Window security grilles in Sevenoaks

Window security grilles in Sevenoaks: what will it cost?

As a guide, window security grilles in Sevenoaks cost £414 to £954 including VAT (£345 to £795 plus VAT) per window, supplied and fitted. The exact figure depends on size, type, finish and locking, and is confirmed in writing after the free survey.

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 goes into a window grille

Retractable, fixed or removable designs
Lock positioned to clear window handles and restrictors
Anti-tamper fixings into masonry or a fabricated subframe
Made to measure for the reveal, including bays and splayed reveals
Powder-coated in white, black or anthracite to sit with the frame colour
Quick-release escape handle for bedroom and upstairs windows

Fitting in Sevenoaks and nearby

Surveys in Sevenoaks (TN13) are booked around installer availability. We also cover nearby Tonbridge (6 miles), Swanley (9 miles) and Tunbridge Wells (10 miles).

Kent ranges from Medway's Victorian terraces and Thanet's seaside towns to listed medieval centres such as Canterbury and Rochester.

Common openings for window security grilles:

Rear windows facing alleys and gardens
Flats with windows onto shared walkways
Ground-floor and basement windows
Outbuildings, workshops and garages with glazing

Getting the right window grille for your building

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.

Colour

White disappears against white frames, while black or anthracite suits darker frames and period sash windows.

What the rules say in England

England

Bedroom and escape windows

Approved Document B (fire safety) expects many habitable rooms in houses, especially first-floor rooms, to have an emergency escape window with an unobstructed opening of at least 0.33 m², at least 450 mm high and 450 mm wide, with the bottom of the opening no more than 1,100 mm above the floor. We only fit grilles over escape windows with a release that opens from inside without a key.

Grilles inside the glass

A grille fitted inside the glass does not normally need planning permission, because it does not materially change how the building looks from outside. If the building is listed, listed building consent may still be needed.

How it works

Guide price online or by phone
Survey in Sevenoaks
Accept the fixed quote
Installation by installers working under our contract

Window security grilles in Sevenoaks: questions

Which areas near Sevenoaks do you cover?

We can arrange work in Sevenoaks and in nearby Tonbridge (6 miles), Swanley (9 miles) and Tunbridge Wells (10 miles). Dates depend on installer availability.

Should window grilles go inside or outside?

Inside in most cases. Internal grilles avoid weathering, are harder to attack, keep the outside of the building unchanged and rarely need planning permission. External grilles suit openings with no internal depth.

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.

Can I still open the window with a grille fitted?

With a retractable or removable grille, yes. Many fixed internal grilles also leave room to open the sash or casement behind them.

Window security grilles in nearby towns

Other grilles in Sevenoaks

Tell us about your window grille and we will come back with a guide price.