Blast-resistant glazing in Greater London

What should blast-resistant glazing cost in Greater London?

Budget £450 to £1,495 plus VAT (£540 to £1,794 inc VAT) per m² for blast-resistant glazing in Greater London, supplied and fitted. Larger panes, thicker makeups and difficult access cost more; the price is fixed in writing after the survey.

Blast-resistant glazing is laminated glass fitted in a frame and fixing system designed to stay in the opening, or fail safely, when hit by the pressure wave from an explosion. Its purpose is to stop glass becoming high-speed fragments, which cause most injuries in a blast, and it is designed from a threat assessment rather than chosen off the shelf.

Glass and fitting options

Work planned from the threat assessment and engineer's design
Deep-bite frames and structural silicone or mechanical retention
Manufacturer's test evidence supplied with your quote
Anti-shatter film with edge-retention systems for existing windows
Sealed units with a laminated inner pane
Glazing classed to BS EN 13541 or tested to ISO 16933 and 16934

Covering Greater London

We can arrange surveys and fitting anywhere in Greater London, including Central London and Islington. Dates depend on installer availability. Choose your town below for local details.

Greater London has every kind of glazing, from Georgian sashes and Victorian bays in conservation areas to high-street shopfronts, office curtain walling and new-build flats.

Good candidates for blast-resistant glazing:

Government, council and civic buildings
Embassies, courts and police premises
Laboratories and industrial sites with process risks
Offices in city centres and near potential targets

Towns in Greater London

Before the glass is ordered

Fragment hazard

Some designs accept that glass will break but keep it in place; others allow controlled failure into a catching system. Both aim to stop flying shards.

New glazing or retrofit

New facades can be designed as a full tested system. Existing buildings often get film with edge retention, internal secondary glazing or curtains instead.

Glazing rules in England

England

Glazing in workplaces

Regulation 14 of the Workplace (Health, Safety and Welfare) Regulations 1992 requires windows and transparent surfaces in walls, partitions, doors and gates to be of safety material or protected against breakage where health or safety makes that necessary, and to be marked so people notice them. The employer or the person in control of the premises decides what is needed through their risk assessment.

Fire-rated glass is different

Glass in fire doors, fire screens and protected escape routes has to be fire-rated glass tested as part of that door or screen system, under Approved Document B and the fire safety duties of the building's responsible person. Laminated and security glass are not fire-rated unless the product says so. Where a pane needs both fire and security performance, it must be a product tested for both.

How it works

Postcode and a few photos
On-site survey
Fixed written price and lead time
Fit, check and explain

Blast-resistant glazing in Greater London: questions

Which towns in Greater London do you cover?

We can arrange work anywhere in Greater London, including Central London, Islington, Bexley, Barking and Archway, and in other towns across the area.

Is blast film enough on its own?

Film helps hold glass together but works much better when the film is anchored to the frame so the whole pane cannot fly in. Plain film without retention offers less.

What does ER1 to ER4 mean?

They are explosion-pressure classes in BS EN 13541. Glass samples are tested in a shock tube, with higher classes meaning higher pressures. The class applies to the glass, so the frame must be designed to match.

Who decides what level of protection we need?

Your security adviser, insurer or a blast engineer, based on a threat and risk assessment. Government guidance from the National Protective Security Authority covers the approach.

Other glazing in Greater London

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