Insulated Fire Glass (EI) for Greater London buildings
We survey, supply and install insulated fire glass across Greater London, from London to Brent, Islington, Westminster, Bexley, working to the classification your fire strategy sets.
Quote for Greater London
Tell us what you need. We reply with next steps and a guide price.
What our insulated fire glass service includes in Greater London
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.
- EI 30, EI 60, EI 90 and EI 120 glass
- Internal and external-grade build-ups
- Insulating glass in sealed double-glazed units
Choose a town in Greater London
Our Greater London coverage spans 283 postcode districts across the EC, SE, SW, W postcode areas.
Before you order in Greater London
Storage on site
Insulating fire glass should be stored dry, upright and away from direct sun before fitting.
Exterior positions
Some EI products are internal only. External use needs a product and edge seal approved for UV and weather.
Optical quality
Modern EI glass is clear in normal use, with high light transmission at lower ratings.
Which rules apply in England?
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.
FAQs for Greater London
Does EI glass need replacing after a fire?
Yes. Once the interlayers have reacted, the glass has done its job and must be replaced.
Can EI glass be used outside?
Only products approved for external use, usually in a sealed unit with UV protection.
Is EI glass clear?
Yes, in normal conditions. It turns opaque only when heated in a fire.
Do you cover all of Greater London?
Yes. We take enquiries from across Greater London, including London and Brent, Islington, Westminster, Bexley, and arrange surveys to suit your programme.
Related services in Greater London
How a Greater London job runs
Start with the brief
Tell us the rating required, sizes and building type, or ask us to find out.
Measure and check
We measure each opening in Greater London and check what the existing frames can accept.
Written proposal
We set out the system, glass, evidence and programme, with a fixed price.
Fit and record
We install, photograph seals and fixings before closing up, and hand over the schedule.