Insulated Fire Glass (EI) across Warwickshire
We take insulated fire glass enquiries from across Warwickshire, with surveys arranged in Nuneaton, Rugby, Royal Leamington Spa, Warwick, Bedworth and the surrounding towns.
Quote for Warwickshire
Tell us what you need. We reply with next steps and a guide price.

Towns we cover in Warwickshire
Warwickshire coverage includes Nuneaton, Rugby, Royal Leamington Spa, Warwick, Bedworth and the CV, B postcode areas (25 postcode districts).
Insulated Fire Glass (EI): an overview for Warwickshire
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
- Matched glazing systems and seals
- Handling and installation of heavy panes
Key checks for Warwickshire projects
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.
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.
England rules for fire glazing
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.
Insulated Fire Glass (EI) in Warwickshire: questions
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 EI glass be used outside?
Only products approved for external use, usually in a sealed unit with UV protection.
Do you cover all of Warwickshire?
Yes. We take enquiries from across Warwickshire, including Nuneaton and Rugby, Royal Leamington Spa, Warwick, Bedworth, and arrange surveys to suit your programme.
Related services in Warwickshire
How a Warwickshire job runs
Share the details
Send the fire strategy extract, inspection report or a few photos of the openings.
Survey
We visit Warwickshire to measure, record existing marks and check the frames and substrate.
Quote and evidence
Your quote lists each item with its classification and the evidence it relies on.
Install and hand over
Installation to the system details, then a handover pack with photographs and evidence.