French doors · County Londonderry
Triple glazed French doors in Derry
We arrange surveys and fitting of triple glazed French doors in Derry and the BT47 area, with a written, fixed quote after a free survey.
uPVC or aluminium French doors, fitted with multi-point locks. 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 Derry
Winter days in Derry are short: about 7 h 10 min of daylight on 21 December, with the sun peaking near 12°. That low angle reaches deep into south-facing rooms, so we match the glass to each elevation rather than using one spec for the whole house.
Guide prices in Derry
| 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 Northern Ireland
In Northern Ireland, replacement external doors must meet 1.8 W/m²K. Replacing external doors does not need full plans or a building notice, but the work must still comply; enlarging an opening or other structural change needs building control approval.
Planning: Check with your council planning office before changing the style, material or size of doors, and always for listed buildings, conservation areas and flats.
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 Derry
How much are triple glazed French doors?
Our guide starts at £1,295 fitted for uPVC and £2,895 for aluminium, inc VAT.
Are French doors secure?
Modern French doors lock at multiple points on both leaves. We specify PAS 24 tested doorsets where available.
Do you fit triple glazed French doors in Derry?
Yes. We arrange surveys and fitting in Derry and across County Londonderry. Send your postcode and the windows or doors you want replaced, and we will book a free survey.
How long does it take to get triple glazed French doors fitted in Derry?
After the survey, typical manufacture time is 4 to 7 weeks, and a door is usually fitted in a day.
Nearby
Nearby towns on our list include Strabane (22 km), Limavady (24 km), Coleraine (44 km) and Omagh (44 km).
Other products in Derry
- 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 Derry: book your free survey
Written quote fixed for the specification, after a free survey. No building notice is needed for a straight replacement in Northern Ireland; we fit to the regulations and give you a written handover pack.