Bespoke security grilles

What are bespoke security grilles?

A bespoke security grille is designed and fabricated for one particular opening, such as an arched window, a curved bay, a very large screen or a period building where a standard grille would look wrong. It is measured on site, drawn up and made to suit.

Not every opening suits an off-the-shelf grille. Arched heads, splayed reveals, stone mullions and listed interiors all need a design that respects the building and still gives real security.

We survey, measure and photograph the opening, agree the design and finish, and have the grille fabricated to those dimensions. Decorative bar work, slimmer sections, matched colours and hidden fixings are all possible.

How much do bespoke security grilles cost?

Our guide range is £474 to £3,594 including VAT (£395 to £2,995 plus VAT) per opening, supplied and fitted. The exact figure depends on size, type, finish and locking, and your fixed price is confirmed in writing after the free survey. See all grille prices.

Specification and options

Arched, curved, raked and odd-shaped grilles
Decorative bar patterns and scroll work
Slim sections for period and listed buildings
Hidden or discreet fixings
Any RAL colour, galvanised or both
Retractable, fixed, removable or hinged in bespoke shapes
Design drawing agreed before fabrication
Very large or multi-section screens

Where bespoke security grilles are used

Arched and Gothic windows
Listed and period buildings
Churches and community halls
Feature windows and atriums
Oversized commercial openings

What to decide before you order

Design approval

We agree a drawing showing bar layout, sections and finish before anything is made.

Consents

Listed buildings and conservation areas may need consent; bespoke designs are often how consent is won.

Lead time

Bespoke grilles take longer than standard ones because each is drawn and made individually.

Budget

Decorative work costs more than plain bars. We can price plain and decorative options side by side.

Rules across the UK

The rules on planning, listed buildings and fire safety differ between England, Wales, Scotland and Northern Ireland. These are the points most relevant to bespoke security grilles; local pages show the version for your nation.

England (similar principles apply in Wales, Scotland and NI)

External grilles and planning

External grilles and shutters on shops and other commercial buildings normally need planning permission from the local council because they change the building's appearance. Many councils' shopfront guides favour internal, open-lattice grilles, particularly in conservation areas.

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

Tell us what needs securing

Use the quote tool or form, or call. Sizes and a couple of photos help us give a guide price straight away.

Free survey

A surveyor measures every opening, checks the walls and fixings, and talks through type, colour and locks.

Fixed price in writing

You get a written quote with the grille schedule, the price and the lead time. Nothing is ordered until you accept.

Made, fitted and handed over

Grilles are made to measure, fitted by installers working under our contract with you, tested and explained.

Bespoke security grilles: questions

How much do bespoke grilles cost?

Bespoke grilles range from around £395 plus VAT (£474 inc VAT) for a small shaped window to £2,995 plus VAT (£3,594 inc VAT) or more for large or decorative work. Each is priced from the survey and design.

Can you make a grille for an arched window?

Yes. Fixed and removable grilles can follow the arch exactly, and retractable grilles can be fitted below the springing line with a fixed arched panel above.

Can a grille be designed for a listed building?

Yes. Slim sections, matched colours and minimal fixings help, but listed building consent is still needed for works that affect the building's character.

Can you copy an existing grille design?

We can make a grille in a similar style for a matching window. We do not copy other firms' registered designs.

How long do bespoke grilles take?

Longer than standard grilles because each is drawn and fabricated individually. The lead time is confirmed with the quote.

Can bespoke grilles still be retractable?

Yes, within limits. Retractable grilles need straight tracks, so curved or arched parts are usually fixed.

Find bespoke security grilles near you

Choose your county or region for local information and the rules that apply where you are.

Get your free quote