French doors · County Antrim
Triple glazed French doors in Carrickfergus
Looking at triple glazed French doors for a home in Carrickfergus? We survey, quote and fit across County Antrim, and the BT38 postcode district is part of that.

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 Carrickfergus
In Carrickfergus, midday sun in late December sits around 12° high, with roughly 7 h 13 min of daylight. For windows facing north or shaded by neighbours, cutting heat loss matters more than solar gain; on open south-facing glass, ask about a higher solar-gain unit.
Guide prices in Carrickfergus
| 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
Northern Ireland sets replacement door limits through Technical Booklet F1 (2022): 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
The surveyor measures every opening, checks ventilation, escape windows and safety-glass zones, and talks through styles. Your written quote lists each item with its glass build-up and U-value, and the price is fixed for that specification.
- 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 Carrickfergus
Do I need planning permission?
Replacing an existing door on a house is normally permitted development. Making a new opening is a structural change that may need approval; flats and listed buildings have their own rules.
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 Carrickfergus?
In Northern Ireland, check with your council planning office before changing the style, material or size of a door, and always for listed buildings and flats. Check whether your street is in a conservation area or covered by an Article 4 direction before changing the style.
How long does it take to get triple glazed French doors fitted in Carrickfergus?
After the survey, typical manufacture time is 4 to 7 weeks, and a door is usually fitted in a day.
Nearby
Also near Carrickfergus: Holywood (9 km), Newtownabbey (9 km), Bangor, County Down (11 km) and Larne (15 km).
Other products in Carrickfergus
- 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 Carrickfergus: 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.
