E 30 – EI 120
Fire-Resistant Glass
Integrity and insulating fire glass supplied and fitted into tested frames.
Learn more →
Greater London · TW5
Insulated Fire Glass (EI) — Heston and TW5
From the TW5 district outwards, we arrange insulated fire glass for buildings across Heston, matching glass, frames and seals to tested evidence rather than guesswork.
EI 30 – EI 120TW5England
Quote for Heston
Tell us what you need. We reply with next steps and a guide price.
What our insulated fire glass service includes in Heston
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.
- Matched glazing systems and seals
- Impact-classified insulating glass
- Handling and installation of heavy panes
- Insulating glass in sealed double-glazed units
Heston coverage and nearby towns
Whether the building is in central Heston or the wider TW5, UB2, TW3, TW4, TW7, UB18 districts, we can survey and quote. We also cover Hounslow, Isleworth, Southall. We cover Heston as part of our Greater London coverage.
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.
Storage on site
Insulating fire glass should be stored dry, upright and away from direct sun before fitting.
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.
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.
How we work in Heston
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 Heston building has no traceable evidence, we say so and price the options rather than guess.
Work around occupied buildings
We can phase work in Heston around residents, staff or pupils, with out-of-hours options.
Building types we cover in Heston
Insulated fire glass applies to many building types in Heston, including retail and leisure units and hotels.
Insulated Fire Glass (EI): Heston questions
Is EI glass clear?
Yes, in normal conditions. It turns opaque only when heated in a fire.
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.
How quickly can you survey in Heston?
Survey timing in Heston 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 Heston?
Building work in Heston 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 Heston
E · EW
Integrity Fire Glass (E & EW)
E and EW glass where flames and hot gases must be stopped.
Learn more →
E 30 – EI 60
Stair, Lobby & Corridor Glazing
Glazed screens and doors on protected stairs, lobbies and corridors.
Learn more →
E 30 – EI 60
Frameless Fire-Rated Glazing
Butt-jointed fire glass walls with minimal frames.
Learn more →Process
How a Heston job runs
Share the details
Send the fire strategy extract, inspection report or a few photos of the openings.
Measure and check
We measure each opening in Heston and check what the existing frames can accept.
Written quote
You receive a written quote naming the tested system and classification.
Install and hand over
Installation to the system details, then a handover pack with photographs and evidence.