| Sms Services | 01834 845245 | | 16 Penally Heights, Penally, Tenby, SA70 7QP |  Map & Directions |
| R G Clark | 01437 731225 | | Cotland Mill Cottage, Wiston, Haverfordwest, SA62 4QD | | Map & Directions |
| P D Lewis | 01239 710847 | | Glancastell, Penlon Road, Newcastle Emlyn, SA38 9HR | | Map & Directions |
| Taylor & Williams | 01792 368489 | | 92 Heol Gerrig, Treboeth, Swansea, SA5 9BP | | Map & Directions |
| Valley Heating & Electrical Co | 01792 233754 | | 2 Whitestone Avenue, Bishopston, Swansea, SA3 3DA | | Map & Directions |
| S R Y Plumbing | 07973 680386 | | 124 Borough Road, Loughor, Swansea, SA4 6RY | | Map & Directions |
| B O B Plumbing | 01792 795465 | | 39 Heol Y Celyn, Swansea Vale, Swansea, SA7 0NT | | Map & Directions |
| J Daly | 01639 842038 | | Unit 206 Ystradgynlais Workshops, Trawsffordd Road, Ynyscedwyn Industrial Estate, Ystradgynlais, Swansea, SA9 1DT | | Map & Directions |
| P J Jones Plumbing & Heating Ltd | 01554 890870 | | 21 Park View Drive, Kidwelly, SA17 4UP | | Map & Directions |
| Albert Williams | 01269 842972 | | 8 Heol Y Deri, Cwmgwili, Llanelli, SA14 6PH | | Map & Directions |
| T & T Heating | 01437 765604 | | Milner Cottage, Herbrandston, Milford Haven, SA73 3TD | | Map & Directions |
| John Townsley | 01792 203588 | | 11 Bernard Street, Uplands, Swansea, SA2 0HU | | Map & Directions |
| Premier Gas Services | 0845 609 6096 | | Broncairo, Llanarthney, Carmarthen, SA32 8JD | | Map & Directions |
| Gareth Thomas | 01792 405408 | | 43 West Cross Avenue, West Cross, Swansea, SA3 5TX | | Map & Directions |
| A C Thorneycroft & Son | 01558 668544 | | Glan-Rhydw, Llanarthney, Carmarthen, SA32 8JJ | | Map & Directions |
| Advanced Heating | 01792 771754 | | 13 Market Street, Morriston, Swansea, SA6 8DA | | Map & Directions |
| M L Lewis | 01646 661426 | | Myrtle Cottage, Chapel Hill, Pembroke, SA71 5HY | | Map & Directions |
| Whitecross & Son | 01792 206156 | | 451 Gower Road, Killay, Swansea, SA2 7DZ | | Map & Directions |
| Phil Rosser | 01545 570835 | | Brownswell, Ciliau Aeron, Lampeter, SA48 7RE | | Map & Directions |
| R Organ | 01994 240793 | | Gwynfryn, Spring Gardens, Whitland, SA34 0HP | | Map & Directions |
| M L Broom | 01639 632210 | | Glebeland House, Glebeland Street, Cadoxton, Neath, SA10 8AY | | Map & Directions |
| Hot & Cold Plumbing Services | 01558 668918 | | Cynlas, Maesybont, Llanelli, SA14 7TB | | Map & Directions |
| Hywel Williams | 01792 207252 | | 54 New Mill Road, Sketty, Swansea, SA2 8PB | | 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 |
| Mdc Heating Services | 01792 203344 | | Ael-Y-Bryn Road, Fforestfach, Swansea, SA5 8JB | | Map & Directions |
| Haverwarm Ltd | 01437 762266 | | Wells Park, Crundale, Haverfordwest, SA62 4EN | | Map & Directions |
| Keith Davies | 01639 793527 | | 72 Windsor Village, Port Talbot, SA12 7EY | | Map & Directions |
| Ken Newcombe | 01554 758752 | | 24 Y Fron, Felinfoel, Llanelli, SA15 4LL | | Map & Directions |
| A F Johnstone | 01269 594213 | | Alandale, 19 Aberlash Road, Ammanford, SA18 3NE | | Map & Directions |
| P R S J Heating | 01267 241832 | | Cenir, Heol Smyrna, Llangain, Carmarthen, SA33 5AD | | Map & Directions |
| Gas Technical Services | 01646 686542 | | Unit 1, Richmond Road, Llannion Park Industrial Estate, Pembroke Dock, SA72 6TZ | | Map & Directions |
| W G Beynons | 01639 791911 | | 7 Dulais Fach Road, Tonna, Neath, SA11 3JW | | Map & Directions |
| J P Velardo | 01792 843916 | | 21 Beryl Road, Clydach, Swansea, SA6 5QB | | Map & Directions |
| Abtec | 01437 762283 | | 10 Springfield Close, Haverfordwest, SA61 2QL | | Map & Directions |
| R F Browne Ltd | 01792 203147 | | 6 Dillwyn Road, Sketty, Swansea, SA2 9AB | | Map & Directions |
| Cosihome Ltd | 01554 835571 | | 12 Dwynant, Furnace, Burry Port, SA16 0YQ | | Map & Directions |
| Abbey Gas Services Ltd | 01792 527628 | | 2 Walters Street, Manselton, Swansea, SA5 9PL | | Map & Directions |
| J S Davies & Son Ltd | 01834 813462 | | Greenfields, Valley Road, Saundersfoot, SA69 9BX | | Map & Directions |
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