- Postcode district
- DH1
- County or region
- County Durham
- Survey
- Free for new and replacement doors
- Daylight
- 7 h 13 min (December) to 17 h 19 min (June)
- Nearby
- Chester-le-Street (9 km north), Houghton-le-Spring (10 km north-east), Stanley (13 km north-west)
Choose a door type for Durham
Each link opens local guide prices and details for Durham.
Sunlight, glass and orientation in Durham
Sun angles matter for big glazed doors. Around Durham, midday sun reaches about 59° in summer and drops to about 12° in winter. That low winter sun is free heat through south-facing glass; high summer sun is easier to shade with a roof overhang, and solar-control glass helps where there is none.
What happens after you enquire
Every job in the DH1 district follows the same steps: price online, survey, written quote, made-to-measure manufacture and fitting, with the compliance certificate sent to you.
Approvals in England
In England, a replacement sliding door is a controlled fitting under the Building Regulations. In an existing home, a door with more than 60% glazing must reach a U-value of 1.4 W/m²K or better (or a Doorset Energy Rating of band C) under Approved Document L, and glass in doors must be safety glazing under Approved Document K. We arrange compliance through a competent person scheme installer or by notifying Building Control, and you receive the certificate.
Sliding doors in Durham: questions
Who fits the doors in Durham?
Doors are fitted by installers we appoint and manage under our contract, so your contract and guarantees stay with us. The same surveyed specification goes from the quote to the factory to the fitters.
Can you widen my opening in Durham?
Yes. We can form or widen an opening for a larger sliding door, with structural calculations, a steel beam and English approvals arranged. That work is quoted alongside the door.
Do you cover villages around Durham?
Yes. We cover Durham and the surrounding DH1 district, as well as Chester-le-Street, Houghton-le-Spring and Stanley. If you are unsure, enter your postcode in the guide price tool.