| First Class Trade Windows | 0191 384 8818 | | Graham House, Dragon Lane, Dragonville Industrial Estate, Durham, DH1 2DX |  Map & Directions |
| Anglian Home Improvements | 0191 386 9517 | | Metcalfe House, North Road, Durham, DH1 4UE | | Map & Directions |
| The Trade Window Centre | 0191 384 9991 | | Dragon Lane, Durham, DH1 2XD | | Map & Directions |
| A & A Window Components Ltd | 0191 383 0202 | | Unit 6A, Belmont Industrial Estate, Durham, DH1 1TN | | Map & Directions |
| Abacus Windows & Conservatories | 0191 384 9991 | | 37 Dragon Lane, Dragonville Industrial Park, Durham, DH1 2XW | | Map & Directions |
| Newbigin Home Improvements Ltd | 0191 410 9966 | | 8-9 Harraton Terrace, Durham Road, Birtley, Chester Le Street, DH3 2QG | | Map & Directions |
| Optimum | 0191 389 4213 | | Unit 10, Station Road, Turn Park, Chester Le Street, DH3 3DY | | Map & Directions |
| Marshall Modern Windows | 01207 239568 | | 72 Southfields, Stanley, DH9 7PF | | Map & Directions |
| Regency | 0191 385 8888 | | 27-28 Hindsons Crescent North, Houghton Le Spring, DH4 4SA | | Map & Directions |
| Coxhoe Timber Services Ltd | 0191 377 0426 | | 29 Church Street, Coxhoe, Durham, DH6 4HE | | Map & Directions |
| Bargain Windows | 01207 570809 | | Leanda, Ewehurst Crescent, Dipton, Stanley, DH9 9JA | | Map & Directions |
| Durham Window & Door Centre Ltd | 0191 378 0148 | | 27 Brecken Way, Meadow Green Estate, Meadowfield, Durham, DH7 8UZ | | Map & Directions |
| Geoff Nichol | 01207 590954 | | 10 Church Street, Leadgate, Consett, DH8 6DY | | Map & Directions |
| B & R Glazing Co Ltd | 0800 975 9420 | | 1a John Street North, Meadowfield, Durham, DH7 8RS | | Map & Directions |
| D.G.R Double Glazing Repairs | 0191 512 6869 | | 4 Buttsfield Terrace, Penshaw, Houghton Le Spring, DH4 7HW | | Map & Directions |
| Asa Fabricators | 01207 503222 | | Unit 8D, Number One Industrial Estate , Consett, DH8 6SS | | Map & Directions |
| View Windows & Property Repairs | 01207 234542 | | 12-16 West Road, Stanley, DH9 8HU | | Map & Directions |
| Calendar Windows Ltd | 0191 378 2318 | | Littleburn Industrial Estate, Rosebay Road, Durham, DH7 8HR | | Map & Directions |
| Karina Trade Frames | 0191 517 3360 | | Elemore Vale, Easington Lane, Houghton Le Spring, DH5 0QT | | Map & Directions |
| Station Windows | 0191 377 2608 | | The Old Goods Yard, Commercial Road West, Coxhoe, Durham, DH6 4HJ | | Map & Directions |
| Millbrook Joinery | 0191 584 8898 | | 30 Brookside, Houghton Le Spring, DH5 9NW | | Map & Directions |
| Clayton Glass Co Ltd | 01207 280511 | | Unit 8, Ever Ready Industrial Estate, Tanfield Lea, Stanley, DH9 9YA | | Map & Directions |
| Derwentside Glass & Double Glazing | 01207 571400 | | Front Street , Dipton, Stanley, DH9 9DF | | Map & Directions |
| Peter Haney Ltd | 01207 583264 | | Peter Haney Ltd, Hownsgill Drive, Consett, DH8 9HU | | Map & Directions |
| C & S Windows & Doors | 0191 388 2244 | | 3 Bernard Terrace, Pelton Fell, Chester Le Street, DH2 2RD | | Map & Directions |
| Lyons Windows Doors & Conservatories Ltd | 0191 526 3466 | | Unit 5+6, Hetton Lyons Industrial Estate , Hetton-le-Hole, Houghton Le Spring, DH5 0RH | | Map & Directions |
| Emerald Windows and Conservatories | 0191 584 4224 | | 6 Goodrich Close, Philadelphia, Houghton Le Spring, DH4 4XJ | | Map & Directions |
| Clearview Windows Ltd | 0191 584 6770 | | Millers Hill, Houghton Le Spring, DH4 7AJ | | Map & Directions |
| Clearview Windows Ltd | 0191 584 6770 | | 7 New Herrington Industrial Estate, Catherine Road, Houghton Le Spring, DH4 7BG | | Map & Directions |
| Windows Elite | 0191 388 9800 | | 19 Stella Gill Industrial Estate, Pelton Fell, Chester Le Street, DH2 2RG | | Map & Directions |
| A J K | 0191 378 4436 | | 22 Gardners Place, Langley Moor, Durham, DH7 8XZ | | Map & Directions |
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