How much do window security grilles cost in County Londonderry?
Window security grilles in County Londonderry typically cost £414 to £954 including VAT (£345 to £795 plus VAT) per window, supplied and fitted. Use the quote tool for a guide figure, then we survey and confirm a fixed price.
A window security grille is a steel barrier fitted across a window so that breaking the glass no longer gives a way in. It can be retractable, fixed or removable, and is most often fitted inside the reveal where it is protected and barely noticed from outside.
What you can specify
- Retractable, fixed or removable designs
- Quick-release escape handle for bedroom and upstairs windows
- Fitted inside the glass by default; external options for recessed or plain openings
- Lock positioned to clear window handles and restrictors
- Works with uPVC, aluminium, timber and steel windows
- Anti-tamper fixings into masonry or a fabricated subframe
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.
County Londonderry centres on Derry's walled city and Victorian streets, with Coleraine and Limavady further east.
Typical places for this kind of grille include:
- Outbuildings, workshops and garages with glazing
- Rear windows facing alleys and gardens
- Flats with windows onto shared walkways
- Ground-floor and basement windows
Towns in County Londonderry
Things to decide before you order
Colour
White disappears against white frames, while black or anthracite suits darker frames and period sash windows.
Escape requirements
If the window is a designated escape window, the grille must open from inside without a key or tool. We fit quick-release locks for these.
Rules that apply in Northern Ireland
Listed buildings and conservation areas
Listed buildings in Northern Ireland need listed building consent for works affecting their character, with the council deciding and the Department for Communities' Historic Environment Division advising. Conservation areas bring extra scrutiny of external changes.
Bedroom and escape windows
Fire safety in new building work in Northern Ireland is covered by the Building Regulations (Northern Ireland) 2012 and Technical Booklet E. Where a room relies on a window for escape, nothing fitted over it should stop it being used. We only fit grilles over escape windows with a keyless internal release.
How it works
- Send sizes or use the quote tool
- Free survey at your County Londonderry address
- Fixed price in writing
- Made to measure and fitted
Window security grilles 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.
Are window grilles safe in a bedroom?
They can be, provided the grille has a release that opens from inside without a key. Bedroom and upstairs windows often have to serve as escape routes, so we will not fit a key-only grille over a window you need for escape.
Will a grille damage my window frame?
No. Grilles fix to the wall reveal or a subframe, not to the window itself, so the frame and its warranty are unaffected.
Do grilles work on bay windows?
Yes. A bay is usually treated as separate grilles for each face, or one grille following the bay on a curved or angled track.
Other grilles in County Londonderry
- Front door security gates
- Patio and bifold door grilles
- Bespoke security grilles
- Retractable security grilles
- Hinged security gates
- Bi-folding security gates
Ready for a price? Use the form or call 0800 088 6248.