Insulated Fire Glass (EI) in Norfolk
We take insulated fire glass enquiries from across Norfolk, with surveys arranged in Norwich, Great Yarmouth, King's Lynn, Thetford and the surrounding towns.
Quote for Norfolk
Tell us what you need. We reply with next steps and a guide price.

Insulated Fire Glass (EI): what you get in Norfolk
Insulated fire glass, classified EI, is glazing that maintains integrity and keeps the temperature rise on the non-fire side within set limits for the rated time. It is usually made of several glass panes bonded with interlayers that foam into an insulating barrier when heated, or with a clear gel that absorbs heat.
- Matched glazing systems and seals
- Internal and external-grade build-ups
- Impact-classified insulating glass
What to check before ordering in Norfolk
Exterior positions
Some EI products are internal only. External use needs a product and edge seal approved for UV and weather.
The temperature rule
EI testing limits the average temperature rise on the unexposed face to 140°C and any single point to 180°C, which is why people can pass it.
Storage on site
Insulating fire glass should be stored dry, upright and away from direct sun before fitting.
Insulated Fire Glass (EI) by town in Norfolk
Across Norfolk we can survey in Norwich, Great Yarmouth, King's Lynn, Thetford and every district in the NR, PE, IP postcode areas.
Regulations for Norfolk projects
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.
In higher-risk buildings, broadly 18 metres or seven storeys with two or more homes, the Building Safety Regulator is the building control authority. England is also phasing out BS 476 references from Approved Document B, with the remaining fire-resistance references due to go in September 2029.
Questions from Norfolk clients
Why is insulated fire glass so much more expensive?
It is a multi-layer product with specialist interlayers, and the frame and installation must suit its weight.
Can EI glass be used outside?
Only products approved for external use, usually in a sealed unit with UV protection.
What does EI 60 mean?
The glazing system kept fire on one side (integrity) and limited the temperature rise on the other side (insulation) for at least 60 minutes in a standard fire test.
Do you cover all of Norfolk?
Yes. We take enquiries from across Norfolk, including Norwich and Great Yarmouth, King's Lynn, Thetford, and arrange surveys to suit your programme.
Related services in Norfolk
How a Norfolk job runs
Share the details
Send the fire strategy extract, inspection report or a few photos of the openings.
Site visit
A survey in Norfolk confirms sizes, access, existing evidence and fixing conditions.
Written proposal
We set out the system, glass, evidence and programme, with a fixed price.
Install and hand over
Installation to the system details, then a handover pack with photographs and evidence.