French doors · Dumfries and Galloway
Triple glazed French doors in Castle Douglas
From the first measure to the handover pack, we handle triple glazed French doors for homes in Castle Douglas and the rest of Dumfries and Galloway.

A warmer kitchen-diner: less cold glass by the table. French doors are a pair of doors that open together, with no fixed centre post, usually leading to a garden or patio.
Winter light and glass choice in Castle Douglas
By midsummer Castle Douglas has about 17 h 22 min of daylight, but in December only around 7 h 11 min, with the noon sun at about 12°. Triple glazing keeps more heat in during those long, dark months; big south and west windows may suit solar-control glass for summer.
Guide prices in Castle Douglas
| Guide | Supply and fit, inc VAT |
|---|---|
| uPVC French doors about 1.5 m wide | £1,295 – £1,695 |
| uPVC French doors with side panels about 2.4 m wide | £1,895 – £2,395 |
| Aluminium French doors about 1.8 m wide | £2,895 – £3,695 |
Guide prices. Your written quote after the free survey fixes the price for the specification shown.
Rules for french doors in Scotland
Scotland sets replacement door limits through the Building Standards Technical Handbook (Domestic), section 6: 1.6 W/m²K. Replacing a door or window, frame and all, does not need a building warrant, but the work must still meet the building standards.
Planning: A replacement door on a house that looks similar to the existing one is generally permitted development; check with your council for flats and conservation areas, and listed buildings need listed building consent.
How it works
After the free survey you get a written quote naming the frame system, the glass build-up and the whole-window U-value for every item. Windows are made to order, then fitted, sealed and made good, one opening at a time.
- Every opening measured, including escape and vent needs
- Frames rated for the weight of triple glass
- Old windows removed and taken away
- Each opening closed up the same day
Questions from Castle Douglas
Are French doors secure?
Modern French doors lock at multiple points on both leaves. We specify PAS 24 tested doorsets where available.
How much are triple glazed French doors?
Our guide starts at £1,295 fitted for uPVC and £2,895 for aluminium, inc VAT.
Do I need permission for triple glazed French doors in Castle Douglas?
In Scotland, a replacement door on a house that looks similar is generally permitted development; check with your council for flats and conservation areas, and listed buildings need consent. Check whether your street is in a conservation area or covered by an Article 4 direction before changing the style.
Do you fit triple glazed French doors in Castle Douglas?
Yes. We arrange surveys and fitting in Castle Douglas and across Dumfries and Galloway. Send your postcode and the windows or doors you want replaced, and we will book a free survey.
Nearby
Nearby towns on our list include Dumfries (25 km), Lockerbie (42 km), Annan (43 km) and Stranraer (70 km).
Other products in Castle Douglas
- uPVC windows
- Aluminium windows
- Timber windows
- Alu-clad timber windows
- Casement windows
- Flush casement windows
- Tilt and turn windows
- Sash windows
- Bay and bow windows
- Fixed and picture windows
- Composite front doors
- Sliding patio doors
- Bifold doors
- Glass-only replacement
- Acoustic triple glazing
- Security glazing
- Whole-house replacement
- New builds and self-builds
- Period homes and conservation areas
- Flats and apartments
- Passivhaus and EnerPHit
French doors in Castle Douglas: book your free survey
Written quote fixed for the specification, after a free survey. No building warrant is needed for a straight replacement in Scotland; we fit to the building standards and give you a written handover pack.
