- Amdega Conservatories
- 0800 591523 - Darlington, County Durham, DL3 0PW
- Classique Windows & Conservatories
- 01642 361000 - 407 Norton Road, Stockton-on-Tees, Cleveland, TS20 2QQ
- Conservatory & Window World
- 01388 458088 - Watling Road, Bishop Auckland, County Durham, DL14 9AU
- Express Windows
- 01388 662945 - 2b Roman Wy Indust Est, Bishop Auckland, County Durham, DL14 9AW
- Guardian Windows & Conservatories
- 01429 292323 - 10 Jarsling House, Harbour Walk, Hartlepool, Cleveland, TS24 0XU
- Kensington Windows & Conservatories
- 0845 3736600 - 1 Forge Wy Cleveland Trading Est, Darlington, County Durham, DL1 2PJ
- Machin Conservatories
- 0870 7574481 - Faverdale, Darlington, County Durham, DL3 0PW
- Oakminster
- 01325 367652 - 166 Thompson Street East, Darlington, County Durham, DL1 3EW
- Prima Windows & Conservatories
- 01429 270008 - 12b Park Vw W Indust Est, Hartlepool, Cleveland, TS25 1PE
- Ultimate Windows & Conservatories Ltd
- 01642 619111 - 55 Bishopton Lane, Stockton-on-Tees, Cleveland, TS18 1PU
- Ivy House Conservatories
- 0191 5110262 - Taylors Fm, Stoneygate, Houghton Le Spring, Tyne And Wear, DH4 4NN
- Northside Windows & Conservatories
- 0191 3893795 - 6 Bede Terrace, Chester Le Street, County Durham, DH2 2AZ
- Premier Windows Doors & Conservatories
- 01642 616333 - 13 Grange Avenue, Stockton-on-tees, Cleveland, TS18 4LU
- Frostree Ltd
- 0800 585944 - 31 Station Street, Middlesborough, TS1 1SR
- Conservatory
- 01642 789561 - 115 High Street, Yarm, Cleveland, TS15 9BB
- Amdega Ltd
- 01325 468522 - Faverdale Industrial Estate, Darlington, County Durham, DL3 0PW
- PM Glazing
- 0845 2632294 - 18 Dorlonco Villas Meadowfield, Durham, DH7 8RZ
- Yarm Windows & Conservatories
- 01325 380913 - 10 Grange Road, Darlington, County Durham, DL1 5NG
- Emerald Windows & Conservatories
- 0191 3878881 - 4 Lucombe Close, Shiney Row, Houghton Le Spring, Tyne And Wear, DH4 7TN
- S & S Windows & Conservatories
- 01429 278742 - 4d Ullswater Road, Hartlepool, Cleveland, TS25 1UE
- JP Christie Conservatories
- 07803 333303 - 33 Woodlands Seaham, County Durham
- Harrison Brown Windows
- 01388 777606 - Unit 17 Furnace Ind Estate, Shildon, Durham, DL4 1QB
- Factory Direct Conservatories
- 0800 8048482 - Unit 4, Silverlink Business Park, Forge Way, Cleveland Industrial Estate, Darlington, County Durham, DL1 2PL