E 30 – EI 120
Fire-Resistant Glass
Integrity and insulating fire glass supplied and fitted into tested frames.
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Greater Manchester · BL1
Insulated Fire Glass (EI) — Bolton and BL1
Our insulated fire glass service covers Bolton and neighbouring areas such as Farnworth and Westhoughton, with every job built around a tested system.
EI 30 – EI 120BL1England
Quote for Bolton
Tell us what you need. We reply with next steps and a guide price.
Insulated Fire Glass (EI) in Bolton: what's included
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
- EI 30, EI 60, EI 90 and EI 120 glass
- Internal and external-grade build-ups
- Handling and installation of heavy panes
Areas we cover around Bolton
Whether the building is in central Bolton or the wider BL1, BL11, BL78, BL2, BL3 districts, we can survey and quote. We also cover Farnworth, Westhoughton, Radcliffe. Manchester, around 17 km from Bolton, is the largest town in the same coverage area.
EI glass in FarnworthEI glass in WesthoughtonEI glass in RadcliffeEI glass in WalkdenEI glass in Atherton
Key checks for Bolton projects
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.
Storage on site
Insulating fire glass should be stored dry, upright and away from direct sun before fitting.
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.
What every Bolton quote includes
Evidence you can file
You receive the classification references, glass marks and installation photographs for your fire safety records.
Work around occupied buildings
We can phase work in Bolton around residents, staff or pupils, with out-of-hours options.
Rated systems, not just rated glass
Every quote in Bolton identifies the tested system: frame, glass, beads, seals and fixings, within its pane-size limits.
Building types we cover in Bolton
Insulated fire glass applies to many building types in Bolton, including public buildings and offices.
Questions about insulated fire glass in Bolton
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.
Is EI glass clear?
Yes, in normal conditions. It turns opaque only when heated in a fire.
Can you price insulated fire glass in Bolton 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 Bolton?
Survey timing in Bolton 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 Bolton
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.
Learn more →
E 30 – EI 60
Frameless Fire-Rated Glazing
Butt-jointed fire glass walls with minimal frames.
Learn more →Process
How a Bolton job runs
Share the details
Send the fire strategy extract, inspection report or a few photos of the openings.
Site visit
A survey in Bolton confirms sizes, access, existing evidence and fixing conditions.
Written quote
You receive a written quote naming the tested system and classification.
Fit and record
We install, photograph seals and fixings before closing up, and hand over the schedule.