Insulated Fire Glass (EI) for Surrey buildings
Insulated fire glass across Surrey covers 57 postcode districts in the GU, KT, RH, TW postcode areas. Every job is built around a tested system.
Quote for Surrey
Tell us what you need. We reply with next steps and a guide price.

Insulated Fire Glass (EI): what you get in Surrey
EI glass is the choice where people need to pass close to the glass during a fire, where combustible materials sit near it, or where building guidance would otherwise restrict glazing. We supply and fit EI 30 to EI 120 glass in tested frames, internally and externally.
- Internal and external-grade build-ups
- Insulating glass in sealed double-glazed units
- Impact-classified insulating glass
What to check before ordering in Surrey
Exterior positions
Some EI products are internal only. External use needs a product and edge seal approved for UV and weather.
Storage on site
Insulating fire glass should be stored dry, upright and away from direct sun before fitting.
Optical quality
Modern EI glass is clear in normal use, with high light transmission at lower ratings.
Choose a town in Surrey
Across Surrey we can survey in Woking, Guildford, Esher, Redhill, Staines-upon-Thames and every district in the GU, KT, RH, TW postcode areas.
Regulations for Surrey 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.
FAQs for Surrey
Is EI glass clear?
Yes, in normal conditions. It turns opaque only when heated in a fire.
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.
Can you survey anywhere in Surrey?
Yes. We can arrange surveys anywhere in Surrey, including Woking and Guildford, Esher, Redhill, Staines-upon-Thames.
Related services in Surrey
From enquiry to handover in Surrey
Tell us what you have
Send drawings, a fire risk assessment action or photos of the glass marks.
Site visit
A survey in Surrey confirms sizes, access, existing evidence and fixing conditions.
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.