Blast-resistant glazing in Dartford

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

Our guide range for blast-resistant glazing in Dartford 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.

Options for blast-resistant glazing in Dartford

Manufacturer's test evidence supplied with your quote
Blast-resistant net curtains as a fragment-catching layer
Deep-bite frames and structural silicone or mechanical retention
Sealed units with a laminated inner pane
Work planned from the threat assessment and engineer's design
Anti-shatter film with edge-retention systems for existing windows

Fitting in Dartford and nearby

Dartford is about 18 miles from Maidstone, the main centre for Kent. We can survey and fit across the DA1 district and in nearby places such as Bexley and Swanley.

Kent ranges from Canterbury's listed city centre and the Regency fronts of Tunbridge Wells to the Medway towns, Ashford's growth estates and coastal Margate and Folkestone.

Typical settings for blast-resistant glazing:

Transport hubs, venues and stadium frontages
Laboratories and industrial sites with process risks
Embassies, courts and police premises
Government, council and civic buildings

Getting the right glass for your building

Frame and fixings

The frame must hold the glass and the fixings must hold the frame. Upgrading glass alone can move the failure to the frame.

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.

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.

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.

How it works

Tell us about the glazing
Survey, measuring and frame check
Written quote naming the glass
Fitting and handover

Blast-resistant glazing in Dartford: questions

Which areas near Dartford do you cover?

We can arrange work in Dartford and in nearby Bexley (3 miles), Swanley (4 miles) and Welling (5 miles). Dates depend on installer availability.

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.

Blast-resistant glazing in nearby towns

Other glazing in Dartford

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