- ADG Trade Frames (Manufacturing) (Address: Unit 2, Pennywell Business Centre, Portsmouth Rd, Sunderland SR4 9AR)
Location: DurhamCategory: Upvc Windows
Location: DurhamCategory: Upvc Windows
- Quality Trade Windows (Gateshead) Ltd (Address: 251a, Dukesway, Team Valley Trading Estate, Gateshead NE11 0PZ)
Location: DurhamCategory: Upvc Windows
Location: DurhamCategory: Upvc Windows
- P & P Windows (Address: 2, Bracken Hill, South West Industrial Estate, Peterlee SR8 2LS)
Location: DurhamCategory: Upvc Windows
Location: DurhamCategory: Upvc Windows
- Premier Aluminium Services Ltd (Address: 3, Wilden Road, Pattinson Industrial Estate, Washington NE38 8QB)
Location: DurhamCategory: Upvc Windows
Location: DurhamCategory: Upvc Windows
- I C Davison (Address: Bankfoot Works, Milton Street, Crook DL15 9JJ)
Location: DurhamCategory: Upvc Windows
Location: DurhamCategory: Upvc Windows
- Advanced Windows & Conservatories (Address: 1 The Brambles, Chester Le Street DH3 1RT)
Location: DurhamCategory: Upvc Windows
Location: DurhamCategory: Upvc Windows
- ADG Trade Frames (Address: Unit 2, Pennywell Business Centre, Sunderland SR4 9AR)
Location: DurhamCategory: Upvc Windows
Location: DurhamCategory: Upvc Windows
- A1 ENERGY EFFICIENT WINDOWS (Address: 31 Albert Drive, Gateshead NE9 6EH)
Location: DurhamCategory: Upvc Windows
Location: DurhamCategory: Upvc Windows
- Advanced Windows (Address: 7 Whitworth Terrace, Spennymoor DL16 7LD)
Location: DurhamCategory: Upvc Windows
Location: DurhamCategory: Upvc Windows
- Washington Windows & Doors (Address: 12 Pinewood Avenue, Washington NE38 9AY)
Location: DurhamCategory: Upvc Windows
Location: DurhamCategory: Upvc Windows
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