- Advanced Heating Wales
- 01792 771754 - 13 Market Street, Morriston, Swansea, Vale Of Glamorgan, SA6 8DA
- Bladen Plumbing & Heating
- 01792 579900 - 41 Cwmbach Road, Fforestfach, Swansea, Vale Of Glamorgan, SA5 5BN
- Brisco Williams & Sons
- 01792 894961 - Gorseinon Road, Penllergaer, Swansea, Vale Of Glamorgan, SA4 9GG
- Colin Cooney
- 01792 792875 - 54 Heol Y Fran, Cwmrhydyceirw, Swansea, Vale Of Glamorgan, SA6 6TL
- D R Electrics
- 01792 419609 - 67 Eversley Road, Sketty, Swansea, Vale Of Glamorgan, SA2 9DE
- B.K Davies
- 01792 872615 - 18 Brookside, Gowerton, Swansea, Vale Of Glamorgan, SA4 3AY
- Gas Appliance Sales (Gas)
- 0845 2305020 - 42 Queens Road, Sketty, Swansea, Vale Of Glamorgan, SA2 0SB
- Gas Services Wales
- 01792 475100 - 16 Mansel Street, Swansea, Vale Of Glamorgan, SA1 5SG
- Gascare
- 01792 797900 - 2 Castle Graig, Morriston, Swansea, Vale Of Glamorgan, SA6 8NW
- D.M Hewitt
- 01792 296069 - 175 Dunvant Road, Dunvant, Swansea, Vale Of Glamorgan, SA2 7SJ
- R Morgan
- 01269 593117 - 56 Penygarn Road, Ammanford, Dyfed, SA18 3PB
- P & S Heating & Bathroom Centre
- 01792 580585 - Unit 2, Kingsway, Fforestfach, Swansea, Vale Of Glamorgan, SA5 4DL
- Premier Gas Services
- 01558 668716 - Parc Amanwy, Ammanford, Dyfed, SA18 3EP
- Premier Gas Services
- 01792 897400 - 7 Clos-Glanlliw, Pontlliw, Swansea, Vale Of Glamorgan, SA4 9DW
- Premier Gas Services
- 01269 595850 - Parc Amanwy, Ammanford, Dyfed, SA18 3EP
- Sainsbury Heating & Plumbing Services
- 01792 793400 - Cambrian Ct Ferryboat Clo, Swansea Enterprise Park, Swansea, Vale Of Glamorgan, SA6 8QN
- Segal Services
- 01792 203789 - 83 Carnglas Road, Sketty, Swansea, Vale Of Glamorgan, SA2 9BL
- Sry Plumbing & Heating
- 01792 896963 - 27 Heol Cae Copyn, Loughor, Swansea, Vale Of Glamorgan, SA4 6SF
- J.G Thomas
- 01792 650909 - Hall Pentremawr Rd, Swansea, Vale Of Glamorgan, SA1 2LP
- Ant Complete Heat
- 01792 468507 - 19 Dartdford Place, Swansea, Wales, SA1 7BS
- Gower Gas And Water
- 01792 386618 - Glanffynnon, Llangennith, Swansea, Vale Of Glamorgan, SA3 1JE
- Thermotech Underfloor Heating
- 01792 893587 - Dolphin Ho Gorseinon Rd, Penllergaer, Swansea, SA4 1GG
- B.M Phillips
- 01792 456040 - 12a Burman Street, Swansea, Vale Of Glamorgan, SA1 6BW
- A.d Gas Services
- 01792 521837 - Trewyddfa Road, Morriston, Swansea, Vale Of Glamorgan, SA6 8PD
- Mechurion Ltd
- 0800 317944 - 5 Alexandra Terrace Abernant, Mid-Glamorgan, CF44 0RG
- CSD Heating & Plumbing Services
- 0845 8065008 - 2 Meadow Street Cwmavon, Port Talbot, SA12 9EG
- Ceramic Electric
- 0845 8393036 - 34 Bay View Terrace Brynmill, Swansea, SA1 4LT
- Ceramic Electric
- 0845 4817290 - 34 Bay View Terrace Brynmill, Swansea, SA1 4LT
- Alpha Plumbing and Heating Services
- 0845 4817852 - 84 Cefn Road Bonymaen, SWANSEA, SA1 7JD
- Alpha Plumbing and Heating Services
- 0845 4817744 - 84 Cefn Road Bonymaen, SWANSEA, SA1 7JD
- Pegasus Heating Ltd
- 08448 008473 - 45 James Street, Tredegar, NP22 4JF
- Platinum Gas Services
- 0845 1840891 - 19 Mydam Lane Gorseinon, Swansea, SA4 4YA
- Essential Plumbing and Heating
- 07891 522285 - 165 Woolaston Avenue, Cardiff, CF23 6EY