Blast-resistant glazing in Hereford

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

Expect £450 to £1,495 plus VAT (£540 to £1,794 inc VAT) per m² for blast-resistant glazing in Hereford. The written quote names the glass makeup, the price and the lead time before you commit.

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

Anti-shatter film with edge-retention systems for existing windows
Deep-bite frames and structural silicone or mechanical retention
Work planned from the threat assessment and engineer's design
Blast-resistant net curtains as a fragment-catching layer
Glazing classed to BS EN 13541 or tested to ISO 16933 and 16934
Sealed units with a laminated inner pane

Fitting in Hereford and nearby

Surveys in Hereford (HR1) are booked around installer availability, as they are in nearby Ross-on-Wye (11 miles) and Leominster (12 miles).

Herefordshire is largely rural, with Hereford's cathedral-city centre, black-and-white timber-framed villages, and market towns such as Leominster and Ledbury with historic centres.

Typical settings for blast-resistant glazing:

Government, council and civic buildings
Embassies, courts and police premises
Transport hubs, venues and stadium frontages
Offices in city centres and near potential targets

Getting the right glass for your building

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.

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.

What the rules say in 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.

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 Hereford: questions

Can you survey in Hereford and nearby towns?

Yes. Surveys in Hereford, Ross-on-Wye and Leominster are booked around installer availability.

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.

Does blast glazing affect fire doors and fire screens?

Glass in fire-rated doors and screens must stay fire-rated glass tested in that system. Blast measures there need fire-rated products or a specialist design, never a swap to plain laminated glass.

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.

Blast-resistant glazing in nearby towns

Other glazing in Hereford

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