E 30 – EI 120
Fire-Resistant Glass
Integrity and insulating fire glass supplied and fitted into tested frames.
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Greater London · E17
Insulated Fire Glass (EI) across Walthamstow
For Walthamstow buildings, we supply, replace and check insulated fire glass wherever the fire strategy depends on it, working to the tested system rather than the glass alone.
EI 30 – EI 120E17England
Quote for Walthamstow
Tell us what you need. We reply with next steps and a guide price.
What's involved with insulated fire glass in Walthamstow
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.
- Insulating glass in sealed double-glazed units
- Matched glazing systems and seals
- Impact-classified insulating glass
- EI 30, EI 60, EI 90 and EI 120 glass
Before you order insulated fire glass: what matters
Exterior positions
Some EI products are internal only. External use needs a product and edge seal approved for UV and weather.
How it works
When heated, the interlayers turn opaque and expand, forming an insulating shield. After a fire the glass will need replacing.
Thickness and weight
Each step up in rating adds layers, so EI 120 is far thicker and heavier than EI 30. The frame has to be designed for it.
England regulations that shape the job
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.
Areas we cover around Walthamstow
We cover Walthamstow and the surrounding postcode districts, including E17, E18, E11, IG8, E10, N17. Nearby towns we also serve include Leytonstone, Tottenham, Woodford Green. Walthamstow sits within our Greater London coverage, alongside Leytonstone.
EI glass in LeytonstoneEI glass in TottenhamEI glass in Woodford GreenEI glass in Stamford HillEI glass in Chingford
What you can expect in Walthamstow
Fixed written quotes
After survey you get a fixed written quote for the agreed scope, so Walthamstow budgets are not open-ended.
Work around occupied buildings
We can phase work in Walthamstow around residents, staff or pupils, with out-of-hours options.
England rules applied
Designs follow the building and fire safety rules that apply in England, not a one-size-fits-all approach.
Building types we cover in Walthamstow
Insulated fire glass applies to many building types in Walthamstow, including healthcare buildings and blocks of flats.
FAQs for Walthamstow
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.
Is EI glass clear?
Yes, in normal conditions. It turns opaque only when heated in a fire.
Can you price insulated fire glass in Walthamstow from photos?
We can give a guide range from photos and sizes, including a clear photo of any marks on the glass. A fixed price follows a survey.
How quickly can you survey in Walthamstow?
Survey timing in Walthamstow depends on access, the size of the building and how urgent the defect is. Tell us your deadline when you enquire and we will confirm a date before you commit.
Related
Related services in Walthamstow
E · EW
Integrity Fire Glass (E & EW)
E and EW glass where flames and hot gases must be stopped.
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E 30 – EI 60
Stair, Lobby & Corridor Glazing
Glazed screens and doors on protected stairs, lobbies and corridors.
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E 30 – EI 60
Frameless Fire-Rated Glazing
Butt-jointed fire glass walls with minimal frames.
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From enquiry to handover in Walthamstow
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 Walthamstow and check what the existing frames can accept.
Written quote
You receive a written quote naming the tested system and classification.
Fit and record
We install, photograph seals and fixings before closing up, and hand over the schedule.