Blast-resistant glazing in Finchley

How much should I budget for blast-resistant glazing in Finchley?

Our guide range for blast-resistant glazing in Finchley is £450 to £1,495 plus VAT (£540 to £1,794 inc VAT) per m², including fitting. The survey is free for new installations and your fixed price follows in writing.

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.

What you can specify

Laminated glass with thick or stiff interlayers
Sealed units with a laminated inner pane
Blast-resistant net curtains as a fragment-catching layer
Manufacturer's test evidence supplied with your quote
Anti-shatter film with edge-retention systems for existing windows
Deep-bite frames and structural silicone or mechanical retention

Fitting in Finchley and nearby

We arrange surveys and fitting in Finchley and across the N3 postcode district, as well as in nearby Muswell Hill (2 miles) and Cricklewood (3 miles). Dates depend on installer availability.

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.

Common uses:

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

What to think about first

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.

Consents and safety: England

England

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.

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.

How it works

Guide price online or by phone
Survey in Finchley
Accept the fixed quote
Fitted by glaziers working under our contract

Blast-resistant glazing in Finchley: questions

Do you cover Muswell Hill as well as Finchley?

Yes. As well as Finchley, we can arrange surveys in nearby Muswell Hill, Cricklewood and Kilburn. Dates depend on installer availability.

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.

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.

Blast-resistant glazing in nearby towns

Other glazing in Finchley

Tell us about the glazing and we will come back with a guide price.