E 30 – EI 120
Fire-Resistant Glass
Integrity and insulating fire glass supplied and fitted into tested frames.
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Greater London · EN5
Insulated Fire Glass (EI) in Barnet
If a building in Barnet needs insulated fire glass, the starting point is the rating its fire strategy requires. We confirm that, survey the openings and quote a tested system to suit.
EI 30 – EI 120EN5England
Quote for Barnet
Tell us what you need. We reply with next steps and a guide price.
Insulated Fire Glass (EI) in Barnet: what's included
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.
- Impact-classified insulating glass
- Handling and installation of heavy panes
- Matched glazing systems and seals
- Internal and external-grade build-ups
Key checks for Barnet projects
Optical quality
Modern EI glass is clear in normal use, with high light transmission at lower ratings.
How it works
When heated, the interlayers turn opaque and expand, forming an insulating shield. After a fire the glass will need replacing.
Exterior positions
Some EI products are internal only. External use needs a product and edge seal approved for UV and weather.
Areas we cover around Barnet
Coverage around Barnet includes the EN5, N20, EN4, NW7 districts and nearby Potters Bar, Borehamwood, Finchley. Barnet sits within our Greater London coverage, alongside Potters Bar.
EI glass in Potters BarEI glass in BorehamwoodEI glass in FinchleyEI glass in Muswell HillEI glass in Enfield
What every Barnet quote includes
Fixed written quotes
After survey you get a fixed written quote for the agreed scope, so Barnet budgets are not open-ended.
Honest about unknowns
If an existing frame in a Barnet building has no traceable evidence, we say so and price the options rather than guess.
Rated systems, not just rated glass
Every quote in Barnet identifies the tested system: frame, glass, beads, seals and fixings, within its pane-size limits.
Fire glazing rules 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.
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.
Barnet building types
Insulated fire glass applies to many building types in Barnet, including student accommodation and public buildings.
FAQs for Barnet
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 Barnet 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 Barnet?
Survey timing in Barnet 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 Barnet
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.
Learn more →Process
From enquiry to handover in Barnet
Start with the brief
Tell us the rating required, sizes and building type, or ask us to find out.
Site visit
A survey in Barnet 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.