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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Greater London · TW7
Fire-Resistant Glass across Isleworth
When a fire strategy, inspection report or building control comment in Isleworth calls for glazing tested to resist fire, our fire-resistant glass service covers survey, supply and installation.
E 30 – EI 120TW7England
Quote for Isleworth
Tell us what you need. We reply with next steps and a guide price.
Fire-Resistant Glass in Isleworth: what's included
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.
- Glazing beads and fixings to the frame manufacturer's details
- Insulating (EI) intumescent-interlayer and gel-filled glass
- Intumescent glazing seals, tapes and gaskets to the tested specification
- Integrity with radiation control (EW) laminated glass
What to check before ordering fire-resistant glass in Isleworth
Marking and records
Most fire glass is permanently marked with its product and classification. We record the marks, pane sizes and evidence references on handover so whoever is responsible for fire safety can show what is installed.
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.
Which classification do you actually need?
The fire strategy or building control drawings set the rating for each element. Integrity-only glass is cheaper and thinner, but its use on escape routes is restricted; insulating glass carries far fewer restrictions because people can pass it safely during a fire.
England regulations that shape the job
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.
Isleworth coverage and nearby towns
Coverage around Isleworth includes the TW7, TW4, TW3, TW8, TW9, UB2 districts and nearby Hounslow, Heston, Richmond. Isleworth sits within our Greater London coverage, alongside Hounslow.
Fire glass in HounslowFire glass in HestonFire glass in RichmondFire glass in SouthallFire glass in Hanworth
How we work in Isleworth
Rated systems, not just rated glass
Every quote in Isleworth identifies the tested system: frame, glass, beads, seals and fixings, within its pane-size limits.
Evidence you can file
You receive the classification references, glass marks and installation photographs for your fire safety records.
England rules applied
Designs follow the building and fire safety rules that apply in England, not a one-size-fits-all approach.
Building types we cover in Isleworth
Sector guides below cover public buildings, schools and colleges and other buildings in Isleworth.
Fire-Resistant Glass: Isleworth questions
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.
Which rules apply to fire-rated glazing in Isleworth?
Building work in Isleworth follows the Building Regulations 2010 and Approved Document B, and occupied buildings are covered by the Regulatory Reform (Fire Safety) Order 2005.
How quickly can you survey in Isleworth?
Survey timing in Isleworth 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.
Related
Related services in Isleworth
E · EW
Integrity Fire Glass (E & EW)
E and EW glass where flames and hot gases must be stopped.
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like-for-like
Broken Fire Glass Replacement
Cracked or broken fire glass replaced to the original specification.
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E 30 – EI 120
Fire-Rated Glazed Screens
Internal glazed screens that keep compartments and corridors protected.
Learn more →Process
How a Isleworth job runs
Tell us what you have
Send drawings, a fire risk assessment action or photos of the glass marks.
Survey
We visit Isleworth to measure, record existing marks and check the frames and substrate.
Written proposal
We set out the system, glass, evidence and programme, with a fixed price.
Complete and document
Work is completed to the manufacturer's details and documented for your records.