England · 34 postcode districts
County Durham insulated fire glass
Insulated fire glass across County Durham covers 34 postcode districts in the TS, DL, DH, SR postcode areas. Every job is built around a tested system.
EI 30 – EI 120EnglandTSDLDH
Quote for County Durham
Tell us what you need. We reply with next steps and a guide price.
Towns we cover in County Durham
We cover insulated fire glass in Darlington and across County Durham, including Hartlepool, Stockton-on-Tees, Durham, Chester-le-Street.
Darlington (DL3)Hartlepool (TS24)Stockton-on-Tees (TS19)Durham (DH1)Chester-le-Street (DH3)Billingham (TS23)Stanley (DH9)Consett (DH8)Newton Aycliffe (DL5)Bishop Auckland (DL14)Seaham (SR7)Peterlee (SR8)
Insulated Fire Glass (EI): what you get in County Durham
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.
- Insulating glass in sealed double-glazed units
- EI 30, EI 60, EI 90 and EI 120 glass
- Matched glazing systems and seals
Key checks for County Durham projects
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.
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.
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.
Insulated Fire Glass (EI) in County Durham: 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.
Does EI glass need replacing after a fire?
Yes. Once the interlayers have reacted, the glass has done its job and must be replaced.
Do you cover all of County Durham?
Yes. We take enquiries from across County Durham, including Darlington and Hartlepool, Stockton-on-Tees, Durham, Chester-le-Street, and arrange surveys to suit your programme.
Related
Related services in County Durham
Process
From enquiry to handover in County Durham
Tell us what you have
Send drawings, a fire risk assessment action or photos of the glass marks.
Site visit
A survey in County Durham confirms sizes, access, existing evidence and fixing conditions.
Written proposal
We set out the system, glass, evidence and programme, with a fixed price.
Install and hand over
Installation to the system details, then a handover pack with photographs and evidence.