E 30 – EI 120
Fire-Resistant Glass
Integrity and insulating fire glass supplied and fitted into tested frames.
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Greater London · TW3
Insulated Fire Glass (EI) in Hounslow, Greater London
When a fire strategy, inspection report or building control comment in Hounslow calls for glazing tested to resist fire, our insulated fire glass service covers survey, supply and installation.
EI 30 – EI 120TW3England
Quote for Hounslow
Tell us what you need. We reply with next steps and a guide price.
What our insulated fire glass service includes in Hounslow
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.
- Matched glazing systems and seals
- Internal and external-grade build-ups
- Insulating glass in sealed double-glazed units
- Handling and installation of heavy panes
What to check before ordering insulated fire glass in Hounslow
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.
Storage on site
Insulating fire glass should be stored dry, upright and away from direct sun before fitting.
How it works
When heated, the interlayers turn opaque and expand, forming an insulating shield. After a fire the glass will need replacing.
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.
Where we work around Hounslow
We cover Hounslow and the surrounding postcode districts, including TW3, TW4, TW7, TW5, UB2, TW1. Nearby towns we also serve include Isleworth, Heston, Richmond. Hounslow is one of the Greater London districts we cover.
How we work in Hounslow
England rules applied
Designs follow the building and fire safety rules that apply in England, not a one-size-fits-all approach.
Evidence you can file
You receive the classification references, glass marks and installation photographs for your fire safety records.
Rated systems, not just rated glass
Every quote in Hounslow identifies the tested system: frame, glass, beads, seals and fixings, within its pane-size limits.
Building types we cover in Hounslow
Sector guides below cover public buildings, hotels and other buildings in Hounslow.
Questions about insulated fire glass in Hounslow
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.
How quickly can you survey in Hounslow?
Survey timing in Hounslow 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.
Which rules apply to fire-rated glazing in Hounslow?
Building work in Hounslow follows the Building Regulations 2010 and Approved Document B, and occupied buildings are covered by the Regulatory Reform (Fire Safety) Order 2005.
Related
Related services in Hounslow
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
How a Hounslow job runs
Start with the brief
Tell us the rating required, sizes and building type, or ask us to find out.
Site visit
A survey in Hounslow 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.
Complete and document
Work is completed to the manufacturer's details and documented for your records.