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 · AL8
Fire-Resistant Glass across Welwyn Garden City
We provide fire-resistant glass in Welwyn Garden City and across Hertfordshire, working from the classification your building needs and handing over the evidence that proves what was fitted.
E 30 – EI 120AL8England
Quote for Welwyn Garden City
Tell us what you need. We reply with next steps and a guide price.
What our fire-resistant glass service includes in Welwyn Garden City
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.
- 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
- Intumescent glazing seals, tapes and gaskets to the tested specification
What to check before ordering fire-resistant glass in Welwyn Garden City
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.
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.
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.
Which rules apply to fire-resistant glass in Welwyn Garden City?
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.
Welwyn Garden City coverage and nearby towns
Whether the building is in central Welwyn Garden City or the wider AL8, AL7, AL6, AL10 districts, we can survey and quote. We also cover Hatfield, Hertford, St Albans. Welwyn Garden City is about 21 km from Watford, the largest town in our Hertfordshire coverage.
Fire glass in HatfieldFire glass in HertfordFire glass in St AlbansFire glass in HarpendenFire glass in Stevenage
What you can expect in Welwyn Garden City
Rated systems, not just rated glass
Every quote in Welwyn Garden City 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.
Work around occupied buildings
We can phase work in Welwyn Garden City around residents, staff or pupils, with out-of-hours options.
Building types we cover in Welwyn Garden City
Fire-resistant glass applies to many building types in Welwyn Garden City, including blocks of flats and industrial units.
Questions about fire-resistant glass in Welwyn Garden City
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.
Can you match glass that is already installed?
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.
Can you price fire-resistant glass in Welwyn Garden City 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 Welwyn Garden City?
Yes. We survey and install in Welwyn Garden City and across Hertfordshire, including the AL8 district and nearby Hatfield.
Related
Related services in Welwyn Garden City
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
From enquiry to handover in Welwyn Garden City
Tell us what you have
Send drawings, a fire risk assessment action or photos of the glass marks.
Survey
We visit Welwyn Garden City to measure, record existing marks and check the frames and substrate.
Written quote
You receive a written quote naming the tested system and classification.
Install and hand over
Installation to the system details, then a handover pack with photographs and evidence.