St Albans: plumbing, heating and air-conditioning companies
St Albans has 110 plumbing, heating and air-conditioning companies (SIC 43220) and 182 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 AL1, summer 2026 had ≈11 nights above 18 °C there (7 times the 1991–2020 average of 1.5).
SIC 43220
Open a company
A & M HEATING (UK) LIMITED, incorporated 2007, status Active.
Plumbing, heating and air-conditioning companies
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| MAYLOE CONSTRUCTION LIMITED | 43210 · electrical installation; 41100; 41202 | 2022 | Active | AL1 |
| ISHOT LTD | 43290 · other construction installation | 2024 | Active | AL1 |
| MABI BUILDERS LIMITED | 43290 · other construction installation; 43390 | 2024 | Active | AL1 |
| NASSAH SERVICES LIMITED | 43210 · electrical installation | 1997 | Active | AL1 |
| L A ALARMS LIMITED | 43290 · other construction installation | 1992 | Active | AL1 |
| HUTCHON ELECTRICAL CONTRACTS LTD | 43210 · electrical installation | 2015 | Active | AL1 |
| LCB ELECTRICAL SERVICE LIMITED | 43210 · electrical installation | 2026 | Active | AL1 |
| BRACKLEY GROUP LTD | 43210 · electrical installation; 41100; 43390; 43999 | 2023 | Active | AL1 |
| FIRST CALL BUILDING MAINTENANCE MANAGEMENT LIMITED | 43210 · electrical installation | 2009 | Active | AL1 |
| MEMCS LTD | 43210 · electrical installation | 2026 | Active | AL1 |
| OMEGA PROJECT ELECTRICAL LTD | 43210 · electrical installation | 2024 | Active | AL1 |
| BAILEY SMITH CONSULTING LIMITED | 43290 · other construction installation; 70229; 71122; 74901 | 2015 | Active | AL3 |
| COLLINGS ELECTRICAL LTD | 43210 · electrical installation | 2014 | Active | AL3 |
| SOLUTIONS TAD LIMITED | 43210 · electrical installation; 43390; 81291 | 2009 | Active | AL1 |
| COSS CONSTRUCTION LTD | 43290 · other construction installation; 43390; 43999 | 2018 | Active | AL1 |
| ELECTROTEKK LIMITED | 43210 · electrical installation | 2018 | Active | AL1 |
| ELVIDGE LIMITED | 43210 · electrical installation | 2017 | Active | AL1 |
| QUINNMORE CONSTRUCTION LIMITED | 43290 · other construction installation; 41202 | 2026 | Active | AL1 |
| G AND D VISION LTD | 43290 · other construction installation; 59113 | 2026 | Active | AL1 |
| MACANA CONSTRUCTION LIMITED | 43290 · other construction installation | 2011 | Active | AL1 |
| LSPM SERVICES LTD | 43290 · other construction installation | 2025 | Active | AL1 |
| AWI ENGINEERING SOLUTIONS LTD. | 43290 · other construction installation; 41100; 41201; 43120 | 2022 | Active | AL1 |
| PARAGON TIMBERCRAFT LTD | 43290 · other construction installation | 2024 | Active | AL1 |
| BAU FIRE & SECURITY LIMITED | 43290 · other construction installation | 2022 | Active | AL3 |
| BESPOKE FLOORING COMMERCIAL LIMITED | 43290 · other construction installation; 46730; 47530 | 2023 | Active | AL3 |
| HOME BESPOKE LTD | 43290 · other construction installation | 2020 | Active | AL3 |
| LIFT ENGINEERING LIMITED | 43290 · other construction installation | 2019 | Active | AL3 |
| THE SHOWER ROOM LTD. | 43290 · other construction installation | 2013 | Active | AL3 |
| UK POWER CONNECTIONS LTD | 43210 · electrical installation | 2024 | Active | AL3 |
| BSM FIRE PROTECTION LTD | 43290 · other construction installation | 2009 | Active | AL1 |
| JUNGLE SERVICES LIMITED | 43290 · other construction installation | 2025 | Active | AL1 |
| THIS IS JUNGLE LIMITED | 43290 · other construction installation | 2021 | Active | AL1 |
| GOOM ELECTRICAL LIMITED | 43210 · electrical installation | 2008 | Active | AL1 |
| O KOTORI SERVICES LTD | 43210 · electrical installation; 43320 | 2018 | Active | AL1 |
| DM COMMUNICATIONS LIMITED | 43290 · other construction installation | 2023 | Active | AL1 |
| HOLDEN FACILITIES LIMITED | 43290 · other construction installation; 41202; 43991; 43999 | 2022 | Active | AL1 |
| ONTECH COMMUNICATIONS LIMITED | 43290 · other construction installation | 2020 | Active | AL1 |
| ADL ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2020 | Active | AL1 |
| POSITIVE RENOVATIONS LTD | 43290 · other construction installation | 2009 | Active | AL1 |
| BOROUGH ELECTRICAL LIMITED | 43210 · electrical installation | 2014 | Active | AL3 |
| PRIMETECH ELECTRICAL SOLUTIONS LTD | 43210 · electrical installation | 2025 | Active | AL1 |
| FUSE WIRE LTD | 43210 · electrical installation | 2023 | Active | AL1 |
| MCMANUS ELECTRICAL CONTRACTOR LTD | 43210 · electrical installation | 2023 | Active | AL1 |
| KIWI ELECTRICAL SOLUTIONS LIMITED | 43290 · other construction installation | 2011 | Active | AL1 |
| S41 ELECTRICAL SERVICES LTD | 43210 · electrical installation; 43290 · other construction installation; 33140; 71129 | 2026 | Active | AL3 |
| PB ELECTRICAL AUTOMATION LTD | 43210 · electrical installation; 33140 | 2018 | Active | AL1 |
| REGAL-T ELECTRICAL LIMITED | 43210 · electrical installation | 2021 | Active | AL3 |
| LEX ELECTRICAL CONTRACTORS LTD | 43210 · electrical installation | 2024 | Active | AL1 |
| BL CARPENTRY & CONSTRUCTION LTD | 43290 · other construction installation | 2025 | Active | AL1 |
| LIT ELECTRICAL INSTALLATIONS LTD | 43210 · electrical installation | 2023 | Active | AL1 |
| AMANUEL ELECTRICAL LTD | 43210 · electrical installation | 2025 | Active | AL1 |
| VERULAM BUILDING & ROOFING LTD | 43290 · other construction installation | 2021 | Active | AL3 |
| MEKATRONICS LTD | 43210 · electrical installation; 33120; 33140; 71122 | 2020 | Active | AL3 |
| HERTS FENCING CONTRACTORS LTD | 43290 · other construction installation | 2025 | Active | AL1 |
| MICI STUDIO LTD | 43290 · other construction installation; 82990 | 2022 | Active | AL1 |
| JDAA ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2026 | Active | AL1 |
| OJ POOLE ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2009 | Active | AL1 |
| TECH INSULATION LTD | 43290 · other construction installation; 43999 | 2026 | Active | AL1 |
| A G H METALS LIMITED | 43210 · electrical installation; 41100 | 2025 | Active | AL1 |
| HAMERTON INSTALLATIONS LTD | 43210 · electrical installation | 2025 | Active | AL1 |
| HAMMER ENTERPRISES LTD | 43210 · electrical installation | 2025 | Active | AL1 |
| BARKA CONSTRUCTION LIMITED | 43210 · electrical installation | 2008 | Active | AL3 |
| DOB ELECTRICAL LIMITED | 43210 · electrical installation | 2023 | Active | AL3 |
| FIXED 24HR LTD | 43290 · other construction installation | 2025 | Active | AL3 |
| HAWK CONTRACTING LTD | 43210 · electrical installation | 2021 | Active | AL3 |
| S.MILLER ELECTRICAL LTD | 43210 · electrical installation | 2021 | Active | AL3 |
| SIMPLY SOLAR INSTALLERS LTD | 43290 · other construction installation | 2026 | Active | AL3 |
| STEP BY STEP ELECTRICAL LTD | 43210 · electrical installation | 2023 | Active | AL3 |
| VOSC PROPERTY SOLUTIONS LTD | 43290 · other construction installation; 41202; 98000; 98200 | 2023 | Active | AL3 |
| WILLOWS ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2023 | Active | AL1 |
| AG CONSULTANCY & FACADE MANAGEMENT LIMITED | 43290 · other construction installation; 41202; 43342; 70229 | 2018 | Active | AL4 |
| PMAJ LIMITED | 43290 · other construction installation; 70229 | 2023 | Active | AL4 |
| A&B ELECTRICS (HERTS) LTD | 43210 · electrical installation | 2017 | Active | AL4 |
| BEACONSFIELD STOVES LTD | 43290 · other construction installation | 2026 | Active | AL3 |
| SB TECHNICAL SERVICES LTD | 43210 · electrical installation; 61900; 95110 | 2021 | Active | AL4 |
| UA CONSTRUCTION SERVICES LTD | 43290 · other construction installation | 2022 | Active | AL2 |
| ATLAS MANAGEMENT CONSULTANTS LTD | 43290 · other construction installation; 43390; 70229; 71129 | 2023 | Active | AL4 |
| MECHANICAL BUILDING SERVICES CONSULTANCY LIMITED | 43290 · other construction installation; 43390; 71122; 71129 | 2021 | Active | AL4 |
| FILM SCENERY LTD | 43290 · other construction installation | 2025 | Active | AL2 |
| KOALA & ROO LTD | 43210 · electrical installation; 62012 | 2025 | Active | AL4 |
| BC CONSTRUCTION LTD | 43290 · other construction installation | 2023 | Active | AL2 |
| J&K PROPERTY (HERTS) LTD | 43290 · other construction installation | 2026 | Active | AL4 |
| DAVE PAY GROUP LTD | 43290 · other construction installation | 2025 | Active | AL4 |
| SOLAR PROJECTS LTD | 43210 · electrical installation | 2023 | Active | AL4 |
| RENOV8TIONS LIMITED | 43210 · electrical installation | 2012 | Active | AL2 |
| RB LIGHTING LTD | 43210 · electrical installation | 2022 | Active | AL4 |
| MASONS GROUP LTD | 43290 · other construction installation | 2021 | Active | AL2 |
| SMARTPLC.COM LTD | 43210 · electrical installation | 2024 | Active | AL2 |
| SPECIALIST ELECTRICAL SOLUTIONS LTD | 43210 · electrical installation | 2024 | Active | AL2 |
| BLOCK FIRE LTD | 43210 · electrical installation; 71200; 80200; 84250 | 2026 | Active | AL4 |
| S.NOBLE CONSTRUCTION LTD | 43290 · other construction installation | 2011 | Active | AL2 |
| JC ELECTRICAL TESTING LTD | 43210 · electrical installation; 71200 | 2025 | Active | AL2 |
| MICHEAL WALSH SERVICES LTD | 43290 · other construction installation | 2016 | Active | AL2 |
| HARDING BROS. ELECTRICAL LIMITED | 43210 · electrical installation | 1975 | Active | AL4 |
| LUNAR ELECTRICAL LIMITED | 43210 · electrical installation | 2023 | Active | AL4 |
| PENDERGATE HARDINGS LTD | 43210 · electrical installation | 2017 | Active | AL4 |
| VERULAM GROUP LTD | 43210 · electrical installation; 41100; 43390; 71129 | 2026 | Active | AL4 |
| SYSON ELECTRICAL LTD | 43210 · electrical installation | 2023 | Active | AL2 |
| VISION BUILT STRUCTURES LIMITED | 43290 · other construction installation; 41201; 43999 | 2026 | Active | AL2 |
| AL2 ENGINEERING LTD | 43210 · electrical installation | 2026 | Active | AL2 |
Heat and planning around St Albans
In St Albans last summer (2026) there were ≈10.8 nights that stayed above 18 °C — 8 times the 1991–2020 average of 1.4 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities). The figure is the household-weighted mean of 5 postcode districts where these offices are registered.
27% of sampled postcodes in St Albans sit in a conservation area (4,742 live postcodes across 5 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.