England · 46 postcode districts
Integrity Fire Glass (E & EW) for Hertfordshire buildings
Integrity fire glass across Hertfordshire covers 46 postcode districts in the SG, WD, AL, HP postcode areas. Every job is built around a tested system.
E · EWEnglandSGWDAL
Quote for Hertfordshire
Tell us what you need. We reply with next steps and a guide price.
Integrity Fire Glass (E & EW): an overview for Hertfordshire
Integrity fire glass, classified E, stops flames and hot gases passing for the rated time but does not limit the heat coming through. EW glass adds a cap on the heat radiated through the glass. Both are thinner, lighter and cheaper than fully insulated glass.
- Modified toughened integrity glass
- Matched beads and seals
- Polished wired glass where still appropriate
Key checks for Hertfordshire projects
Limits on escape routes
Building guidance restricts how much integrity-only glass can be used on protected escape routes and where it can sit. Check the route before choosing E glass.
Impact safety
Modern integrity glass is usually available with an impact classification, unlike plain wired glass.
What EW adds
EW glass limits radiation to 15 kW/m² measured one metre from the glass, reducing the risk of igniting materials or harming people nearby.
Towns we cover in Hertfordshire
Our Hertfordshire coverage spans 46 postcode districts across the SG, WD, AL, HP postcode areas.
Watford (WD17)Hemel Hempstead (HP3)Stevenage (SG1)St Albans (AL1)Welwyn Garden City (AL8)Cheshunt (EN8)Hatfield (AL10)Bishop's Stortford (CM23)Borehamwood (WD6)Hitchin (SG4)Hoddesdon (EN11)Letchworth Garden City (SG6)Harpenden (AL5)Bushey (WD23)Hertford (SG13)Rickmansworth (WD3)Potters Bar (EN6)Berkhamsted (HP4)
England rules for fire glazing
England Which rules apply?
Building work in England is covered by the Building Regulations 2010, with fire safety guidance in Approved Document B and impact safety guidance for glazing in Approved Document K.
Once a building is in use, the Regulatory Reform (Fire Safety) Order 2005 requires the responsible person to maintain fire safety measures, including fire-resisting glazing. The Fire Safety (England) Regulations 2022 add duties for multi-occupied residential buildings, including fire door checks in buildings over 11 metres.
Questions from Hertfordshire clients
Is integrity glass allowed on escape routes?
In limited amounts and positions. Building guidance sets the rules; insulating glass is used where those limits are exceeded.
Is integrity glass cheaper?
Yes, considerably, and it is thinner and lighter.
What is integrity-only fire glass?
Glass that stops flames and hot gases for the rated time but lets heat through. It is classified E.
Do you cover all of Hertfordshire?
Yes. We take enquiries from across Hertfordshire, including Watford and Hemel Hempstead, Stevenage, St Albans, Welwyn Garden City, and arrange surveys to suit your programme.
Related
Related services in Hertfordshire
Process
What happens next
Share the details
Send the fire strategy extract, inspection report or a few photos of the openings.
Measure and check
We measure each opening in Hertfordshire and check what the existing frames can accept.
Quote and evidence
Your quote lists each item with its classification and the evidence it relies on.
Fit and record
We install, photograph seals and fixings before closing up, and hand over the schedule.