Merthyr Tydfil: plumbing, heating and air-conditioning companies
Merthyr Tydfil has 28 plumbing, heating and air-conditioning companies (SIC 43220) and 62 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 CF48, summer 2026 had ≈4 nights above 18 °C there (24 times the 1991–2020 average of 0.2).
SIC 43220
Open a company
ANDREW JONES SAFETY LTD, incorporated 2011, status Active.
Plumbing, heating and air-conditioning companies
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| C.MAK ELECTRICAL LIMITED | 43210 · electrical installation | 2018 | Active | CF47 |
| SWITCHED ON SOLUTIONS ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2019 | Active | CF47 |
| ROSPER ENGINEERING SERVICES LTD | 43210 · electrical installation | 2013 | Active | CF47 |
| DISTINCTION RIGGING AND ELECTRICAL LTD | 43210 · electrical installation; 42220 | 2020 | Active | CF47 |
| G&M ELECTRICS LTD | 43210 · electrical installation; 33140 | 2020 | Active | CF47 |
| MAPLE LEAF DESIGN & BUILD LTD | 43290 · other construction installation; 41201; 41202 | 2026 | Active | CF47 |
| ZONE ELECTRICAL LIMITED | 43210 · electrical installation | 2005 | Active | CF47 |
| ECAS SYSTEMS LIMITED | 43210 · electrical installation | 2004 | Active | CF47 |
| ALL SECURE DOORS LTD. | 43290 · other construction installation; 41100; 43342; 43390 | 2021 | Active | CF47 |
| KAAGRACE LIMITED | 43210 · electrical installation | 2014 | Active | CF47 |
| WORBOY FIXERS LIMITED | 43210 · electrical installation; 33140 | 2025 | Active | CF47 |
| REES ELECTRICAL SOLUTIONS LTD | 43210 · electrical installation | 2019 | Active | CF48 |
| MDL ELECTRICAL & RENEWABLES LIMITED | 43210 · electrical installation | 2011 | Active | CF48 |
| ALL ROUND ENERGY SOLUTIONS LTD | 43210 · electrical installation | 2012 | Active | CF48 |
| PROLEC ENERGY SOLUTIONS LTD | 43210 · electrical installation | 2022 | Active | CF48 |
| VALLEYS RESIN LTD | 43290 · other construction installation | 2024 | Active | CF48 |
| EFS SYSTEMS (UK) LTD | 43210 · electrical installation | 2012 | Active | CF48 |
| ACP ELECTRICAL LIMITED | 43210 · electrical installation | 2019 | Active | CF48 |
| FRONTIER POWER SOLUTIONS LTD | 43210 · electrical installation | 2026 | Active | CF47 |
| DANNY ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2018 | Active | CF48 |
| LIGHTNING SOLUTIONS LIMITED | 43210 · electrical installation | 2020 | Active | CF48 |
| IR ENERGY HOLDINGS LIMITED | 43210 · electrical installation | 2024 | Active | CF48 |
| NOARC ELECTRICAL LTD | 43210 · electrical installation | 2026 | Active | CF48 |
| A1 ZERO CARBON LTD | 43290 · other construction installation | 2024 | Active | CF48 |
| AMBER & RUBY DEVELOPMENTS LIMITED | 43290 · other construction installation; 68209 | 2017 | Active | CF48 |
| HOME & DRY (MERTHYR TYDFIL) LIMITED | 43290 · other construction installation | 2007 | Active | CF48 |
| JODAN CONTRACTS LIMITED | 43290 · other construction installation | 2015 | Active | CF48 |
| LIGHTNING SOLUTIONS (WALES) LIMITED | 43210 · electrical installation | 2013 | Active | CF48 |
| M & S ROLLER SHUTTER DOORS LIMITED | 43290 · other construction installation | 2008 | Active | CF48 |
| M.R.S ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2023 | Active | CF48 |
| MAINTENANCE MATTERS MERTHYR LTD | 43290 · other construction installation | 2026 | Active | CF48 |
| TIER 1 CONSTRUCTION SERVICES LTD | 43290 · other construction installation | 2019 | Active | CF48 |
| MINERVA CONSTRUCTION (UK) LTD | 43290 · other construction installation | 2017 | Active | CF48 |
| SOLARFIT ENERGY LTD | 43210 · electrical installation | 2025 | Active | CF48 |
| RAW ELECTRICAL ENGINEERING SOLUTIONS LIMITED | 43210 · electrical installation | 2018 | Active | CF48 |
| LB SYSTEMS ELECTRICAL LTD | 43210 · electrical installation | 2025 | Active | CF48 |
| WOODTECH CONSTRUCTION LTD | 43290 · other construction installation; 43999 | 2023 | Active | CF48 |
| GS WILLIAMS LTD | 43210 · electrical installation | 2025 | Active | CF48 |
| S WILLIAMS ELECTRICAL SERVICES LTD | 43210 · electrical installation; 41201; 41202; 43390 | 2026 | Active | CF48 |
| K.S.REGAN ELECTRICAL LIMITED | 43210 · electrical installation | 2017 | Active | CF48 |
| AXIS ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2026 | Active | CF48 |
| AURORA B SOLAR LTD | 43210 · electrical installation | 2024 | Active | CF48 |
| GEN TECH ELECTRIC LTD | 43210 · electrical installation | 2021 | Active | CF48 |
| ENVISION CONTRACTORS LTD | 43290 · other construction installation | 2023 | Active | CF48 |
| CLEAVER LIMITED | 43210 · electrical installation | 2014 | Active | CF48 |
| A-SPEC ELECTRICAL LTD | 43210 · electrical installation | 2019 | Active | CF48 |
| EXCELSIOR ELECTRICAL ENGINEERING LTD | 43210 · electrical installation | 2024 | Active | CF48 |
| PHOENIX FENCING & CONSTRUCTION LTD | 43290 · other construction installation | 2021 | Active | CF48 |
| POWER SOLUTIONS ELECTRICAL CONTRACTORS LTD | 43210 · electrical installation | 2025 | Active | CF48 |
| QDL CONTRACTORS LIMITED | 43290 · other construction installation | 2007 | Active | CF48 |
| TAF ELECTRICAL GROUP LTD | 43210 · electrical installation | 2026 | Active | CF48 |
| A.L.F. ELECTRICAL MANAGEMENT LIMITED | 43210 · electrical installation | 2018 | Active | CF48 |
| PHASOR ELECTRICAL SERVICES LIMITED | 43210 · electrical installation; 41100 | 2025 | Active | CF48 |
| HZE SOLUTIONS LTD | 43210 · electrical installation; 43390 | 2026 | Active | CF48 |
| MATE ELECTRICAL AND RENEWABLES LTD | 43210 · electrical installation | 2022 | Active | CF48 |
| JME INDUSTRIAL SERVICES LTD | 43210 · electrical installation; 33120; 71122; 71129 | 2026 | Active | CF48 |
| M HODGES SERVICES LTD | 43290 · other construction installation | 2016 | Active - Proposal to Strike off | CF47 |
| R HARRIS SOLUTIONS LIMITED | 43210 · electrical installation | 2014 | Active - Proposal to Strike off | CF48 |
| THE CONTRACTING GROUP LTD | 43290 · other construction installation; 81300 | 2019 | Active - Proposal to Strike off | CF48 |
| COOMBES ELECTRICAL LTD | 43210 · electrical installation | 2025 | Liquidation | CF48 |
| JHE SYSTEM SERVICES LTD | 43210 · electrical installation | 2022 | Active - Proposal to Strike off | CF48 |
| ANVIL ELECTRICAL AND SECURITY LTD | 43210 · electrical installation | 2023 | Active - Proposal to Strike off | CF46 |
Heat and planning around Merthyr Tydfil
In Merthyr Tydfil last summer (2026) there were ≈4 nights that stayed above 18 °C — 24 times the 1991–2020 average of 0.2 (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.
8% of sampled postcodes in Merthyr Tydfil sit in a conservation area (1,730 live postcodes across 3 districts).
In Wales 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.