Flats and apartments · County Londonderry
Triple glazing for flats and apartments in Derry
Homes in Derry can have flat and apartment triple glazing supplied and fitted, with surveys arranged across County Londonderry including BT47.
Specs and drawings ready for whoever approves them. Before replacing windows in a flat, check two things.
Winter light and glass choice in Derry
On the shortest day, Derry gets about 7 h 10 min of daylight and the midday sun reaches only about 12° above the horizon. Low winter sun means north-facing rooms here gain little solar heat, which is where triple glazing’s lower heat loss helps most.
Guide prices in Derry
| Guide | Supply and fit, inc VAT |
|---|---|
| One window medium uPVC window, fitted from inside | £945 – £1,195 |
| 2-bed flat 5 medium windows | £4,595 – £5,695 |
| 2-bed flat, aluminium 5 medium windows | £7,495 – £9,295 |
Guide prices. Your written quote after the free survey fixes the price for the specification shown.
Rules for flats and apartments in Northern Ireland
The rules for replacement windows in Northern Ireland are set by Technical Booklet F1 (2022): 1.6 W/m²K, or a Window Energy Rating of band C or better. Replacing windows or 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 windows or doors, and always for listed buildings, conservation areas and flats.
How it works
We start with a survey, not a sales pitch: measurements, the structure above any bays, trickle-vent needs and escape windows. The quote that follows fixes the price, and anything unexpected on the day is agreed with you first.
- Free survey and a written quote fixed for the specification
- Glass build-up and whole-window U-value on every quote
- Written handover pack at the end of the job
- Guarantees on frames, units and fitting in writing
Questions from Derry
What about tall blocks?
Higher-risk buildings (18 m or 7 storeys and over in England) have extra building safety requirements. Talk to your building’s accountable person first.
Is triple glazing good for a flat on a busy road?
Yes, especially with an acoustic laminated pane, which makes the bigger difference to noise.
Do I need permission for flat and apartment triple glazing in Derry?
In Northern Ireland, check with your council planning office before changing the style, material or size of windows, 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 flat and apartment triple glazing fitted in Derry?
After the survey, typical manufacture time is 4 to 7 weeks, and most homes are fitted in 1 to 4 days.
Nearby
We also cover nearby 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
- French 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
- Passivhaus and EnerPHit
Flats and apartments 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.