Hemel Hempstead: plumbing, heating and air-conditioning companies
Hemel Hempstead has 120 plumbing, heating and air-conditioning companies (SIC 43220) and 263 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 HP2, summer 2026 had ≈10 nights above 18 °C there (8 times the 1991–2020 average of 1.3).
SIC 43220
Open a company
A M-GEARS LTD, incorporated 2016, status Active.
Plumbing, heating and air-conditioning companies
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| R&R ELECTRICS LTD | 43210 · electrical installation; 35130 | 2010 | Active | HP2 |
| BBM ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2012 | Active | HP2 |
| KMM/LANDSCAPE/SOLUTIONS LTD | 43290 · other construction installation; 41201; 64203 | 2019 | Active | HP2 |
| GGF CONTRACTORS LTD | 43290 · other construction installation; 43110; 43999 | 2020 | Active | HP2 |
| COMFORTECH ELECTRICAL LTD | 43210 · electrical installation | 2023 | Active | HP2 |
| ORUS TECHNICAL SERVICES LTD | 43210 · electrical installation; 62012; 80200; 84250 | 2025 | Active | HP2 |
| KGRM ELECTRICAL LTD | 43210 · electrical installation | 2026 | Active | HP2 |
| KJP-ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2020 | Active | HP2 |
| I & S GEORGIEVI CONSTRUCTION LTD | 43290 · other construction installation | 2015 | Active | HP2 |
| CAMPKIN MECHANICAL INSTALLATIONS LTD | 43290 · other construction installation | 2022 | Active | HP2 |
| BOXMOOR AV LTD | 43210 · electrical installation; 43910 | 2024 | Active | HP1 |
| HARVEY & SONS FIRE AND ELECTRICAL LIMITED | 43210 · electrical installation | 2026 | Active | HP1 |
| TIMOTHY PROPERTY DEVELOPMENT LIMITED | 43290 · other construction installation | 2025 | Active | HP1 |
| CLOSETEAM LTD | 43290 · other construction installation; 43390 | 2023 | Active | HP2 |
| HEMSURE LIMITED | 43290 · other construction installation; 43342 | 2024 | Active | HP2 |
| LUTUS CONTRACTS LTD | 43290 · other construction installation; 41201; 41202 | 2021 | Active | HP2 |
| C F WHOLESALE LTD | 43210 · electrical installation; 46520 | 2021 | Active | HP1 |
| COMPLETE FINISH LTD | 43210 · electrical installation; 43341 | 2012 | Active | HP1 |
| JRH ELECTRICAL LIMITED | 43210 · electrical installation | 2008 | Active | HP1 |
| PRIME STEEL SERVICES LIMITED | 43290 · other construction installation | 2022 | Active | HP1 |
| 1169 LIMITED | 43290 · other construction installation | 2014 | Active | HP2 |
| AHA DEVELOPMENTS (HILLSIDE) LIMITED | 43290 · other construction installation; 41100; 41202; 43390 | 2024 | Active | HP2 |
| BRAVOSPIRK ELECTRICAL LTD | 43210 · electrical installation; 42220; 43999 | 2026 | Active | HP2 |
| C&P CREATIVE CONSTRUCTION LTD | 43290 · other construction installation; 41100; 43390; 43999 | 2024 | Active | HP2 |
| CEDARWOOD HOME IMPROVEMENTS LTD | 43290 · other construction installation | 2023 | Active | HP2 |
| COMPLETE CEILING SOLUTIONS LTD | 43290 · other construction installation; 41100; 43390; 43999 | 2023 | Active | HP2 |
| CPOINT LTD | 43290 · other construction installation | 2014 | Active | HP2 |
| CRJ INTERNATIONAL (SIGN) LIMITED | 43290 · other construction installation; 81100; 82110 | 2017 | Active | HP2 |
| DAN CONSTRUCTION & LANDSCAPES LTD | 43290 · other construction installation; 41100; 43999; 81300 | 2023 | Active | HP2 |
| DH CARPENTER & JOINERY LTD | 43290 · other construction installation; 43320; 43390; 43999 | 2025 | Active | HP2 |
| DH CONSTRUCTION CONTRACTORS LIMITED | 43290 · other construction installation; 32990; 43320; 43999 | 2025 | Active | HP2 |
| ELECTRIC DAN LTD | 43210 · electrical installation | 2024 | Active | HP2 |
| GAVIN WORBY ELECTRICAL LTD | 43210 · electrical installation | 2023 | Active | HP2 |
| GREENGATES CONSTRUCTION LTD | 43290 · other construction installation; 43390; 43999 | 2018 | Active | HP2 |
| GREENGATES GROUNDWORKS LTD | 43290 · other construction installation; 43120; 43999 | 2024 | Active | HP2 |
| INTERGRATED SECURITY SERVICES LIMITED | 43210 · electrical installation | 2003 | Active | HP2 |
| LM BROWN ROOFING LTD | 43290 · other construction installation; 43910; 43999 | 2026 | Active | HP2 |
| LONE ASH DEVELOPMENTS LTD | 43290 · other construction installation; 41100; 41202; 42990 | 2026 | Active | HP2 |
| LORIMER-O'NEILL GRAB & GROUNDWORKS LTD | 43290 · other construction installation; 42110; 43120; 43999 | 2024 | Active | HP2 |
| MAIL CIVILS LTD | 43290 · other construction installation; 42110; 43120; 43999 | 2025 | Active | HP2 |
| MAVELYN GROUP LTD | 43290 · other construction installation; 41100; 42990; 43999 | 2026 | Active | HP2 |
| MENTMORE POWER SERVICES LIMITED | 43210 · electrical installation | 2017 | Active | HP2 |
| MJH PLASTERING LTD | 43290 · other construction installation; 43310; 43330; 43390 | 2024 | Active | HP2 |
| MJL CONTRACT MANAGEMENT LTD | 43290 · other construction installation | 2025 | Active | HP2 |
| MPR ELEC SOLUTIONS LTD | 43210 · electrical installation; 43999 | 2026 | Active | HP2 |
| P A ELECTRICAL (HERTS) LTD | 43210 · electrical installation | 2017 | Active | HP2 |
| PARAMOUNT FIRE LIMITED | 43210 · electrical installation | 2010 | Active | HP2 |
| PK DECOR SERVICES LTD | 43290 · other construction installation; 43341; 43390; 43999 | 2025 | Active | HP2 |
| POSEIDON GROUNDWORKS LTD | 43290 · other construction installation; 43120; 43999 | 2025 | Active | HP2 |
| SPICE BRICKWORK LTD | 43290 · other construction installation; 41201; 41202; 43999 | 2026 | Active | HP2 |
| TAB PROJECTS GROUP LTD | 43290 · other construction installation; 41100; 42990; 43999 | 2026 | Active | HP2 |
| WHITTON ELECTRICAL LIMITED | 43210 · electrical installation | 2009 | Active | HP1 |
| WHITTON FIRE SYSTEMS LIMITED | 43210 · electrical installation | 2014 | Active | HP1 |
| DIAMOND LIGHTING LTD | 43210 · electrical installation | 2014 | Active | HP2 |
| AHMATI CONSTRUCTION LTD | 43290 · other construction installation; 41202; 43390; 43999 | 2026 | Active | HP1 |
| INEL ELECTRICAL LTD | 43210 · electrical installation | 2024 | Active | HP3 |
| JDC AV LIMITED | 43210 · electrical installation | 2026 | Active | HP2 |
| LMK DEVELOPMENTS LIMITED | 43210 · electrical installation; 96090 | 2018 | Active | HP2 |
| TCE ELECTRICAL CONTRACTORS LTD | 43210 · electrical installation | 2023 | Active | HP2 |
| BNH LIMITED | 43290 · other construction installation; 41100; 41201; 41202 | 2024 | Active | HP2 |
| MONDO PERFECTO LTD | 43290 · other construction installation; 80200 | 2016 | Active | HP2 |
| PICTURE2SOUND LTD | 43210 · electrical installation | 2024 | Active | HP2 |
| IHR CONSTRUCTION AND DEVELOPMENT LIMITED | 43290 · other construction installation | 2024 | Active | HP2 |
| SANSEVERINOS CONSTRUCTION LTD | 43290 · other construction installation | 2024 | Active | HP2 |
| CHILTERN REFURB & PROJECT MANAGEMENT LTD | 43290 · other construction installation; 41100 | 2026 | Active | HP1 |
| NOVUM POWER SYSTEMS LTD | 43210 · electrical installation; 42220 | 2026 | Active | HP3 |
| SPOTLIGHT ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2019 | Active | HP1 |
| MACCA CONSULTANCY LTD | 43210 · electrical installation; 41100; 41201 | 2019 | Active | HP2 |
| EFAI LTD | 43210 · electrical installation | 2020 | Active | HP1 |
| G&D ELECTRICAL LTD | 43210 · electrical installation | 2020 | Active | HP2 |
| INNOVATIVE PLASTERERS LIMITED | 43290 · other construction installation | 2025 | Active | HP1 |
| ADAM MATTHEWS ELECTRICAL LTD | 43210 · electrical installation | 2017 | Active | HP1 |
| SMILEY ELECTRICAL LIMITED | 43210 · electrical installation | 2019 | Active | HP2 |
| DACHA SSI LIMITED | 43290 · other construction installation | 2007 | Active | HP1 |
| HOLDING SOLUTIONS GROUP LTD | 43290 · other construction installation | 2025 | Active | HP1 |
| JMR ELECTRICAL & MECHANICAL LIMITED | 43210 · electrical installation | 2021 | Active | HP1 |
| JOHN JONES CARPENTRY LTD | 43290 · other construction installation | 2023 | Active | HP1 |
| M.L.B. ELECTRICAL CONTRACTORS LIMITED | 43210 · electrical installation | 2012 | Active | HP1 |
| ORANGE TREE SOLUTIONS LIMITED | 43290 · other construction installation; 43320 | 2025 | Active | HP1 |
| TAURUS SECURE LTD | 43290 · other construction installation | 2020 | Active | HP1 |
| ZONECOMMS LIMITED | 43210 · electrical installation | 1995 | Active | HP1 |
| EICRONLINE LTD | 43210 · electrical installation | 2023 | Active | HP2 |
| MVW ELECTRICAL LTD | 43210 · electrical installation | 2023 | Active | HP2 |
| TFSS LIMITED | 43290 · other construction installation; 58142; 59120; 82990 | 2011 | Active | HP3 |
| UBM5PROPERTIES LTD | 43290 · other construction installation; 80200; 82990 | 2025 | Active | HP3 |
| FRITS & SONS LTD | 43290 · other construction installation | 2022 | Active | HP3 |
| EPEDALS LTD | 43210 · electrical installation; 47640 | 2023 | Active | HP3 |
| JD SPARKS LTD | 43210 · electrical installation | 2016 | Active | HP2 |
| TRH ELECTRICAL SOLUTIONS LTD | 43210 · electrical installation | 2021 | Active | HP3 |
| J&M OPS LTD | 43290 · other construction installation | 2024 | Active | HP3 |
| GRIDLINE CONTRACTORS LTD | 43210 · electrical installation; 43999 | 2026 | Active | HP3 |
| DIANDRI LTD | 43210 · electrical installation | 2014 | Active | HP3 |
| DSHH ELECTRICAL LTD | 43210 · electrical installation | 2022 | Active | HP2 |
| IRIS ELECTRICAL SERVICES LIMITED | 43290 · other construction installation | 2015 | Active | HP2 |
| ADT INNOV8 LTD | 43290 · other construction installation; 43390; 43999 | 2025 | Active | HP3 |
| CLOWNHOUSE PRODUCTIONS LTD | 43210 · electrical installation; 59111; 59112; 77291 | 2024 | Active | HP3 |
| ECOVO ELECTRICAL LTD | 43210 · electrical installation | 2018 | Active | HP3 |
| AELEC LTD | 43210 · electrical installation | 2013 | Active | HP2 |
| NPE ELECTRICS LTD | 43210 · electrical installation | 2020 | Active | HP3 |
| DEBONA ELECTRICAL SERVICES LTD | 43210 · electrical installation; 43290 · other construction installation | 2025 | Active | HP2 |
Heat and planning around Hemel Hempstead
In Hemel Hempstead last summer (2026) there were ≈10 nights that stayed above 18 °C — 8 times the 1991–2020 average of 1.3 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities). The figure is the household-weighted mean of 3 postcode districts where these offices are registered.
2% of sampled postcodes in Hemel Hempstead sit in a conservation area (2,424 live postcodes across 3 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.