Window security grilles in Harrow

How much do window security grilles cost in Harrow?

Our guide range for window security grilles in Harrow is £414 to £954 including VAT (£345 to £795 plus VAT) per window, including fitting. The survey is free for new installations and your fixed price follows in writing.

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.

Choices you can make

Made to measure for the reveal, including bays and splayed reveals
Powder-coated in white, black or anthracite to sit with the frame colour
Anti-tamper fixings into masonry or a fabricated subframe
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

Fitting in Harrow and nearby

We can arrange window security grilles anywhere in Harrow, and in nearby Wembley, Northolt and Greenford. Tell us your postcode and we will offer dates.

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.

Typical places for this kind of grille include:

Outbuildings, workshops and garages with glazing
Flats with windows onto shared walkways
Rear windows facing alleys and gardens
Offices and shops with side or rear windows

Things to decide before you order

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.

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 England

England

Listed buildings and conservation areas

Listed buildings need listed building consent for works that affect their character, which can include internal grilles and their fixings. In conservation areas, councils look closely at anything fitted to the outside. We recommend speaking to the council's conservation officer before ordering.

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.

How it works

Send sizes or use the quote tool
Free survey at your Harrow address
Fixed price in writing
Made to measure and fitted

Window security grilles in Harrow: questions

Which areas near Harrow do you cover?

We can arrange work in Harrow and in nearby Wembley (2 miles), Northolt (3 miles) and Greenford (4 miles). Dates depend on installer availability.

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.

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 Harrow

Ready for a price? Use the form or call 0800 088 6248.