Insulated Fire Glass (EI)
EI 30 to EI 120 glass that blocks heat as well as flames.
Learn more →For Rickmansworth buildings, we supply, replace and check fire-resistant glass wherever the fire strategy depends on it, working to the tested system rather than the glass alone.
Tell us what you need. We reply with next steps and a guide price.
Fire-resistant glass is glazing that has been tested, as part of a complete glazed system, to hold back fire for a set time. It is classified by what it stops: E (integrity) keeps flames and hot gases on the fire side, EW also limits the heat radiated through the glass, and EI (integrity and insulation) also limits the temperature rise on the protected side, so people can pass it more safely.
Many insulating fire glasses use interlayers that need protecting from UV and moisture, so external positions need a product approved for exterior use, with the right edge seal and glazing system.
No. A frame is only rated with the glass types and pane sizes it was tested or assessed with. We check the frame's evidence before quoting, and if the existing frame is unknown we say so and price the options.
Insulating fire glass gets thicker and heavier as the rating rises. Large EI 60 and EI 120 panes often need lifting equipment and a frame designed for the load, which we plan before the delivery date.
We cover Rickmansworth and the surrounding postcode districts, including WD3, HA6. Nearby towns we also serve include Watford, Chalfont St Peter, Gerrards Cross. Rickmansworth lies roughly 6 km from Watford, within our Hertfordshire coverage.
If an existing frame in a Rickmansworth building has no traceable evidence, we say so and price the options rather than guess.
You receive the classification references, glass marks and installation photographs for your fire safety records.
Every quote in Rickmansworth identifies the tested system: frame, glass, beads, seals and fixings, within its pane-size limits.
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.
Fire-resistant glass applies to many building types in Rickmansworth, including schools and colleges and industrial units.
Integrity glass can be similar in thickness to standard glass. Insulating glass is laminated from several layers, so it gets markedly thicker and heavier as the rating increases from EI 30 to EI 120.
Often, yes. We read the marks on the existing panes and check them against the frame evidence. Where the original product is discontinued we look for an alternative covered by the same evidence or a formal assessment.
Building work in Rickmansworth follows the Building Regulations 2010 and Approved Document B, and occupied buildings are covered by the Regulatory Reform (Fire Safety) Order 2005.
Survey timing in Rickmansworth 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.
EI 30 to EI 120 glass that blocks heat as well as flames.
Learn more →E and EW glass where flames and hot gases must be stopped.
Learn more →Cracked or broken fire glass replaced to the original specification.
Learn more →Internal glazed screens that keep compartments and corridors protected.
Learn more →Tell us the rating required, sizes and building type, or ask us to find out.
A survey in Rickmansworth confirms sizes, access, existing evidence and fixing conditions.
Your quote lists each item with its classification and the evidence it relies on.
We install, photograph seals and fixings before closing up, and hand over the schedule.
Send sizes, photos of any glass marks or your inspection report and we will come back with the right tested system.