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CF23: plumbing, heating and air-conditioning companies in Cardiff
CF23 (Cardiff) has 29 plumbing, heating and air-conditioning companies registered here (SIC 43220) and 32 electrical and other installation companies (Companies House, 1 Sep 2026); 0 are MCS-certified for air-to-air yet. If the summer is the question, CF23 had ≈10 nights above 18 °C in 2026 (14 times the 1991–2020 average of 0.7).
CF23
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3 TROJANS LIMITED, incorporated 2022, status Active.
Plumbing, heating and air-conditioning companies
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| 365 ELECTRICAL INSTALLATIONS LTD | 43210 · electrical installation | 2011 | Active | CF23 |
| ADVANCED ELECTRICAL & FIRE LTD | 43210 · electrical installation | 2024 | Active | CF23 |
| AM ELECTRICAL & TRAINING SERVICES LIMITED | 43210 · electrical installation; 85320 | 2023 | Active | CF23 |
| AMODEO LIMITED | 43290 · other construction installation | 2018 | Active | CF23 |
| AMROCK ELECTRICAL LTD | 43210 · electrical installation | 2019 | Active | CF23 |
| ANIES BUILDERS LTD | 43290 · other construction installation; 41202 | 2025 | Active | CF23 |
| ASF ELECTRICAL LIMITED | 43210 · electrical installation | 2022 | Active | CF23 |
| ASG ELECTRICAL INSTALLATIONS LIMITED | 43210 · electrical installation | 2010 | Active | CF23 |
| B & W ELECTRICAL (SOUTH WALES) LIMITED | 43210 · electrical installation | 2006 | Active | CF23 |
| BE ECO ENERGY LIMITED | 43210 · electrical installation; 43290 · other construction installation; 33140; 66120 | 2024 | Active | CF23 |
| BRYAN ELECTRICAL SERVICES TEAM LIMITED | 43210 · electrical installation | 2017 | Active - Proposal to Strike off | CF23 |
| C&M SITE SERVICES LTD. | 43210 · electrical installation; 43999 | 2015 | Active | CF23 |
| C&M SPECIALIST INSTALLATIONS LIMITED | 43210 · electrical installation; 43999 | 2023 | Active | CF23 |
| FRONTIER CONTRACTORS LIMITED | 43290 · other construction installation | 2026 | Active | CF23 |
| JENLEC LIMITED | 43210 · electrical installation; 47540 | 2019 | Active | CF23 |
| JSQUARED ELECTRICAL LTD | 43210 · electrical installation; 16230 | 2023 | Active | CF23 |
| LET’S BUILD SW LTD | 43290 · other construction installation; 41202 | 2023 | Active | CF23 |
| MARK THYME AUDIO VISUAL LTD | 43210 · electrical installation; 43390; 71122 | 2013 | Active | CF23 |
| MJD INSTALLS LIMITED | 43290 · other construction installation | 2023 | Active | CF23 |
| OMNI DESIGN LIMITED | 43290 · other construction installation; 43330; 43390; 43999 | 2005 | Active | CF23 |
| ORION TS LTD | 43210 · electrical installation | 2018 | Active | CF23 |
| POSITIVE ELECTRICAL CARDIFF LIMITED | 43210 · electrical installation | 2018 | Active | CF23 |
| POWERFULL ELECTRICAL LTD. | 43210 · electrical installation; 43290 · other construction installation; 41202; 43999 | 2021 | Active | CF23 |
| PRO RENDER FACADES LTD | 43290 · other construction installation | 2024 | Active | CF23 |
| REGAN'S ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2014 | Active | CF23 |
| RENOVATION SOLUTION CARDIFF LTD | 43290 · other construction installation; 38110 | 2025 | Active - Proposal to Strike off | CF23 |
| RYMA BUILDING LTD | 43290 · other construction installation; 43310; 43320; 43390 | 2024 | Active | CF23 |
| SECURALEC LTD | 43210 · electrical installation | 2014 | Active | CF23 |
| SINCLAIR ELECTRICAL CARDIFF LTD | 43210 · electrical installation | 2013 | Active | CF23 |
| TC CONSTRUCTION GROUP LTD | 43290 · other construction installation; 41100; 41201; 41202 | 2024 | Active | CF23 |
| VISION ELECTRICAL SOLUTIONS(UK) LIMITED | 43210 · electrical installation | 2024 | Active | CF23 |
| VISIONSOLUTIONHOLDINGS LIMITED | 43210 · electrical installation; 41202 | 2024 | Active | CF23 |
What homes around CF23 need
In CF23 last summer (2026) there were ≈10 nights that stayed above 18 °C — 14 times the 1991–2020 average of 0.7 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities).
7% of sampled postcodes in CF23 sit in a conservation area (on-record, 908 live postcodes).
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 for CF23, June–August, minimum at or above 18 °C, retrieved 25 Sep 2026. Conservation-area share: sampled postcode points in CF23, snapshot 25 Sep 2026.
Better than a town-wide list: these are the registered offices in CF23, with that district's hot nights and planning rule.