Blast-resistant glazing in Caernarfon

What is the price of blast-resistant glazing in Caernarfon?

As a guide, allow £450 to £1,495 plus VAT (£540 to £1,794 inc VAT) per m² for blast-resistant glazing in Caernarfon, supplied and fitted. Size, glass makeup, access and frame condition move the price, which is confirmed in writing after the free survey.

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 goes into blast-resistant glazing

Deep-bite frames and structural silicone or mechanical retention
Manufacturer's test evidence supplied with your quote
Glazing classed to BS EN 13541 or tested to ISO 16933 and 16934
Sealed units with a laminated inner pane
Laminated glass with thick or stiff interlayers
Anti-shatter film with edge-retention systems for existing windows

Fitting in Caernarfon and nearby

Surveys in Caernarfon (LL55) are booked around installer availability. We also cover nearby Bangor (9 miles), Pwllheli (18 miles) and Holyhead (19 miles).

Gwynedd covers slate-built towns such as Bangor, Caernarfon and Porthmadog, Anglesey's Holyhead and Llangefni, and coastal holiday properties exposed to Irish Sea weather.

This glazing suits:

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

Questions we will ask at the survey

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.

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.

Building regulations and safety in Wales

Wales

Fire-rated glass is different

Glass in fire doors and fire screens must be fire-rated glass tested as part of that door or screen, under Approved Document B for Wales and, in non-domestic premises, the Regulatory Reform (Fire Safety) Order 2005. Security and laminated glass are not fire-rated unless the product is tested for it, so the two cannot simply be swapped.

Glazing in workplaces

Regulation 14 of the Workplace (Health, Safety and Welfare) Regulations 1992 applies in Wales. Windows and transparent surfaces in walls, partitions, doors and gates must be of safety material or protected against breakage where health or safety requires it, and marked so they are apparent. The employer's risk assessment decides where that applies.

How it works

Send sizes or use the quote tool
Free survey at your Caernarfon address
Fixed price in writing
Glass made, then fitted

Blast-resistant glazing in Caernarfon: questions

Can you survey in Caernarfon and nearby towns?

Yes. Surveys in Caernarfon, Bangor and Pwllheli are booked around 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.

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.

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 Caernarfon

Ready for a price? Use the form or call 0800 088 6248.