Double Glazing in Merthyr Tydfil |
| R & P Windows Ltd | 01443 485100 | | 34 Thurston Road, Pontypridd, CF37 4RL |  Map & Directions |
| Empire Windows Ltd | 01443 473101 | | 77 Oxford Street, Mountain Ash, CF45 3HD | | Map & Directions |
| Suburban Windows | 029 2056 5300 | | Unit 1n, Ely Bridge Industrial Estate, Wroughton Place, Ely, Cardiff, CF5 4AB | | Map & Directions |
| Brian James Window Group Ltd | 01443 824890 | | Upper Boat Trading Estate, Pontypridd, CF37 5BP | | Map & Directions |
| Stacey Windows | 029 2046 0139 | | Stacey Workshops, Stacey Road, Cardiff, CF24 1DW | | Map & Directions |
| Dinas Windows Ltd | 01446 420262 | | Unit 16, Cardiff Road, Ty Verlon Industrial Estate, Barry, CF63 2BE | | Map & Directions |
| Badman P & J | 029 2086 6909 | | Greenfield House, Pontygwindy Road, Caerphilly, CF83 3HY | | Map & Directions |
| Cardiff Glazing | 029 2038 3306 | | 34 Llandaff Road, Cardiff, CF11 9NJ | | Map & Directions |
| Designer Glass | 01685 872481 | | Unit 7, Cwmbach Industrial Estate, Cwmbach, Aberdare, CF44 0AE | | Map & Directions |
| Elite Window Services | 01443 491007 | | 78 Pritchard Street , Tonyrefail, Porth, CF39 8PA | | Map & Directions |
| Olympic Windows | 029 2075 2518 | | 163 Fishguard Road, Llanishen, Cardiff, CF14 5PS | | Map & Directions |
| Amazing Glazing Ltd | 01685 881561 | | 39 Cardiff Street, Aberdare, CF44 7DG | | Map & Directions |
| Thomas & Wright Windows | 029 2075 5103 | | Rear Of The Ty Glas, Ty Glas Avenue, Llanishen, Cardiff, CF14 5DX | | Map & Directions |
| Merlin Conservatories & Windows | 01443 843979 | | Unit 4 Taff Business Centre, Tonteg Road, Treforest Industrial Estate, Pontypridd, CF37 5UA | | Map & Directions |
| Welsh Windows | 01443 673870 | | 40 Winslade Avenue, Tonyrefail, Porth, CF39 8NP | | Map & Directions |
| New Age Systems Pvcu Ltd | 01443 431026 | | Unit 38, Gelli Industrial Estate, Gelli, Pentre, CF41 7UW | | Map & Directions |
| D G Window Services Ltd | 01446 420287 | | Unit 19, Arcade Workshops, Atlantic Trading Estate , Barry, CF63 3RF | | Map & Directions |
| Mr Windows Ltd | 029 2059 7070 | | Unit 5/6, Argyle Way, Ely Distribution Centre, Cardiff, CF5 5NJ | | Map & Directions |
| J T Plastics | 029 2049 0600 | | Unit 9, Dumballs Road, Cardiff, CF10 5FE | | Map & Directions |
| Spar Plas | 01656 721053 | | Unit 13 Parc-Y-Bont, Millers Avenue, Brynmenyn Industrial Estate, Brynmenyn, Bridgend, CF32 9TD | | Map & Directions |
| Maple Windows & Doors | 01656 657747 | | 27 Maple Drive, Brackla, Bridgend, CF31 2PF | | Map & Directions |
| Royal Windows Manufacturing | 029 2064 0800 | | 14 Minny Street, Cardiff, CF24 4ER | | Map & Directions |
| Welsh Window Systems | 01446 749821 | | 2 Vere Street, Barry, CF63 2HX | | Map & Directions |
| D & P Windows | 01656 739861 | | Unit 7, Heol Ty Gwyn Industrial Estate, Maesteg, CF34 0BQ | | Map & Directions |
| Excelsior Windows Ltd | 029 2071 2300 | | Baron Lane, Penarth, CF64 3UA | | Map & Directions |
| Robert Spence | 029 2086 6784 | | 14 Monmouth Court, Caerphilly, CF83 2TG | | Map & Directions |
| P & J Badman | 029 2074 7178 | | 5 Rambler Close , Thornhill, Cardiff, CF14 9FH | | Map & Directions |
| Futureglaze Windows Ltd | 01443 423423 | | Unit 47, Gelli Industrial Estate, Gelli, Pentre, CF41 7UW | | Map & Directions |
| Phoenix Windows Ltd | 01685 811448 | | Hirwaun Road, Hirwaun, Aberdare, CF44 9HR | | Map & Directions |
| Kestrel Upvc Ltd | 029 2088 3520 | | Unit 3 Van Industrial Park, Van Road, Caerphilly, CF83 3EL | | Map & Directions |
| Warmaglaze Window Systems | 01443 757603 | | Church Street, Maerdy, Ferndale, CF43 4DB | | Map & Directions |
| Ultra Glass | 01443 441132 | | Unit 10, Ely Industrial Estate, Williamstown, Tonypandy, CF40 1RA | | Map & Directions |
| Warm Seal Windows | 029 2070 4355 | | 15 Milton Road, Penarth, CF64 2SW | | Map & Directions |
| G R M Windows Ltd | 01443 226987 | | Unit 7/8, Ely Valley Industrial Estate, Pontyclun, CF72 9DZ | | Map & Directions |
| P J Grace | 01443 687930 | | Flat 1, 121 Aberrhondda Road, Porth, CF39 0BA | | Map & Directions |
| Manor Windows & Conservatories | 029 2085 2338 | | Colliery Road, Llanbradach, Caerphilly, CF83 3QQ | | Map & Directions |
| Mark Franks | 01656 862039 | | Glanllyn, Heol-Y-Geifr, Pencoed, Bridgend, CF35 6UN | | Map & Directions |
| Dunraven Windows | 01656 743572 | | St. Davids House, Village Farm Industrial Estate, Heol Mostyn, Pyle, Bridgend, CF33 6BJ | | Map & Directions |
| A P T Windows | 01443 812004 | | Rear Of Library, High Street , Ystrad Mynach, Hengoed, CF82 7BB | | Map & Directions |
| Treharne Double Glazing | 01443 841267 | | 22 Parc Y Nant, Nantgarw, Cardiff, CF15 7TJ | | Map & Directions |
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