE LTD | 43210 · electrical installation | 2021 | Active | DL2 |
| STEPHEN OLIVER LIVING LTD | 43290 · other construction installation | 2025 | Active | DL2 |
| SECURENET ELECTRICAL LTD | 43210 · electrical installation | 2024 | Active | DL2 |
| BROOKES HV SOLUTIONS LIMITED | 43210 · electrical installation | 2026 | Active | DL2 |
Heat and planning around Darlington
In Darlington last summer (2026) there were ≈0 nights that stayed above 18 °C — below the 1991–2020 average of 0.3 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities). The figure is the household-weighted mean of 4 postcode districts where these offices are registered.
13% of sampled postcodes in Darlington sit in a conservation area (4,204 live postcodes across 4 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.