Patio and bifold door security glass in County Londonderry: what will it cost?
Budget £354 to £1,074 including VAT (£295 to £895 plus VAT) per pane for patio and bifold door security glass in County Londonderry, supplied and fitted. Larger panes, thicker makeups and difficult access cost more; the price is fixed in writing after the survey.
Patio and bifold door security glass means fitting large sealed units with a laminated pane into sliding, French or bifolding doors. These doors are usually the biggest glass at the back of the house and out of view, so making the glass hold when it is struck closes one of the easiest routes in.
What you can specify
- Glass lifters and enough installers for heavy panes
- Integral blind units replaced like for like where possible
- Security tape on externally beaded frames
- Roller, carriage and hinge adjustment after fitting
- Anti-lift and lock checks on sliding doors
- Low-E, argon and solar control glass options
Covering County Londonderry
We can arrange surveys and fitting anywhere in County Londonderry, including Coleraine and Derry. Dates depend on installer availability. Choose your town below for local details.
Londonderry's listed walled city and riverside offices, Coleraine's university-town centre and the north coast at Portstewart sit alongside the market towns of Magherafelt and Limavady.
Typical settings for patio and bifold door security glass:
- Sliding patio doors at the back of a house
- Doors hidden from the street by fences or hedges
- Ground-floor flats with doors onto terraces
- French doors onto gardens
Towns in County Londonderry
Getting the right glass for your building
Integral blinds
Units with blinds inside the glass can be made with a laminated pane, but lead times are longer.
Door hardware
Glass is only part of the picture. Worn rollers, missing anti-lift blocks or old locks are often worth fixing at the same visit.
What the rules say in Northern Ireland
Replacing glass in an existing frame
Building regulations in Northern Ireland are administered by the eleven councils' building control services. Replacing only the glass in an existing frame is generally treated as a repair, while replacing whole windows or doors can be controlled work, so check with building control first. New glass in a critical location should be safety glass under Part V.
Planning permission
Planning in Northern Ireland is handled by the eleven councils, which decide whether a new or altered shopfront needs permission; changing the glass in an existing frame usually does not. Bollards or barriers on a public footway need consent from the Department for Infrastructure's roads service.
How it works
- Send sizes or use the quote tool
- Free survey at your County Londonderry address
- Fixed price in writing
- Glass made, then fitted
Patio and bifold door security glass in County Londonderry: questions
Which towns in County Londonderry do you cover?
We can arrange work anywhere in County Londonderry, including Coleraine, Derry, Limavady and Magherafelt.
Is patio door glass already safety glass?
It should be, because doors are critical locations. Most is toughened, which is safe but not secure. Adding a laminated pane makes it both.
Can sliding doors be lifted out?
Older sliding doors without anti-lift blocks can be. We check for this at the survey and can fit blocks at the same visit.
Will laminated glass make my bifolds harder to open?
Units are slightly heavier. We adjust hinges, rollers and carriages after fitting so the doors run smoothly.
Other glazing in County Londonderry
- Laminated security glass
- Security glass for home windows
- Anti-ram-raid glazing
- Commercial reglazing
- Security secondary glazing
- Broken glass replacement
Ready for a price? Use the form or call 0800 088 6248.