| Ken Newcombe | 01554 758752 | | 24 Y Fron, Felinfoel, Llanelli, SA15 4LL |  Map & Directions |
| Kingsway Heating | 01554 751712 | | 70 Station Road, Llanelli, SA15 1AN | | Map & Directions |
| R V Harris | 01639 897809 | | 12 Pendarves Terrace, Port Talbot, SA12 6DX | | Map & Directions |
| Albert Williams | 01269 842972 | | 8 Heol Y Deri, Cwmgwili, Llanelli, SA14 6PH | | Map & Directions |
| B H Peprell | 01437 765127 | | 1 Priory Park, Shakespeare Close, Haverfordwest, SA61 1TL | | Map & Directions |
| Abtec | 01437 762283 | | 10 Springfield Close, Haverfordwest, SA61 2QL | | Map & Directions |
| Mdc Heating Services | 01792 203344 | | Ael-Y-Bryn Road, Fforestfach, Swansea, SA5 8JB | | Map & Directions |
| G P Phillips | 01994 230890 | | Maesymilwr, St. Clears, Carmarthen, SA33 4EJ | | Map & Directions |
| Keith Davies | 01639 793527 | | 72 Windsor Village, Port Talbot, SA12 7EY | | Map & Directions |
| S P Adams | 01269 591451 | | 16 Ammanford Road, Tycroes, Ammanford, SA18 3QJ | | Map & Directions |
| Hot & Cold Plumbing Services | 01558 668918 | | Cynlas, Maesybont, Llanelli, SA14 7TB | | Map & Directions |
| Advanced Heating | 01792 771754 | | 13 Market Street, Morriston, Swansea, SA6 8DA | | Map & Directions |
| G F Mayhew | 01646 600454 | | 35 Neyland Heights, Neyland, Milford Haven, SA73 1RQ | | Map & Directions |
| Clive Hughes | 01792 652951 | | 6 Cae Rowland Street, Cwmbwrla, Swansea, SA5 8NY | | Map & Directions |
| Premier Gas Services | 0845 609 6096 | | Broncairo, Llanarthney, Carmarthen, SA32 8JD | | Map & Directions |
| W J Alun Evans | 01570 470883 | | Ardwyn, Cilcennin, Lampeter, SA48 8RS | | Map & Directions |
| W G Beynons | 01639 791911 | | 7 Dulais Fach Road, Tonna, Neath, SA11 3JW | | Map & Directions |
| Gareth Thomas | 01792 405408 | | 43 West Cross Avenue, West Cross, Swansea, SA3 5TX | | Map & Directions |
| Taylor & Williams | 01792 368489 | | 92 Heol Gerrig, Treboeth, Swansea, SA5 9BP | | Map & Directions |
| Kevin Roberts | 01558 685524 | | The Old Stables, Talley, Llandeilo, SA19 7AQ | | Map & Directions |
| A F Johnstone | 01269 594213 | | Alandale, 19 Aberlash Road, Ammanford, SA18 3NE | | Map & Directions |
| Waite J C A | 01558 650460 | | Ffynon Grech, Pumpsaint, Llanwrda, SA19 8YE | | Map & Directions |
| Just In Time | 01639 845509 | | 122 Cwmphil Road, Lower Cwmtwrch, Swansea, SA9 2PX | | Map & Directions |
| J M S Plumbing | 01639 633731 | | 7 Henfaes Terrace, Tonna, Neath, SA11 3EQ | | Map & Directions |
| Brian Finselbach | 01792 773154 | | 4 Brodorion Drive, Cwmrhydyceirw, Swansea, SA6 6LP | | Map & Directions |
| S R Y Plumbing | 07973 680386 | | 124 Borough Road, Loughor, Swansea, SA4 6RY | | Map & Directions |
| A L Buckland | 01792 368045 | | 39 Victoria Avenue, Mumbles, Swansea, SA3 4NQ | | Map & Directions |
| B O B Plumbing | 01792 795465 | | 39 Heol Y Celyn, Swansea Vale, Swansea, SA7 0NT | | Map & Directions |
| Gas Technical Services | 01646 686542 | | Unit 1, Richmond Road, Llannion Park Industrial Estate, Pembroke Dock, SA72 6TZ | | Map & Directions |
| C W Jenkins | 01269 595191 | | Chullans, Tycroes Road, Tycroes, Ammanford, SA18 3NT | | Map & Directions |
| K R Livermore | 01646 636711 | | 83 Blue Anchor Way, Dale, Haverfordwest, SA62 3RJ | | Map & Directions |
| Total Heating Solutions | 01437 768987 | | Westhill Bungalow, Portfield Gate, Haverfordwest, SA62 3LS | | Map & Directions |
| D H Beaman | 01792 652567 | | 123 Cwmbach Road, Fforestfach, Swansea, SA5 5BN | | Map & Directions |
| Valley Heating & Electrical Co | 01792 233754 | | 2 Whitestone Avenue, Bishopston, Swansea, SA3 3DA | | Map & Directions |
| Sms Services | 01834 845245 | | 16 Penally Heights, Penally, Tenby, SA70 7QP | | Map & Directions |
| Haverwarm Ltd | 01437 762266 | | Wells Park, Crundale, Haverfordwest, SA62 4EN | | Map & Directions |
| Cosihome Ltd | 01554 835571 | | 12 Dwynant, Furnace, Burry Port, SA16 0YQ | | Map & Directions |
| J P Velardo | 01792 843916 | | 21 Beryl Road, Clydach, Swansea, SA6 5QB | | Map & Directions |
| J Daly | 01639 842038 | | Unit 206 Ystradgynlais Workshops, Trawsffordd Road, Ynyscedwyn Industrial Estate, Ystradgynlais, Swansea, SA9 1DT | | Map & Directions |
| T H Rogers & Sons Ltd | 01267 223276 | | Awelfryn, Penlanffos Road, Carmarthen, SA31 2HL | | Map & Directions |
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