- 2 A's
- 01275 374524 - Marsh La Trdg Est, Easton-in-Gordano, Bristol, Avon, BS20 0NH
- Watkins Hire
- 01594 837463 - New Dunn Wks, Sling, Coleford, Gloucestershire, GL16 8JD
- A.F.G Engineering
- 01685 871100 - Cambrian Bldgs Canal Road, Cwmbach, Aberdare, Vale Of Glamorgan, CF44 0AE
- A.J.S Tarpaulin Services
- 01633 275500 - Mariner Wy Stephenson St Indust Est, NP19 4PQ
- A & N
- 01633 842775 - 133 Caerleon Road, Newport, Gwent, NP19 7BZ
- All Fuels Maintenance
- 01443 410048 - 23 Heol-y-Glyn, Treharris, Vale Of Glamorgan, CF46 5RX
- Bedford Engineering Services
- 01685 350798 - Blanche Ho Cross Blanche St, Dowlais, Merthyr Tydfil, Vale Of Glamorgan, CF48 3PD
- Blue Flame
- 01443 207771 - 82 Parish Road, Beddau, Pontypridd, Vale Of Glamorgan, CF38 2BU
- Boiler & Burner Maintenance
- 01633 871377 - Woodside Wy Springvale Indust Est, Cwmbran, Gwent, NP44 5BR
- Boiler Plant Maintenance (Cardiff)
- 029 20463600 - Star Sheet Metal Wks Limited East Moors Rd, Cardiff, Vale Of Glamorgan, CF24 5EE
- Keith Bundy
- 01443 208389 - 52 Clos Myddlyn, Beddau, Pontypridd, Vale Of Glamorgan, CF38 2JT
- C.B.H Heating
- 01291 420165 - 17 Ebbw Road, Caldicot, Gwent, NP26 4PR
- Cardiff & Vale Gas Services
- 029 20593523 - 11 Deepdene Close, Cardiff, Vale Of Glamorgan, CF5 4SB
- Carter
- 01633 279653 - Monsanto Chemicals PLC Corporation Rd, NP9 0XF
- Challenge Heating Service
- 01495 224433 - 55 Highfield Road, Blackwood, Gwent, NP12 2EB
- Cwmbran Plumbing & Heating Supplies
- 01633 874616 - Oldbury Road, Cwmbran, Gwent, NP44 3JU
- H Davies
- 01873 854901 - 58 Merthyr Road, Abergavenny, Gwent, NP7 5BY
- Decorative Heating
- 029 20811478 - The Ton Garage Merthyr Rd, Tongwynlais, Cardiff, Vale Of Glamorgan, CF15 7XW
- David A Drew
- 01685 371516 - 17 Francis Street, Dowlais, Merthyr Tydfil, Vale Of Glamorgan, CF48 3SE
- Excelsior Homecare
- 01495 307800 - Unit 38, Rassau Industrial Estate, Rassau, Ebbw Vale, Gwent, NP23 5SD
- Flexitherm Supplies Ltd
- 01633 255020 - 3 Coverack Rd, Newport, NP19 0DS
- Flowbright
- 01656 725592 - 2 Police Houses Court Colman Rd, Pen-y-Fai, Bridgend, Vale Of Glamorgan, CF31 4NE
- Gasco Pontypridd
- 01443 486424 - 1 Whiterock Close, Pontypridd, Vale Of Glamorgan, CF37 2EN
- R.C Green
- 01873 840249 - Avonia Church La, Llanddewi Rhydderch, Abergavenny, Gwent, NP7 9TS
- J Hawkins
- 01443 224176 - 37 Westhill Drive, Llantrisant, Pontyclun, Vale Of Glamorgan, CF72 8DX
- Hawkins Services
- 0845 2915027 -
- B J Hayes Gas Services
- 01633 282820 - Unit 10b, East Bank Road, Felnex Industrial Estate, Newport, Gwent, NP19 4PP
- Heat Exchanger Services
- 01446 771071 - Unit 21h Vale Bsns Pk, Llandow, Cowbridge, Vale Of Glamorgan, CF71 7PF
- Heatech
- 01600 712012 - 19 Tudor Road, Wyesham, Monmouth, Gwent, NP25 3LE
- Heating Replacement Parts & Controls (Newport)
- 01633 243259 - Plumb Centre, Maesglas Industrial Estate, Newport, Gwent, NP20 2NN
- M.J House
- 01495 790425 - Sadaga Llanover Rd, Blaenavon, Pontypool, Gwent, NP4 9HS
- Hurley
- 01633 265882 - 21a North Street, Newport, Gwent, NP20 1JY
- W.P Kelland
- 01443 412030 - 24 The Oaks, Quakers Yard, Treharris, Vale Of Glamorgan, CF46 5HQ
- Lamatherm Products
- 01656 730833 - Forge Factory Site, Maesteg, Vale Of Glamorgan, CF34 0BA
- Lectroheat Industrial Heating Ltd
- 029 20889300 - Unit 16, Pantglas Industrial Estate, Bedwas, Caerphilly, Vale Of Glamorgan, CF83 8DR
- W Lewis
- 01443 731852 - 16 Rhondda Fechan Fm Est, Ferndale, Vale Of Glamorgan, CF43 4LX
- A.J Lovell
- 01443 831456 - 13 Park Crescent, Bargoed, Vale Of Glamorgan, CF81 8PL
- Maindy Heating & Co Ltd
- 01443 773800 - 106 Bute Street, Treorchy, Vale Of Glamorgan, CF42 6AU
- B.I Matthews
- 029 20471832 - 127 Cyfarthfa Street, Cardiff, Vale Of Glamorgan, CF24 3HG
- J.C Matthews
- 01443 831869 - Glynmarch Street, Deri, Bargoed, Vale Of Glamorgan, CF81 9HZ
- P Morgan
- 01633 855488 - Sneyd Pk Malpas Rd, Newport, Gwent, NP20 6QB
- Tim O'Brien
- 01633 277202 - 340a Chepstow Road, Newport, Gwent, NP19 8NP
- P.D.C
- 01656 658564 - 93 Parkfields Road, Bridgend, Vale Of Glamorgan, CF31 4BJ
- P.D Powell & Sons Maintenance Service
- 01495 763230 - 1 Cambria Street, Griffithstown, Pontypool, Gwent, NP4 5HW
- Gerald Payne
- 01873 890677 - Gilboa, Llanvihangel Crucorney, Abergavenny, Gwent, NP7 8HW
- A.C Puddle
- 01495 755820 - Osborne Road, Pontypool, Gwent, NP4 6LU
- Radcraft
- 01633 842945 - 25a Hereford Street, Newport, Gwent, NP19 8DU
- Real Fires
- 01443 480975 - Nile Road, Pontypridd, Vale Of Glamorgan, CF37 1BW
- Relats
- 01633 612212 - Suflex Estate, Newport Road, Risca, Newport, Gwent, NP11 6YD
- Wynne Rudge
- 01443 831992 - The Laurels Aberbargoed, Aberbargoed, Bargoed, Vale Of Glamorgan, CF81 9BX
- S L Gas Services
- 01656 784880 - 107 West Road, Nottage, Porthcawl, Vale Of Glamorgan, CF36 3RY
- S.W Heating Equipment
- 01656 786777 - 11 Elder Drive, Porthcawl, Vale Of Glamorgan, CF36 5RH
- S W Heating Equipment Ltd
- 029 20237654 - 98 Holmesdale Street, Cardiff, Vale Of Glamorgan, CF11 7BU
- Shoreheat Holburn
- 01633 869329 - Unit 25 Court Rd Indust Est, Llanover, Abergavenny, Gwent, NP7 9BY
- Technigas Services
- 01495 313440 - 234 King Street, Brynmawr, Ebbw Vale, Gwent, NP23 4RG
- Valley Heating Ltd
- 01443 831857 - 22 Hanbury Road, Bargoed, Vale Of Glamorgan, CF81 8QT
- J.A Woods
- 01443 682841 - 16 Station Road, Ynyshir, Porth, Vale Of Glamorgan, CF39 0HA
- Ian Wright
- 01443 741327 - 34 Fife Street, Abercynon, Mountain Ash, Vale Of Glamorgan, CF45 4TU
- Advanced Heating Wales
- 01792 771754 - 13 Market Street, Morriston, Swansea, Vale Of Glamorgan, SA6 8DA
- R.G Clark
- 01437 731225 - Cotland Mill Cott, Wiston, Haverfordwest, Dyfed, SA62 4QD
- Colin Cooney
- 01792 792875 - 54 Heol Y Fran, Cwmrhydyceirw, Swansea, Vale Of Glamorgan, SA6 6TL
- B.K Davies
- 01792 872615 - 18 Brookside, Gowerton, Swansea, Vale Of Glamorgan, SA4 3AY
- R.T Davies
- 01554 755127 - The Plumbing Stores Copperworks Rd, Llanelli, Dyfed, SA15 2NE
- Downhome Stoves
- 01558 650675 - Bridgend Gar, Crugybar, SA19 8UE
- Dragon Fire
- 01437 710221 - The Old Post Office, Camrose, Haverfordwest, Dyfed, SA62 6HY
- J Edwards
- 01834 812005 - 4 Heritage Gardens, Kilgetty, Dyfed, SA68 0TW
- Haverwarm Ltd
- 01437 762266 - Wells Park, Crundale, Haverfordwest, Dyfed, SA62 4EN
- D.M Hewitt
- 01792 296069 - 175 Dunvant Road, Dunvant, Swansea, Vale Of Glamorgan, SA2 7SJ
- F.P Hurley
- 01269 831191 - Unit 8 Cross Hands Bsns Pk Heol Parc Mawr, Cross Hands Industrial Estate, Cross Hands, Llanel, Dyfed, SA14 6RE
- Kevin Davies Cookers & Boilers
- 01559 362012 - Plasnewydd Pentrecourt Rd, Llandysul, Dyfed, SA44 5AR
- K.R Livermore
- 01646 636711 - 83 Blue Anchor Way, Dale, Haverfordwest, Dyfed, SA62 3RJ
- Marchant's Heating
- 01239 851609 - Brynheulog, Panteg Cross, Llandysul, Dyfed, SA44 4SJ
- R Morgan
- 01269 593117 - 56 Penygarn Road, Ammanford, Dyfed, SA18 3PB
- B.H Peprell
- 01437 765127 - 1 Shakespeare Close, Priory Park, Haverfordwest, Dyfed, SA61 1TL
- S.W Heating Equipment
- 01646 600630 - 2 Railway Terrace, Neyland, Milford Haven, Dyfed, SA73 1SP
- 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
- Swansea Heating
- 01639 842038 - Unit 206, Ynyscedwyn Industrial Estate, Trawsffordd Road, Ystradgynlais, Swansea, Vale Of Glamorgan, SA9 1DT
- T & T Heating
- 01646 695843 - Milner Cott Herbrandston, Herbrandston, Milford Haven, Dyfed, SA73 3TD
- Thomas Hairdressers
- 01269 842475 - 84 Carmarthen Road, Cross Hands, Llanelli, Dyfed, SA14 6SU
- J.G Thomas
- 01792 650909 - Hall Pentremawr Rd, Swansea, Vale Of Glamorgan, SA1 2LP
- Western Thermal
- 01646 695127 - Thornton Industrial Trading Estate, Milford Haven, Dyfed, SA73 2RX
- Westwood Energy Services
- 01792 862424 - Tawe Ho Alloy Indust Est, Pontardawe, Swansea, Vale Of Glamorgan, SA8 4EN
- P Whittaker
- 01834 843888 - 7 Scotsborough Vw, Tenby, Dyfed, SA70 8DW
- A.T Fletcher
- 01643 707179 - 3 Chestnut Wy, Minehead, Somerset, TA24 6EB
- Chris Lile Heating and Plumbing - Plumbing and central heating services in Minehead, Somerset
- 01643 821231 - Carhampton, Minehead, Somerset, TA24 6LT
- Ant Complete Heat
- 01792 468507 - 19 Dartdford Place, Swansea, Wales, SA1 7BS