Carmarthen: plumbing, heating and air-conditioning companies
Carmarthen has 32 plumbing, heating and air-conditioning companies (SIC 43220) and 48 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 SA33, summer 2026 had ≈8 nights above 18 °C there (11 times the 1991–2020 average of 0.7).
SIC 43220
Open a company
A PERRY PLUMBING AND HEATING LTD, incorporated 2026, status Active.
Plumbing, heating and air-conditioning companies
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| BGS HOME IMPROVEMENTS LTD | 43290 · other construction installation; 43390 | 2022 | Active | SA33 |
| PW SOLAR LTD | 43210 · electrical installation | 2026 | Active | SA31 |
| SYLWESTER CONSTRUCTION LTD | 43290 · other construction installation | 2019 | Active | SA31 |
| STUDIO CLAASH LIMITED | 43290 · other construction installation; 71111; 90030 | 2026 | Active | SA33 |
| BROLEC ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2013 | Active | SA31 |
| BROLEC SOLAR SERVICES LTD | 43210 · electrical installation; 43290 · other construction installation | 2022 | Active | SA31 |
| WESTCOAST DOORS LTD | 43290 · other construction installation | 2024 | Active | SA31 |
| RKES (WALES) LIMITED | 43210 · electrical installation | 2012 | Active | SA33 |
| TOWY CONSTRUCTION LTD | 43290 · other construction installation; 64203 | 2020 | Active | SA31 |
| DYFED ALARMS LIMITED | 43290 · other construction installation; 80200 | 1999 | Active | SA31 |
| DOWN 2 EARTH PROPERTY SOLUTIONS LIMITED | 43210 · electrical installation | 2012 | Active | SA31 |
| XRG INSTALLATIONS LIMITED | 43210 · electrical installation | 2018 | Active | SA31 |
| RPW FIRE SPRINKLERS LIMITED | 43290 · other construction installation | 2017 | Active | SA33 |
| QU-BE ELECTRICAL & RENEWABLE LIMITED | 43210 · electrical installation | 2023 | Active | SA33 |
| BULLOCK CONSULTING LTD | 43210 · electrical installation; 42990 | 2005 | Active | SA31 |
| KORE SERVICES LTD | 43210 · electrical installation | 2025 | Active | SA31 |
| ZARA INTERIORS LIMITED | 43290 · other construction installation; 47599 | 2009 | Active | SA31 |
| K R GUEST GROUNDWORKS LTD | 43290 · other construction installation | 2020 | Active | SA33 |
| SOLEC ELECTRICAL LTD | 43210 · electrical installation | 2024 | Active | SA31 |
| HARAD ELECTRICAL LTD | 43210 · electrical installation | 2021 | Active | SA31 |
| LDCQACQ23 LTD | 43210 · electrical installation | 2025 | Active | SA31 |
| ALLSPARKS ELECTRICAL CONTRACTORS LIMITED | 43210 · electrical installation | 2012 | Active | SA33 |
| THE ELECTRIC MAN LIMITED | 43210 · electrical installation | 2003 | Active | SA31 |
| AMAPS ELECTRICAL LIMITED | 43210 · electrical installation | 2014 | Active | SA33 |
| BRIGHTFIX LIMITED | 43210 · electrical installation | 2000 | Active | SA31 |
| CJ PLAYGROUND SERVICES LTD | 43290 · other construction installation | 2019 | Active | SA33 |
| G W PHILLIPS ELECTRICAL LIMITED | 43210 · electrical installation | 2022 | Active | SA33 |
| HOLMES CONTRACTING LTD | 43290 · other construction installation; 38110; 41201; 41202 | 2014 | Active | SA33 |
| EGNI SOLAR CYMRU LTD | 43210 · electrical installation; 43290 · other construction installation | 2022 | Active | SA33 |
| REDLAND PROJECT SERVICES LTD | 43210 · electrical installation | 2014 | Active | SA33 |
| AIR QUALITY TESTING SOLUTIONS LIMITED | 43290 · other construction installation | 2022 | Active | SA33 |
| ANDREW PHILLIPS ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2019 | Active | SA33 |
| CASEY INDUSTRIAL SERVICES LIMITED | 43290 · other construction installation | 2020 | Active | SA33 |
| D M KAYES HOLDINGS LIMITED | 43290 · other construction installation; 68209 | 2025 | Active | SA33 |
| G P KINSEY BUILDING SERVICES LIMITED | 43290 · other construction installation | 2017 | Active | SA33 |
| IDP MAINTENANCE LTD | 43290 · other construction installation | 2018 | Active | SA33 |
| IDP SOLUTIONS (MIDLANDS) LIMITED | 43210 · electrical installation | 2016 | Active | SA33 |
| THORNTON ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2021 | Active | SA33 |
| TLEC ELECTRICAL CONTRACTORS LIMITED | 43210 · electrical installation | 2024 | Active | SA33 |
| WOODSY SHOPFITTING LIMITED | 43290 · other construction installation | 2022 | Active | SA33 |
| TRYDAN ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2010 | Active | SA32 |
| AJD CARMICHAEL LTD. | 43210 · electrical installation | 2022 | Active | SA32 |
| 360 ELECTRICAL SOLUTIONS (WALES) LTD | 43210 · electrical installation | 2026 | Active | SA32 |
| EMC SERVICES (WALES) LIMITED | 43210 · electrical installation | 2002 | Active | SA32 |
| EV LIFE LTD | 43210 · electrical installation | 2019 | Active | SA32 |
| AIR QUALITY TESTING LIMITED | 43290 · other construction installation | 2017 | Active - Proposal to Strike off | SA33 |
| LBJ-MC2 LTD | 43210 · electrical installation | 2022 | Active - Proposal to Strike off | SA31 |
| ELBJ ELECTRICAL LIMITED | 43210 · electrical installation | 2008 | Active - Proposal to Strike off | SA17 |
Heat and planning around Carmarthen
In Carmarthen last summer (2026) there were ≈6.8 nights that stayed above 18 °C — 11 times the 1991–2020 average of 0.6 (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.
11% of sampled postcodes in Carmarthen sit in a conservation area (2,048 live postcodes across 4 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.