| A. Direct Windows And Conservatories Limited | 028 9042 8260 | | 8 Bangor Road, Holywood, BT18 0LQ |  Map & Directions |
| Economy Glass | 028 4176 4911 | | 24 School Road, Ballymartin, Newry, BT34 4PQ | | Map & Directions |
| Mourne Glass | 028 4176 3611 | | 27 Leestone Road, Kilkeel, Newry, BT34 4NW | | Map & Directions |
| Superseal Windows Ltd | 028 9446 5772 | | 11B Rathenraw Industrial Estate , Antrim, BT41 2SJ | | Map & Directions |
| Rightway Glass Glazing | 028 9127 0722 | | 19 Balloo Drive, Bangor, BT19 7QY | | Map & Directions |
| Superseal Windows Ltd | 028 9045 0554 | | 419-421 Newtownards Road, Belfast, BT4 1AQ | | Map & Directions |
| Fairco Mcilhagga Ltd | 028 9077 7713 | | 3 West Bank Road, Belfast, BT3 9JL | | Map & Directions |
| C T Improvements | 028 6772 1117 | | 53 Derryad, Lisnaskea, Enniskillen, BT92 0BX | | Map & Directions |
| Easiglaze | 028 9033 2813 | | Unit 10b, North Howard Street, Argyle Business Centre, Belfast, BT13 2AU | | Map & Directions |
| D G S Ltd | 028 9077 2477 | | Unit 2, West Bank Business P West Bank Drive, Belfast, BT3 9LA | | Map & Directions |
| Marjon Antrim Ltd | 028 9442 9368 | | Springfarm Industrial Estate, Antrim, BT41 4NZ | | Map & Directions |
| Douglass Glazing | 028 6772 1148 | | Drumgoon, Aghamore South, Lisnaskea, Enniskillen, BT92 0BH | | Map & Directions |
| Newry & Mayobridge Glazing Co | 028 3085 1305 | | 6 Chapel Hill, Mayobridge, Newry, BT34 2EX | | Map & Directions |
| Cassy Distributors Ltd | 028 4176 3277 | | 44 Newry Road, Mayobridge, Newry, BT34 2ET | | Map & Directions |
| Complete Window Systems | 028 7082 4355 | | 11 Ballywillin Crescent , Portrush, BT56 8GJ | | Map & Directions |
| Budget P V C Windows | 028 9145 3700 | | 24 Belfast Road, Bangor, BT20 3PU | | Map & Directions |
| Professional Window Systems | 028 7946 9111 | | 155 Creagh Road, Castledawson, Magherafelt, BT45 8EY | | Map & Directions |
| Regal Windows | 028 9336 7733 | | 13c Kilroot Park, Carrickfergus, BT38 7PR | | Map & Directions |
| Advanced Window & Conservatories | 028 7086 8216 | | 45 Glenkeen Road, Aghadowey, Coleraine, BT51 4BN | | Map & Directions |
| All Purpose Glazing | 028 7135 7222 | | Skeoge Industrial Estate, Beraghmore Road, Londonderry, BT48 8SE | | Map & Directions |
| Hillcrest Glass Ltd | 028 7181 4515 | | Campsie Industrial Estate , McLean Road , Eglinton, Londonderry, BT47 3XX | | Map & Directions |
| Mcilhatton & Co Ltd | 028 2766 5920 | | Ballybrakes Road, Ballybrakes Business Park, Ballymoney, BT53 6LW | | Map & Directions |
| T R Glass & Glazing | 028 7139 8927 | | 181 Berryhill Road, Dunamanagh, Strabane, BT82 0NB | | Map & Directions |
| Senator Windows | 028 3088 8990 | | 15 Glenmore Road, Mullaghbawn, Newry, BT35 9YE | | Map & Directions |
| Quick Fit Windows | 028 9077 1795 | | 470-476 Shore Road, Belfast, BT15 4HD | | Map & Directions |
| Discount Window Systems | 028 4062 2251 | | 10 Bridge Street, Banbridge, BT32 3JS | | Map & Directions |
| Bh Glazing Ltd | 028 7138 2322 | | 18 Newtown Place , Strabane, BT82 8DS | | Map & Directions |
| O M A Elite Windows | 028 8077 1358 | | 48 Greencastle Road, Mountfield, Omagh, BT79 7QH | | Map & Directions |
| John Kelly & Sons Ltd | 028 9127 1339 | | 96 Abbey Street, Bangor, BT20 4JB | | Map & Directions |
| Aufwiedersehen Window Systems | 028 9036 9280 | | 21-27 Mill Road, Newtownabbey, BT36 7BA | | Map & Directions |
| North West Joinery Co | 028 7135 3675 | | 16 Larkhill, Londonderry, BT48 8AT | | Map & Directions |
| First Choice Windows & Conservatories | 028 9182 2229 | | 59 Milecross Road, Newtownards, BT23 4SR | | Map & Directions |
| Windows 2000 Ltd | 028 7137 7949 | | 19 Upper Galliagh Road , Londonderry, BT48 8LW | | Map & Directions |
| Village Windows | 028 7776 6699 | | 88 Dowland Road, Limavady, BT49 0HR | | Map & Directions |
| Antrim Aluminium & Glass | 028 9446 6887 | | 116 Seven Mile Straight, Muckamore, Antrim, BT41 4QT | | Map & Directions |
| Glas-Seal Ltd | 028 9756 2932 | | 80 Belfast Road, Ballynahinch, BT24 8EB | | Map & Directions |
| Discount Windows | 028 9061 1616 | | 114 Andersonstown Road, Belfast, BT11 9BX | | Map & Directions |
| R & M Windows | 028 9446 3700 | | Unit E7, Enkalon Industrial Estate, Randalstown Road, Antrim, BT41 4LD | | Map & Directions |
| Priceless Windows Ltd | 028 3086 8165 | | 12 Silverbridge Road, Silverbridge, Newry, BT35 9LE | | Map & Directions |
| Elite Window Systems | 028 6632 0280 | | Old Henry Street, Enniskillen, BT74 7JX | | Map & Directions |
| F J Mccrubb | 028 9442 9444 | | 63 Brantwood Gardens, Antrim, BT41 1HR | | Map & Directions |
| Knightsbridge Windows & Door | 028 9146 0676 | | 16 Marlo Heights, Bangor, BT19 6NQ | | Map & Directions |
| Ventrolla | 028 9064 6419 | | 1 Ardmore Avenue, Ormeau, Belfast, BT7 3HD | | Map & Directions |
| Select Frames & Glass Ltd | 028 9086 8791 | | 129-133 Whitewell Road, Newtownabbey, BT36 7EX | | Map & Directions |
| Superior Windows | 028 7032 9353 | | 3 Loguestown Court, Coleraine, BT52 2HS | | Map & Directions |
| Prestige Windows | 028 9034 2395 | | 13 Ballyhenry Road, Newtownabbey, BT36 5AX | | Map & Directions |
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