Blast-resistant glazing in Ewell

Blast-resistant glazing in Ewell: what will it cost?

Budget £450 to £1,495 plus VAT (£540 to £1,794 inc VAT) per m² for blast-resistant glazing in Ewell, 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

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
Laminated glass with thick or stiff interlayers
Blast-resistant net curtains as a fragment-catching layer

Fitting in Ewell and nearby

From the KT17 district we also cover Epsom (2 miles) and Sutton (2 miles). Survey dates depend on installer availability.

Surrey's commuter towns such as Guildford, Woking and Epsom mix Victorian and inter-war houses with modern glazed offices, while Farnham and Godalming have extensive conservation areas.

Typical settings for blast-resistant glazing:

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

Getting the right glass for your building

Who sets the level

The design pressure comes from a threat and risk assessment by a security adviser or blast engineer, not from the glass supplier.

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.

What the rules say in England

England

Planning permission

Changing the glass in an existing window or shopfront does not usually need planning permission, because the building looks much the same afterwards. A new or altered shopfront, or security features added to the outside of a building, may need planning permission from the council. Bollards or barriers on the pavement need the highway authority's consent, which is normally the council.

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 Ewell: questions

Can you survey in Ewell and nearby towns?

Yes. Surveys in Ewell, Epsom and Sutton are booked around installer availability.

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.

Can existing windows be made blast-resistant?

They can often be improved. Anti-shatter film with an edge-retention system, laminated replacement glass in strengthened frames or internal secondary glazing can cut the flying-glass hazard, depending on the threat.

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.

Blast-resistant glazing in nearby towns

Other glazing in Ewell

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

Free quote in Ewell