E 30 – EI 120
Fire-Resistant Glass
Integrity and insulating fire glass supplied and fitted into tested frames.
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Wiltshire · SN1
Insulated Fire Glass (EI) in Swindon
From the SN1 district outwards, we arrange insulated fire glass for buildings across Swindon, matching glass, frames and seals to tested evidence rather than guesswork.
EI 30 – EI 120SN1England
Quote for Swindon
Tell us what you need. We reply with next steps and a guide price.
What our insulated fire glass service includes in Swindon
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.
- EI 30, EI 60, EI 90 and EI 120 glass
- Internal and external-grade build-ups
- Impact-classified insulating glass
- Matched glazing systems and seals
Where we work around Swindon
Our Wiltshire coverage takes in Swindon (SN1, SN25, SN2) and the neighbouring towns of Cirencester, Chippenham, Witney. Swindon is the main town we cover in Wiltshire.
EI glass in CirencesterEI glass in ChippenhamEI glass in WitneyEI glass in StroudEI glass in Newbury
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.
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.
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.
What you can expect in Swindon
Rated systems, not just rated glass
Every quote in Swindon identifies the tested system: frame, glass, beads, seals and fixings, within its pane-size limits.
England rules applied
Designs follow the building and fire safety rules that apply in England, not a one-size-fits-all approach.
Work around occupied buildings
We can phase work in Swindon around residents, staff or pupils, with out-of-hours options.
Building types we cover in Swindon
Insulated fire glass applies to many building types in Swindon, including hotels and offices.
FAQs for Swindon
Does EI glass need replacing after a fire?
Yes. Once the interlayers have reacted, the glass has done its job and must be replaced.
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.
Which rules apply to fire-rated glazing in Swindon?
Building work in Swindon follows the Building Regulations 2010 and Approved Document B, and occupied buildings are covered by the Regulatory Reform (Fire Safety) Order 2005.
Do you carry out insulated fire glass in Swindon?
Yes. We survey and install in Swindon and across Wiltshire, including the SN1 district and nearby Cirencester.
Related
Related services in Swindon
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 Swindon job runs
Tell us what you have
Send drawings, a fire risk assessment action or photos of the glass marks.
Site visit
A survey in Swindon 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.