Llandeilo: plumbing, heating and air-conditioning companies
Llandeilo has 12 plumbing, heating and air-conditioning companies (SIC 43220) and 6 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 SA19, summer 2026 had ≈3 nights above 18 °C there (8 times the 1991–2020 average of 0.4).
SIC 43220
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ALED LEWIS A'I FAB PLUMBING HEATING & RENEWABLES LIMITED, incorporated 2021, status Active.
Plumbing, heating and air-conditioning companies
| Company | Incorporated | Status | District |
|---|---|---|---|
| ALED LEWIS A'I FAB PLUMBING HEATING & RENEWABLES LIMITED | 2021 | Active | SA19 |
| TERRY DAVIES PLUMBING & HEATING LIMITED | 2013 | Active | SA19 |
| SHAUN GEORGE (PLUMBING & HEATING) LIMITED | 2010 | Active | SA19 |
| GEORGE ROWAN CHIMNEYS AND STOVES LTD | 2012 | Active | SA19 |
| KB HOME MAINTENANCE LTD | 2026 | Active | SA19 |
| SOLAR SAVE RENEWABLES LIMITED | 2018 | Active | SA19 |
| D G DAVIES LTD | 2015 | Active | SA19 |
| ANDREW VAUGHAN DAVIES LTD | 2017 | Active | SA19 |
| BLACK MOUNTAIN FIRE LTD | 2022 | Active | SA19 |
| RLM PLUMBING LIMITED | 2002 | Active | SA19 |
| DK & J ROBERTS LIMITED | 2005 | Active | SA19 |
| HAYES HEATING AND HOMES LTD | 2024 | Active | SA19 |
Electrical and other installation companies
| Company | SIC | Incorporated | Status | District |
|---|---|---|---|---|
| LIVEN UP LIMITED | 43210 · electrical installation | 2007 | Active | SA19 |
| NLM ELECTRICAL LTD | 43210 · electrical installation | 2026 | Active | SA19 |
| KPM ELECTRICAL SERVICES LTD | 43210 · electrical installation | 2023 | Active | SA19 |
| CWB ELECTRICAL ENGINEERS LIMITED | 43210 · electrical installation | 2012 | Active | SA19 |
| DAVIES CONSULTANCY GROUP LTD. | 43210 · electrical installation; 70229; 74902 | 2023 | Active - Proposal to Strike off | SA19 |
| TS MARINE ELECTRICAL SERVICES LTD | 43210 · electrical installation; 33140 | 2019 | Active - Proposal to Strike off | SA19 |
Heat and planning around Llandeilo
In Llandeilo last summer (2026) there were ≈3 nights that stayed above 18 °C — 8 times the 1991–2020 average of 0.4 (ERA5 reanalysis, grid ≈30 km, lower than street temperatures in cities). The figure is the household-weighted mean of 1 postcode districts where these offices are registered.
7% of sampled postcodes in Llandeilo sit in a conservation area (825 live postcodes across 1 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.