Douglas Windows (PVCu) Ltd

Unit 9b Building 1, Central Park Mallusk, Newtownabbey, BT36 4FS

Gorteen, Belcoo, BT93 5ER

Meltham Joinery Works, New Street Meltham, Holmfirth, HD9 5NT

Coolatty, Smithborough, H18PF83

72 Kinturk Road, Coagh, Co. Tyrone

Newhall House, M7 Business Park, Newhall, Naas

71 Kinturk Road, Cookstown, BT80 0JD

1 Fernela Lane, Newtownabbey, BT36 6UY

Whitworth House, Unit 1 Westgate Business Park, Ballymount

Units 5/6 Greenhey Place, Greenhey Place, East Gillibrands, WN8 9SA