Middlesex: plumbing, heating and air-conditioning companies
Middlesex has 38 plumbing, heating and air-conditioning companies (SIC 43220) and 54 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 HA8, summer 2026 had ≈12 nights above 18 °C there (8 times the 1991–2020 average of 1.6).
SIC 43220
Open a company
A M S PLUMBING & HEATING LTD, incorporated 2005, status Active.
Plumbing, heating and air-conditioning companies
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| ND SMART BUILD LTD | 43290 · other construction installation; 41202; 43320 | 2021 | Active | HA9 |
| EVERGLADE WINDOWS LIMITED | 43290 · other construction installation; 43342; 43999 | 1989 | Active | UB6 |
| SEALWAY LIMITED | 43290 · other construction installation | 2005 | Active | HA1 |
| AMAX FIRE AND SECURITY LIMITED | 43290 · other construction installation | 2000 | Active | HA1 |
| S.M.A.C. (UK) LIMITED | 43290 · other construction installation | 2005 | Active | HA3 |
| ELEKTROFACT LIMITED | 43210 · electrical installation; 62090 | 1988 | Active | HA9 |
| GLOBE ELECTRICAL CONTRACTORS LIMITED | 43210 · electrical installation | 1967 | Active | HA9 |
| M J SEAR LIMITED | 43210 · electrical installation | 2002 | Active | HA2 |
| GRADY CONSTRUCTION LIMITED | 43290 · other construction installation | 2006 | Active | HA2 |
| RMV PAVING LTD | 43290 · other construction installation; 41201; 41202; 43999 | 2024 | Active | HA3 |
| WEST ONE SERVICES LIMITED | 43210 · electrical installation | 2002 | Active | HA4 |
| J & JAY PROPERTIES LIMITED | 43210 · electrical installation; 41100; 68100; 68209 | 2007 | Active | HA3 |
| ALL TECH COMFORTS LTD | 43210 · electrical installation; 43999; 47990; 62020 | 2016 | Active | HA7 |
| WILSON ELECTRICAL LIMITED | 43210 · electrical installation | 2005 | Active | HA2 |
| JB ELECTRICAL SERVICES GROUP LIMITED | 43210 · electrical installation | 2025 | Active | UB5 |
| N.W. PLANT HIRE LIMITED | 43290 · other construction installation | 2003 | Active | HA3 |
| MANOR CHASE CONNECTIONS LIMITED | 43210 · electrical installation | 1998 | Active | HA4 |
| SALTER ELECTRICAL LIMITED | 43210 · electrical installation | 2002 | Active | HA5 |
| SMART ELECTRICAL&DESIGN LTD | 43210 · electrical installation | 2018 | Active | HA8 |
| HALPENNY DEVELOPMENTS LIMITED | 43290 · other construction installation | 1999 | Active | HA3 |
| 5 WOOD CONSTRUCTION LIMITED | 43290 · other construction installation | 2003 | Active | HA8 |
| QUES CONSTRUCTION LIMITED | 43290 · other construction installation | 2003 | Active | HA8 |
| SHIVAN CONSTRUCTION LIMITED | 43290 · other construction installation | 2003 | Active | HA8 |
| BUILDCARE SOLUTIONS LIMITED | 43290 · other construction installation; 43390; 95240 | 2025 | Active | HA7 |
| K.K. KERAI & SONS (UK) LTD | 43290 · other construction installation | 2002 | Active | HA8 |
| ASM PROPERTY SOLUTIONS LTD | 43210 · electrical installation | 1999 | Active | UB5 |
| NATIONWIDE MAINTENANCE SERVICES LTD | 43210 · electrical installation | 2017 | Active | HA4 |
| LAMBER & SONS LIMITED | 43290 · other construction installation | 2003 | Active | UB2 |
| LOFT SPACE LIMITED | 43290 · other construction installation | 1993 | Active | HA5 |
| EUROCITY BUILDING CONTRACTORS LTD | 43210 · electrical installation | 2009 | Active | HA8 |
| T & K BRYANT LIMITED | 43210 · electrical installation; 43290 · other construction installation; 43999; 46499 | 1986 | Active | HA6 |
| A.A. ELECTRICAL INSTALLATIONS SERVICES LIMITED | 43210 · electrical installation | 2003 | Active | TW8 |
| EL-AWEL ENGINEERING LTD | 43290 · other construction installation | 2014 | Active | UB10 |
| HUSE FENCING CONTRACTORS LTD. | 43290 · other construction installation | 1999 | Active | UB8 |
| SPOTLIGHT ELECTRICAL LIMITED | 43210 · electrical installation | 2005 | Active | HA6 |
| LASER JOINERY UK LTD | 43290 · other construction installation | 2001 | Active | HA8 |
| RJ NASH LIMITED | 43290 · other construction installation; 43310; 43330; 43390 | 2002 | Active | UB10 |
| KAMAL ELECTRONICS LIMITED | 43210 · electrical installation | 1984 | Active | TW5 |
| W.E.C. ELECTRICAL CONTRACTORS LTD | 43210 · electrical installation | 2001 | Active | TW7 |
| KCR CONSTRUCTION LTD | 43290 · other construction installation; 70229 | 2021 | Active | UB8 |
| GREEN BY DESIGN LIMITED | 43290 · other construction installation; 43999; 81300 | 1993 | Active | TW3 |
| LES THOMPSON AND COMPANY LIMITED | 43210 · electrical installation | 2003 | Active | TW2 |
| SKY ELECTRICAL LIMITED | 43210 · electrical installation | 1999 | Active | TW2 |
| E.P.S. PROPERTY SERVICES LIMITED | 43210 · electrical installation | 2001 | Active | TW12 |
| JE GROUNDWORK & LANDSCAPE LTD | 43290 · other construction installation; 43110; 81300 | 2025 | Active | TW15 |
| KW MEDIA SYSTEMS LTD | 43210 · electrical installation; 33200; 46439; 62020 | 2017 | Active | TW17 |
| CUSTOM SOLUTIONS LIMITED | 43210 · electrical installation | 2003 | Active | TW19 |
| SHIRE ELECTRICAL CONTRACTORS LTD | 43210 · electrical installation | 2022 | Active | EN2 |
| POWERMAX ELECTRICAL CONTRACTOR LTD | 43210 · electrical installation; 43290 · other construction installation; 42220 | 2017 | Active | EN2 |
| E H P ASSOCIATES LIMITED | 43290 · other construction installation; 43390; 43999 | 1996 | Active | EN3 |
| C.B.T. ELECTRICAL LIMITED | 43210 · electrical installation | 1997 | Active | EN1 |
| ERSAT LIMITED | 43210 · electrical installation | 1994 | Active | EN3 |
| PAREKH VENTURES LTD | 43290 · other construction installation; 43999 | 1997 | Active - Proposal to Strike off | HA1 |
| BOGDAN LIMITED | 43290 · other construction installation | 2003 | Active - Proposal to Strike off | HA5 |
Heat and planning around Middlesex
In Middlesex 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). The figure is the household-weighted mean of 32 postcode districts where these offices are registered.
9% of sampled postcodes in Middlesex sit in a conservation area (24,664 live postcodes across 32 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.