| T H Rogers & Sons Ltd | 01267 223276 | | Awelfryn, Penlanffos Road, Carmarthen, SA31 2HL |  Map & Directions |
| J W Yeates | 01792 360596 | | 198A Newton Road , Newton, Swansea, SA3 4UD | | Map & Directions |
| S R Y Plumbing | 07973 680386 | | 124 Borough Road, Loughor, Swansea, SA4 6RY | | Map & Directions |
| R Price & Sons | 01792 702151 | | 859 Llangyfelach Road, Treboeth, Swansea, SA5 9AU | | Map & Directions |
| Advanced Heating | 01792 771754 | | 13 Market Street, Morriston, Swansea, SA6 8DA | | Map & Directions |
| J M S Plumbing | 01639 633731 | | 7 Henfaes Terrace, Tonna, Neath, SA11 3EQ | | Map & Directions |
| P J Jones Plumbing & Heating Ltd | 01554 890870 | | 21 Park View Drive, Kidwelly, SA17 4UP | | Map & Directions |
| K R Livermore | 01646 636711 | | 83 Blue Anchor Way, Dale, Haverfordwest, SA62 3RJ | | Map & Directions |
| Gas Utilities Services | 01639 898951 | | Eglwys Nunnydd, Margam, Port Talbot, SA13 2PS | | Map & Directions |
| Phil Rosser | 01545 570835 | | Brownswell, Ciliau Aeron, Lampeter, SA48 7RE | | Map & Directions |
| Brian Finselbach | 01792 773154 | | 4 Brodorion Drive, Cwmrhydyceirw, Swansea, SA6 6LP | | Map & Directions |
| Sms Services | 01834 845245 | | 16 Penally Heights, Penally, Tenby, SA70 7QP | | Map & Directions |
| M F Price | 01639 841003 | | 41 Ynyscedwyn Road, Ystradgynlais, Swansea, SA9 1BH | | Map & Directions |
| R V Harris | 01639 897809 | | 12 Pendarves Terrace, Port Talbot, SA12 6DX | | Map & Directions |
| Pursey & Ball | 01792 818068 | | Unit 3/4, Neath Abbey Business Park, Neath Abbey, Neath, SA10 7DR | | Map & Directions |
| Albion Plumbing & Heating | 01639 778745 | | 44 Albion Road, Port Talbot, SA12 8BY | | Map & Directions |
| Gas Technical Services | 01646 686542 | | Unit 1, Richmond Road, Llannion Park Industrial Estate, Pembroke Dock, SA72 6TZ | | Map & Directions |
| J W Price | 01792 863163 | | 89 Alltwen Hill, Alltwen, Pontardawe, Swansea, SA8 3BP | | Map & Directions |
| Hywel Williams | 01792 207252 | | 54 New Mill Road, Sketty, Swansea, SA2 8PB | | Map & Directions |
| Mdc Heating Services | 01792 203344 | | Ael-Y-Bryn Road, Fforestfach, Swansea, SA5 8JB | | Map & Directions |
| Cosihome Ltd | 01554 835571 | | 12 Dwynant, Furnace, Burry Port, SA16 0YQ | | Map & Directions |
| G F Mayhew | 01646 600454 | | 35 Neyland Heights, Neyland, Milford Haven, SA73 1RQ | | Map & Directions |
| Rjd Plumbing | 01792 773086 | | Plot 4 Ael-U-Bryn, Heol Las, Birchgrove, Swansea, SA7 9DZ | | Map & Directions |
| Albert Williams | 01269 842972 | | 8 Heol Y Deri, Cwmgwili, Llanelli, SA14 6PH | | Map & Directions |
| S P Adams | 01269 591451 | | 16 Ammanford Road, Tycroes, Ammanford, SA18 3QJ | | Map & Directions |
| R F Browne Ltd | 01792 203147 | | 6 Dillwyn Road, Sketty, Swansea, SA2 9AB | | Map & Directions |
| P R S J Heating | 01267 241832 | | Cenir, Heol Smyrna, Llangain, Carmarthen, SA33 5AD | | Map & Directions |
| B H Peprell | 01437 765127 | | 1 Priory Park, Shakespeare Close, Haverfordwest, SA61 1TL | | Map & Directions |
| A C Thorneycroft & Son | 01558 668544 | | Glan-Rhydw, Llanarthney, Carmarthen, SA32 8JJ | | Map & Directions |
| J S Davies & Son Ltd | 01834 813462 | | Greenfields, Valley Road, Saundersfoot, SA69 9BX | | Map & Directions |
| A L Buckland | 01792 368045 | | 39 Victoria Avenue, Mumbles, Swansea, SA3 4NQ | | Map & Directions |
| Cooney Colin & Son Ltd | 01792 792875 | | 54 Heol Y Fran, Cwmrhydyceirw, Swansea, SA6 6TL | | Map & Directions |
| D H Beaman | 01792 652567 | | 123 Cwmbach Road, Fforestfach, Swansea, SA5 5BN | | Map & Directions |
| Kevin Roberts | 01558 685524 | | The Old Stables, Talley, Llandeilo, SA19 7AQ | | Map & Directions |
| Kingsway Heating | 01554 751712 | | 70 Station Road, Llanelli, SA15 1AN | | Map & Directions |
| Waite J C A | 01558 650460 | | Ffynon Grech, Pumpsaint, Llanwrda, SA19 8YE | | Map & Directions |
| J A Davies | 01554 752591 | | The View, Pencoed Isaf Road, Bynea, Llanelli, SA14 9TW | | Map & Directions |
| M J Kennard & Sons | 01437 763978 | | 18 St. Leonards Avenue, Crundale, Haverfordwest, SA62 4DW | | Map & Directions |
| M L Broom | 01639 632210 | | Glebeland House, Glebeland Street, Cadoxton, Neath, SA10 8AY | | Map & Directions |
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