- Postcode district
- BS35
- County or region
- Gloucestershire
- Survey
- Free for new and replacement doors
- Daylight
- 7 h 48 min (December) to 16 h 40 min (June)
- Nearby
- Yate (10 km south-east), Chepstow (11 km west), Lydney (13 km north)
Door types available in Thornbury
Pick a door type for prices, fitting times and approvals in Thornbury.
Light and sun in Thornbury
Daylight in Thornbury runs from about 7 h 48 min in December to 16 h 40 min in June, with the noon sun at roughly 15° and 62° respectively. Use that to choose your glass: standard low-E double glazing for north and east elevations, and consider solar-control or triple glazing for sunny south and west walls.
From guide price to fitted door in Thornbury
Every job in the BS35 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 Thornbury: questions
Who fits the doors in Thornbury?
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 Thornbury?
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.
How much are sliding doors in Thornbury?
Guide prices are the same across mainland Britain. A 2.4 m wide aluminium door is a guide £4,295–£5,295, fitted, including VAT; uPVC starts from £1,695. Your exact price is fixed after survey.