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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Hertfordshire · WD17
Fire-Resistant Glass for Watford buildings
For Watford 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.
E 30 – EI 120WD17England
Quote for Watford
Tell us what you need. We reply with next steps and a guide price.
What's involved with fire-resistant glass in Watford
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.
- Integrity with radiation control (EW) laminated glass
- Insulating (EI) intumescent-interlayer and gel-filled glass
- Integrity (E) glass: modified toughened, glass-ceramic and polished wired types
- Glazing beads and fixings to the frame manufacturer's details
Before you order fire-resistant glass: what matters
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.
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.
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.
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.
Areas we cover around Watford
Whether the building is in central Watford or the wider WD17, WD18, WD19, WD24, WD25, WD23 districts, we can survey and quote. We also cover Bushey, Rickmansworth, Borehamwood. Watford is the largest town in our Hertfordshire coverage.
Fire glass in BusheyFire glass in RickmansworthFire glass in BorehamwoodFire glass in RuislipFire glass in Harrow
What you can expect in Watford
Work around occupied buildings
We can phase work in Watford 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.
England rules applied
Designs follow the building and fire safety rules that apply in England, not a one-size-fits-all approach.
Watford building types
We can survey and quote for healthcare buildings, care homes and other building types in Watford.
FAQs for Watford
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.
How thick is fire-resistant glass?
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.
Can you price fire-resistant glass in Watford from photos?
We can give a guide range from photos and sizes, including a clear photo of any marks on the glass. A fixed price follows a survey.
Do you carry out fire-resistant glass in Watford?
Yes. We survey and install in Watford and across Hertfordshire, including the WD17 district and nearby Bushey.
Related
Related services in Watford
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 Watford job runs
Start with the brief
Tell us the rating required, sizes and building type, or ask us to find out.
Site visit
A survey in Watford confirms sizes, access, existing evidence and fixing conditions.
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.