Blast-resistant glazing in Hertfordshire

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

Typical prices for blast-resistant glazing in Hertfordshire are £450 to £1,495 plus VAT (£540 to £1,794 inc VAT) per m², supplied and fitted. Use the quote tool for a guide figure, then we survey and confirm a fixed price.

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

Covering Hertfordshire

We can arrange surveys and fitting anywhere in Hertfordshire, including Watford and Hemel Hempstead. Dates depend on installer availability. Choose your town below for local details.

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.

This glazing suits:

Offices in city centres and near potential targets
Transport hubs, venues and stadium frontages
Laboratories and industrial sites with process risks
Government, council and civic buildings

Towns in Hertfordshire

Questions we will ask at the survey

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.

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.

Building regulations and safety in England

England

Glazing in workplaces

Regulation 14 of the Workplace (Health, Safety and Welfare) Regulations 1992 requires windows and transparent surfaces in walls, partitions, doors and gates to be of safety material or protected against breakage where health or safety makes that necessary, and to be marked so people notice them. The employer or the person in control of the premises decides what is needed through their risk assessment.

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.

How it works

Guide price online or by phone
Survey in Hertfordshire
Accept the fixed quote
Fitted by glaziers working under our contract

Blast-resistant glazing in Hertfordshire: questions

Which towns in Hertfordshire do you cover?

We can arrange work anywhere in Hertfordshire, including Watford, Hemel Hempstead, Stevenage, St Albans and Welwyn Garden City, and in other towns across the area.

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.

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.

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.

Other glazing in Hertfordshire

Tell us about the glazing and we will come back with a guide price.