E 30 – EI 120
Fire-Resistant Glass
Integrity and insulating fire glass supplied and fitted into tested frames.
Learn more →
Hertfordshire · SG13
Insulated Fire Glass (EI) in Hertford, Hertfordshire
Our insulated fire glass service covers Hertford and neighbouring areas such as Hoddesdon and Welwyn Garden City, with every job built around a tested system.
EI 30 – EI 120SG13England
Quote for Hertford
Tell us what you need. We reply with next steps and a guide price.
What's involved with insulated fire glass in Hertford
EI glass is the choice where people need to pass close to the glass during a fire, where combustible materials sit near it, or where building guidance would otherwise restrict glazing. We supply and fit EI 30 to EI 120 glass in tested frames, internally and externally.
- EI 30, EI 60, EI 90 and EI 120 glass
- Handling and installation of heavy panes
- Matched glazing systems and seals
- Insulating glass in sealed double-glazed units
What to check before ordering insulated fire glass in Hertford
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.
Exterior positions
Some EI products are internal only. External use needs a product and edge seal approved for UV and weather.
Areas we cover around Hertford
Our Hertfordshire coverage takes in Hertford (SG13, SG14) and the neighbouring towns of Hoddesdon, Welwyn Garden City, Hatfield. Hertford is about 27 km from Watford, the largest town in our Hertfordshire coverage.
EI glass in HoddesdonEI glass in Welwyn Garden CityEI glass in HatfieldEI glass in CheshuntEI glass in Waltham Abbey
What every Hertford quote includes
Rated systems, not just rated glass
Every quote in Hertford 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 Hertford around residents, staff or pupils, with out-of-hours options.
Which rules apply to insulated fire glass in Hertford?
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.
Building types we cover in Hertford
Sector guides below cover retail and leisure units, public buildings and other buildings in Hertford.
Questions about insulated fire glass in Hertford
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 carry out insulated fire glass in Hertford?
Yes. We survey and install in Hertford and across Hertfordshire, including the SG13 district and nearby Hoddesdon.
Do you work on occupied buildings in Hertford?
Yes. We plan phasing, out-of-hours work and temporary protection so the building can stay in use where the fire strategy allows.
Related
Related services in Hertford
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
From enquiry to handover in Hertford
Start with the brief
Tell us the rating required, sizes and building type, or ask us to find out.
Site visit
A survey in Hertford confirms sizes, access, existing evidence and fixing conditions.
Quote and evidence
Your quote lists each item with its classification and the evidence it relies on.
Complete and document
Work is completed to the manufacturer's details and documented for your records.