Haverfordwest: plumbing, heating and air-conditioning companies
Haverfordwest has 12 plumbing, heating and air-conditioning companies (SIC 43220) and 36 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 SA61, summer 2026 had ≈6 nights above 18 °C there (7 times the 1991–2020 average of 0.9).
SIC 43220
Open a company
A&A HEATING, GAS & OIL LTD, incorporated 2023, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| CH VENTILATION & INSULATION LTD | 2019 | Active | SA61 |
| BOILER SOLUTIONS COVER UK LTD | 2020 | Active | SA61 |
| RADICALPLUMBING LIMITED | 2025 | Active | SA61 |
| A&A HEATING, GAS & OIL LTD | 2023 | Active | SA61 |
| CALON YR ADREF LIMITED | 2023 | Active | SA61 |
| EHT PLUMBING LTD | 2019 | Active | SA61 |
| GARETH PRICE PLUMBING & HEATING LTD | 2014 | Active | SA61 |
| G JENX AND SONS LIMITED | 2025 | Active | SA62 |
| JEFF BEVAN PLUMBING & HEATING LIMITED | 2010 | Active | SA61 |
| RN PLUMBING AND PROPERTY MAINTENANCE LIMITED | 2025 | Active | SA62 |
| GGT. THOMAS & SON LIMITED | 2001 | Active | SA62 |
| PIPING HOT PLUMBING PEMBROKESHIRE LTD | 2015 | Active - Proposal to Strike off | SA61 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| APPLIED ELECTROTECH LIMITED | 43210 · electrical installation | 2008 | Active | SA61 |
| CAMBRAI SERVICES LIMITED | 43290 · other construction installation | 2019 | Active | SA61 |
| CRAFTFIX LIMITED | 43290 · other construction installation; 41201; 41202 | 2026 | Active | SA61 |
| HEYWOOD ELECTRICAL LTD | 43210 · electrical installation | 2019 | Active | SA61 |
| BRIAN PRICE ELECTRICS LTD | 43210 · electrical installation | 2010 | Active | SA61 |
| KCS ENGINEERING LTD | 43210 · electrical installation | 2010 | Active | SA61 |
| NSP MANAGEMENT SOLUTIONS LTD | 43290 · other construction installation; 42220 | 2024 | Active | SA61 |
| PEMBS FENCING LTD | 43290 · other construction installation; 01610; 41100; 68209 | 2022 | Active | SA61 |
| SOLWR LTD | 43210 · electrical installation | 2022 | Active | SA61 |
| AB SECURITY & ELECTRICAL SERVICES LIMITED | 43210 · electrical installation; 80200 | 2016 | Active | SA61 |
| AERMECH LIMITED | 43290 · other construction installation | 2007 | Active | SA61 |
| AMG ELECTRICAL (PEMBS) LTD | 43210 · electrical installation | 2016 | Active | SA61 |
| RH SOLAR LTD | 43210 · electrical installation | 2023 | Active | SA62 |
| GLOBAL ENERGY23 LIMITED | 43210 · electrical installation | 2023 | Active | SA62 |
| SHM ELECTRICAL SERVICES (WALES) LIMITED | 43210 · electrical installation | 2014 | Active | SA62 |
| D G ELECTRICAL (SOUTH WALES) LIMITED | 43210 · electrical installation | 2017 | Active | SA62 |
| WEST WALES SOLAR LIMITED | 43210 · electrical installation; 43999 | 2023 | Active | SA62 |
| CLEDDAU ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2012 | Active | SA61 |
| R.A. WILLIAMS CONSTRUCTION LIMITED | 43290 · other construction installation | 2021 | Active | SA62 |
| HORGAN TIMBER SYSTEMS LTD | 43290 · other construction installation; 43390 | 2023 | Active | SA62 |
| MARCUS REILLY 51 LTD | 43290 · other construction installation | 2025 | Active | SA62 |
| SMITH FABRICATION LTD | 43290 · other construction installation; 25290; 33110; 33150 | 2016 | Active | SA62 |
| TJB ELECTRICALS LTD | 43210 · electrical installation | 2015 | Active | SA63 |
| ROWAN ELECTRICAL SERVICES LIMITED | 43210 · electrical installation | 2019 | Active | SA63 |
| S KIMSEY CONSULTING LIMITED | 43210 · electrical installation; 43290 · other construction installation; 41100 | 2020 | Active | SA62 |
| PHOENIX GROUNDWORKS & CONSTRUCTION LIMITED | 43290 · other construction installation | 2017 | Active | SA62 |
| THAT LASS ELECTRICAL LTD | 43210 · electrical installation | 2022 | Active | SA62 |
| SILVER STOVES LTD | 43290 · other construction installation; 47190 | 2023 | Active | SA62 |
| O.C. ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2008 | Active | SA62 |
| MDP ELECTRICAL EAST SUSSEX LTD | 43210 · electrical installation; 74909 | 2022 | Active | SA62 |
| CITY SPARKS ELECTRICAL LTD | 43210 · electrical installation | 2026 | Active | SA62 |
| INTERNATIONAL CONNECTIVITY SERVICES LTD | 43210 · electrical installation; 61100 | 2019 | Active - Proposal to Strike off | SA61 |
| NYSHI INTERIOR SERVICES LTD | 43290 · other construction installation | 2012 | Active - Proposal to Strike off | SA61 |
| R & L INTERIORS (COMMERCIAL) LIMITED | 43290 · other construction installation | 2011 | Active - Proposal to Strike off | SA61 |
| WESTERN ECO SOLUTIONS LTD | 43290 · other construction installation | 2024 | Active - Proposal to Strike off | SA62 |
| PEMBROKESHIRE BUILD LIMITED | 43290 · other construction installation | 2019 | Active - Proposal to Strike off | SA62 |
Heat and planning around Haverfordwest
In Haverfordwest last summer (2026) there were ≈6 nights that stayed above 18 °C — 7 times the 1991–2020 average of 0.9 (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.
12% of sampled postcodes in Haverfordwest sit in a conservation area (1,552 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.