How much does blast-resistant glazing cost in Derry?
Expect £450 to £1,495 plus VAT (£540 to £1,794 inc VAT) per m² for blast-resistant glazing in Derry. 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.
What you can specify
- Work planned from the threat assessment and engineer's design
- Anti-shatter film with edge-retention systems for existing windows
- 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
Fitting in Derry and nearby
We arrange surveys and fitting in Derry and across the BT48 postcode district. Tell us your postcode and we will offer dates.
Londonderry's listed walled city and riverside offices, Coleraine's university-town centre and the north coast at Portstewart sit alongside the market towns of Magherafelt and Limavady.
Typical places for blast-resistant glazing:
- Offices in city centres and near potential targets
- Laboratories and industrial sites with process risks
- Transport hubs, venues and stadium frontages
- Government, council and civic buildings
Things to decide before you order
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.
Rules that apply in Northern Ireland
Listed buildings and conservation areas
Listed buildings in Northern Ireland need listed building consent from the council for works affecting their character, which can include historic glass and sash windows. The Department for Communities' Historic Environment Division advises on these cases. Conservation areas bring extra scrutiny of shopfronts and external changes.
Planning permission
Planning in Northern Ireland is handled by the eleven councils, which decide whether a new or altered shopfront needs permission; changing the glass in an existing frame usually does not. Bollards or barriers on a public footway need consent from the Department for Infrastructure's roads service.
How it works
- Send sizes or use the quote tool
- Free survey at your Derry address
- Fixed price in writing
- Glass made, then fitted
Blast-resistant glazing in Derry: questions
Do you cover Strabane as well as Derry?
Yes. As well as Derry, we can arrange work in nearby Strabane. Dates depend on installer availability.
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.
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.
Blast-resistant glazing in nearby towns
Other glazing in Derry
- Toughened safety glass
- Security secondary glazing
- Security glass for home windows
- Security window film
- Misted unit replacement with laminated glass
- Laminated glass retrofit
Ready for a price? Use the form or call 0800 088 6248.