Window security grilles in Barnet

Window security grilles in Barnet: what will it cost?

Window security grilles in Barnet 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.

Specification at a glance

Fitted inside the glass by default; external options for recessed or plain openings
Lock positioned to clear window handles and restrictors
Anti-tamper fixings into masonry or a fabricated subframe
Quick-release escape handle for bedroom and upstairs windows
Powder-coated in white, black or anthracite to sit with the frame colour
Made to measure for the reveal, including bays and splayed reveals

Fitting in Barnet and nearby

Whether you are in central Barnet or at the edge of the EN5 district, we can arrange a survey. Nearby Potters Bar and Borehamwood are covered too.

London's buildings range from Victorian and Edwardian terraces and mansion blocks to post-war estates, with long high streets of ground-floor shops below flats.

Common openings for window security grilles:

Ground-floor and basement windows
Flats with windows onto shared walkways
Offices and shops with side or rear windows
Rear windows facing alleys and gardens

Getting the right window grille for your building

Colour

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

Depth in the reveal

Tracks need a few centimetres of flat reveal. Where the frame sits flush with the wall, the grille can be fixed to a slim subframe instead.

What the rules say in England

England

Grilles in rented homes

Landlords in England must keep rented homes free from serious hazards under the Housing Health and Safety Rating System, which includes fire. A grille that stops a tenant using an escape window can create a hazard, so grilles in rented homes should have keyless internal releases.

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 Barnet
Accept the fixed quote
Installation by installers working under our contract

Window security grilles in Barnet: questions

Can you survey in Barnet and nearby towns?

Yes. Surveys in Barnet, Potters Bar, Borehamwood and elsewhere in Greater London are booked around installer availability.

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.

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.

Window security grilles in nearby towns

Other grilles in Barnet

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