Blast-resistant glazing in Sevenoaks

What should blast-resistant glazing cost in Sevenoaks?

Guide prices for blast-resistant glazing in Sevenoaks are £450 to £1,495 plus VAT (£540 to £1,794 inc VAT) per m² for supply and fitting. We confirm a fixed price in writing after a free survey, before any glass is ordered.

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 Sevenoaks

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
Sealed units with a laminated inner pane
Work planned from the threat assessment and engineer's design
Laminated glass with thick or stiff interlayers

Fitting in Sevenoaks and nearby

Sevenoaks is about 14 miles from Maidstone, the main centre for Kent. We can survey and fit across the TN13 district and in nearby places such as Tonbridge 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.

Good candidates for blast-resistant glazing:

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

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.

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.

Glazing rules 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.

Listed buildings and conservation areas

In England, listed building consent from the council may be needed to replace historic glass such as crown or cylinder glass, or to alter glazing bars, sashes and frames. Historic England publishes guidance on traditional windows. Secondary glazing and window film are often easier to agree because they can be removed later, but the council's conservation officer makes the decision.

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 Sevenoaks: questions

Which areas near Sevenoaks do you cover?

We can arrange work in Sevenoaks and in nearby Tonbridge (6 miles), Swanley (9 miles) and Tunbridge Wells (10 miles). Dates depend on 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.

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.

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.

Blast-resistant glazing in nearby towns

Other glazing in Sevenoaks

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