Retractable security grilles in Harrow

How much do retractable security grilles cost in Harrow?

Our guide range for retractable security grilles in Harrow is £414 to £1,554 including VAT (£345 to £1,295 plus VAT) per opening, including fitting. The survey is free for new installations and your fixed price follows in writing.

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.

What you can specify

Quick-release internal handle available where a window must stay usable for escape
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
Top-hung or bottom-running versions to suit the floor or sill
White, black and anthracite as standard, other RAL colours to order

Fitting in Harrow and nearby

We arrange surveys and fitting in Harrow and across the HA1 postcode district, as well as in nearby Wembley (2 miles) and Northolt (3 miles). Dates depend on installer availability.

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:

Stockrooms and cash offices
Back doors, French doors and patio doors
Shop windows and glazed shop entrances
Ground-floor windows of homes and flats

Things to decide before you order

Security level

Domestic grilles suit most homes. Shops, pharmacies and high-value stock may justify heavier sections or a third-party certified product.

Inside or outside the glass

Inside is the norm: it is protected from weather, keeps the street view unchanged and usually avoids planning issues. Outside fitting suits recessed doorways and openings with no internal depth.

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

Retractable security grilles in Harrow: questions

Can you survey in Harrow and nearby towns?

Yes. Surveys in Harrow, Wembley, Northolt and elsewhere in Greater London are booked around installer availability.

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.

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.

Do retractable grilles need a bottom track?

Most do, because the bottom track stops the grille being pushed out of line. On doorways a low or recessed track can be used to reduce the trip hazard, and some top-hung designs work without one on smaller openings.

Retractable security grilles in nearby towns

Other grilles in Harrow

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