EI 30 – EI 120
Insulated Fire Glass (EI)
EI 30 to EI 120 glass that blocks heat as well as flames.
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Cambridgeshire · PE15
March fire-resistant glass
When a fire strategy, inspection report or building control comment in March calls for glazing tested to resist fire, our fire-resistant glass service covers survey, supply and installation.
E 30 – EI 120PE15England
Quote for March
Tell us what you need. We reply with next steps and a guide price.
What's involved with fire-resistant glass in March
We supply and fit fire-resistant glass into new and existing fire-rated frames, matching the glass type, thickness, beads, seals and fixings to the test or assessment evidence for that frame. The glass on its own does not carry a rating; the combination does, so we start every job by identifying the system you have or need.
- Integrity (E) glass: modified toughened, glass-ceramic and polished wired types
- Impact-classified build-ups for critical locations
- Glazing beads and fixings to the frame manufacturer's details
- Intumescent glazing seals, tapes and gaskets to the tested specification
What you can expect in March
Work around occupied buildings
We can phase work in March around residents, staff or pupils, with out-of-hours options.
Evidence you can file
You receive the classification references, glass marks and installation photographs for your fire safety records.
Fixed written quotes
After survey you get a fixed written quote for the agreed scope, so March budgets are not open-ended.
Before you order fire-resistant glass: what matters
Can any fire glass go in any fire-rated frame?
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.
Inside or outside?
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.
Weight and handling
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.
Where we work around March
Our Cambridgeshire coverage takes in March (PE15) and the neighbouring towns of Wisbech, Ely, Peterborough. March is about 23 km from Peterborough, the largest town in our Cambridgeshire coverage.
Fire glass in WisbechFire glass in ElyFire glass in PeterboroughFire glass in King's LynnFire glass in Spalding
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.
Sectors we cover in March
Sector guides below cover public buildings, offices and other buildings in March.
FAQs for March
Is toughened glass fire-resistant?
Ordinary toughened safety glass is not. It can shatter early in a fire. Fire-resistant integrity glass is specially processed or formulated and only gains a rating when fitted in a tested frame and glazing system.
What is the difference between E, EW and EI fire glass?
E is integrity only: it stops flames and hot gases passing for the rated time. EW adds a limit on radiated heat through the glass. EI adds insulation, keeping the unexposed face below set temperature rises so people can pass it safely. The number after the letters is the time in minutes.
How quickly can you survey in March?
Survey timing in March 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.
Do you work on occupied buildings in March?
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 March
E · EW
Integrity Fire Glass (E & EW)
E and EW glass where flames and hot gases must be stopped.
Learn more →
like-for-like
Broken Fire Glass Replacement
Cracked or broken fire glass replaced to the original specification.
Learn more →
E 30 – EI 120
Fire-Rated Glazed Screens
Internal glazed screens that keep compartments and corridors protected.
Learn more →Process
How a March job runs
Share the details
Send the fire strategy extract, inspection report or a few photos of the openings.
Measure and check
We measure each opening in March and check what the existing frames can accept.
Written proposal
We set out the system, glass, evidence and programme, with a fixed price.
Fit and record
We install, photograph seals and fixings before closing up, and hand over the schedule.