How much should I budget for retractable security grilles in County Londonderry?
Budget £414 to £1,554 including VAT (£345 to £1,295 plus VAT) per opening for retractable security grilles in County Londonderry, supplied and fitted. Size, number of leaves, colour and access all move the price, which is fixed in writing after the survey.
A retractable security grille is a steel or aluminium lattice of vertical bars joined by scissor links that runs in a top and bottom track. Drawn across a window or door it forms a locked barrier; slid back, it folds into a narrow stack at the side so the opening is fully usable.
Choices you can make
- Vertical bars with diagonal scissor links that lock rigid when closed
- Single, double or multi-leaf layouts for wide openings
- Key-operated lock box on the leading edge, with optional extra locking points
- Galvanised or powder-coated steel, or aluminium for lighter duty
- Folds into a stack typically around a sixth of the opening width
- Quick-release internal handle available where a window must stay usable for escape
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.
Where retractable security grilles are most often used:
- Stockrooms and cash offices
- Office receptions and glazed partitions
- Shop windows and glazed shop entrances
- Back doors, French doors and patio doors
Towns in County Londonderry
What to think about first
Bottom track or no bottom track
A bottom track gives the most rigid grille but can be a trip point across a doorway. Low-profile and removable floor tracks are available for doors.
Security level
Domestic grilles suit most homes. Shops, pharmacies and high-value stock may justify heavier sections or a third-party certified product.
Consents and safety: Northern Ireland
External grilles and planning
Planning in Northern Ireland is handled by the eleven councils. External grilles and shutters on commercial buildings normally need planning permission, and councils generally prefer internal, see-through security in town centres.
Grilles inside the glass
A grille fitted inside the glass does not normally need planning permission in Northern Ireland, as it does not materially change the outside of the building. If the building is listed, listed building consent may still be needed.
How it works
- Postcode and a few photos
- On-site survey
- Fixed written price
- Fit, test and explain
Retractable 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.
Can a retractable grille be fitted inside the window?
Yes, and that is how most are fitted. The tracks fix into the window reveal or to a timber or steel subframe, so the grille sits between the glass and the room.
Will a grille stop me opening my windows?
No. An internal grille sits inside the reveal, so you can open the window as normal when the grille is folded back, and usually with it closed if there is enough depth between grille and glass.
How long does a retractable grille take to fit?
Most single windows or doors are fitted in an hour or two once the made-to-measure grille arrives. A shopfront or several openings may take a day.
Other grilles in County Londonderry
- French door grilles
- Bespoke security grilles
- Removable security grilles
- Grille lock replacement and upgrades
- Vacant property grilles and screens
- Roller security grilles
Start with a guide price online, then we survey and fix the price in writing.
