E 30 – EI 120
Fire-Resistant Glass
Integrity and insulating fire glass supplied and fitted into tested frames.
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Greater London · SW1
Westminster insulated fire glass
We provide insulated fire glass in Westminster and across Greater London, working from the classification your building needs and handing over the evidence that proves what was fitted.
EI 30 – EI 120SW1England
Quote for Westminster
Tell us what you need. We reply with next steps and a guide price.
Insulated Fire Glass (EI) in Westminster: 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.
- Handling and installation of heavy panes
- Insulating glass in sealed double-glazed units
- Matched glazing systems and seals
- EI 30, EI 60, EI 90 and EI 120 glass
What you can expect in Westminster
Evidence you can file
You receive the classification references, glass marks and installation photographs for your fire safety records.
England rules applied
Designs follow the building and fire safety rules that apply in England, not a one-size-fits-all approach.
Honest about unknowns
If an existing frame in a Westminster building has no traceable evidence, we say so and price the options rather than guess.
Before you order insulated fire glass: what matters
Optical quality
Modern EI glass is clear in normal use, with high light transmission at lower ratings.
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.
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.
Where we work around Westminster
Our Greater London coverage takes in Westminster (SW1, SW1A, W1M, SW1X, EC1A, EC1M) and the neighbouring towns of Pimlico, London, Chelsea. Westminster sits within our Greater London coverage, alongside Pimlico.
Which rules apply to insulated fire glass in Westminster?
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.
Sectors we cover in Westminster
Insulated fire glass applies to many building types in Westminster, including retail and leisure units and blocks of flats.
FAQs for Westminster
Can EI glass be used outside?
Only products approved for external use, usually in a sealed unit with UV protection.
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 you price insulated fire glass in Westminster 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.
Do you carry out insulated fire glass in Westminster?
Yes. We survey and install in Westminster and across Greater London, including the SW1 district and nearby Pimlico.
Related
Related services in Westminster
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
What happens next
Share the details
Send the fire strategy extract, inspection report or a few photos of the openings.
Site visit
A survey in Westminster confirms sizes, access, existing evidence and fixing conditions.
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.