Blast-resistant glazing in Borehamwood: what will it cost?
Guide prices for blast-resistant glazing in Borehamwood 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.
Choices you can make
- Deep-bite frames and structural silicone or mechanical retention
- Blast-resistant net curtains as a fragment-catching layer
- Work planned from the threat assessment and engineer's design
- Laminated glass with thick or stiff interlayers
- Sealed units with a laminated inner pane
- Glazing classed to BS EN 13541 or tested to ISO 16933 and 16934
Fitting in Borehamwood and nearby
We can arrange blast-resistant glazing anywhere in Borehamwood, and in nearby Barnet, Bushey and Potters Bar. Tell us your postcode and we will offer dates.
Hertfordshire includes the historic centres of St Albans and Hertford, post-war new towns such as Stevenage and Hatfield, and Watford's shops and office parks along the M1.
Typical settings for blast-resistant glazing:
- Laboratories and industrial sites with process risks
- Transport hubs, venues and stadium frontages
- Government, council and civic buildings
- Offices in city centres and near potential targets
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.
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
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
- Guide price online or by phone
- Survey in Borehamwood
- Accept the fixed quote
- Fitted by glaziers working under our contract
Blast-resistant glazing in Borehamwood: questions
Which areas near Borehamwood do you cover?
We can arrange work in Borehamwood and in nearby Barnet (3 miles), Bushey (4 miles) and Potters Bar (5 miles). 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 Borehamwood
- Security double-glazed units
- Broken glass replacement
- Security glass for doors
- Safety glazing for schools and public buildings
- Glazing bead security upgrades
- Anti-bandit glass
Tell us about the glazing and we will come back with a guide price.