Window security grilles in Hertfordshire

What is the price of window security grilles in Hertfordshire?

Most window security grilles in Hertfordshire fall within £414 to £954 including VAT (£345 to £795 plus VAT) per window for supply and fitting. We confirm a fixed price in writing after a free survey, before anything is ordered.

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

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
Lock positioned to clear window handles and restrictors
Works with uPVC, aluminium, timber and steel windows
Retractable, fixed or removable designs

Covering Hertfordshire

We can arrange surveys and fitting anywhere in Hertfordshire, including Watford and Hemel Hempstead. Dates depend on installer availability. Choose your town below for local details.

Hertfordshire mixes the garden cities of Letchworth and Welwyn, post-war new towns such as Stevenage, and historic centres like St Albans.

This type of grille suits:

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

Towns in Hertfordshire

Questions we will ask at the survey

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.

Planning and safety in England

England

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.

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

Tell us about the opening
Survey and measuring
Written quote and lead time
Fitting, testing and handover

Window security grilles in Hertfordshire: questions

Which towns in Hertfordshire do you cover?

We can arrange work anywhere in Hertfordshire, including Watford, Hemel Hempstead, Stevenage, St Albans and Welwyn Garden City, and in other towns across the area.

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.

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.

Other grilles in Hertfordshire

Get a guide price now and book your free survey in Hertfordshire.