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 · HA2
Fire-Resistant Glass in Harrow
Fire-resistant glass in Harrow is usually needed for one of three reasons: new building work, a change to an existing fire-resisting wall, or defects found in an inspection. We handle all three.
E 30 – EI 120HA2England
Quote for Harrow
Tell us what you need. We reply with next steps and a guide price.
What's involved with fire-resistant glass in Harrow
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.
- Impact-classified build-ups for critical locations
- Integrity (E) glass: modified toughened, glass-ceramic and polished wired types
- Insulating (EI) intumescent-interlayer and gel-filled glass
- Intumescent glazing seals, tapes and gaskets to the tested specification
Before you order fire-resistant glass: what matters
Impact safety still applies
Glass in doors, side panels and low-level positions has to meet impact safety rules as well as the fire rating. Most modern fire glass carries an impact classification; old wired glass usually does not.
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.
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.
Where we work around Harrow
Coverage around Harrow includes the HA2, HA1, HA3, HA0, HA9, HA5 districts and nearby Brent, Wembley, Northolt. Harrow is one of the Greater London districts we cover.
Fire glass in BrentFire glass in WembleyFire glass in NortholtFire glass in GreenfordFire glass in Ruislip
What every Harrow quote includes
England rules applied
Designs follow the building and fire safety rules that apply in England, not a one-size-fits-all approach.
Rated systems, not just rated glass
Every quote in Harrow identifies the tested system: frame, glass, beads, seals and fixings, within its pane-size limits.
Honest about unknowns
If an existing frame in a Harrow building has no traceable evidence, we say so and price the options rather than guess.
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 Harrow
We can survey and quote for retail and leisure units, student accommodation and other building types in Harrow.
FAQs for Harrow
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.
Do you supply fire glass only?
Our service is supply and installation, because the rating depends on how the glass is fitted. For trade buyers we can quote supply of cut-to-size panes with the matching glazing materials on request.
Do you carry out fire-resistant glass in Harrow?
Yes. We survey and install in Harrow and across Greater London, including the HA2 district and nearby Brent.
Do you work on occupied buildings in Harrow?
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 Harrow
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 Harrow 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 Harrow and check what the existing frames can accept.
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.