Window security grilles in Northolt

How much should I budget for window security grilles in Northolt?

Our guide range for window security grilles in Northolt 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.

What goes into a window grille

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

Fitting in Northolt and nearby

Surveys in Northolt (UB5) are booked around installer availability. We also cover nearby Greenford (1 mile), Harrow (3 miles) and Southall (3 miles).

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.

Where window security grilles are most often used:

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

What to think about first

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.

Consents and safety: 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.

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.

How it works

Postcode and a few photos
On-site survey
Fixed written price
Fit, test and explain

Window security grilles in Northolt: questions

Do you cover Greenford as well as Northolt?

Yes. As well as Northolt, we can arrange surveys in nearby Greenford, Harrow and Southall, and elsewhere in Greater London.

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 Northolt

Start with a guide price online, then we survey and fix the price in writing.