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Fire Rated Doors
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FD30FD30SFD60FD90 / FD120Flat entranceCommunalStairwellHMOHomesRisersCommercialSchools & careTimberCompositeSteelGlazedDoubleScreensAcousticSecurityFire exitIronmongeryReplacementSupply & fit
E or EI glassVision panelsFD30–FD60

Glazed Fire Doors

A glazed fire door is a fire-rated doorset with fire-resistant glass, from a slim vision panel to a mostly glazed leaf. The glass, beads and glazing seals are tested together with the door, so the size and type of glass you can have depends on the doorset's evidence and on where the door sits.

Guide price £950–£1,700 per single doorset, supplied & fitted, ex VAT. Fixed after survey.

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White timber fire door with large clear fire glass vision panel in an office

Glazed Fire Doors at a glance

Glass typesIntegrity-only (E) or insulating (EI) fire-resistant glass
Panel sizesLimited to the doorset's tested glazing area
Glazing systemTested beads, intumescent glazing seals and fixings
Safety glassImpact performance for low-level glazing
AccessibilityVision panels to accessibility guidance (Approved Document M in England)
Guide price£950–£1,700 per single doorset, supplied & fitted, ex VAT
Elevation drawing of a glazed fire doors showing frame, intumescent seal line, hinges and hardware

Integrity-only or insulating glass?

Integrity-only (E) glass stops flames and smoke but lets heat radiate through. Insulating (EI) glass also limits heat transfer, so people can pass close to it. Approved Document B limits uninsulated glazing on some escape routes, so the door's location often decides the glass.

Why you can't just add glass

Cutting a vision panel into an existing fire door — or swapping the glass for ordinary safety glass — breaks the tested assembly. Glazed fire doors should arrive with the glass fitted using the tested system, or be glazed on site by a competent installer using the specified beads and seals.

Light, visibility and safety

Vision panels let people see who is on the other side, bring light into corridors and support safeguarding in schools and care settings. We specify panel position and size so the doorset meets Approved Document M as well as fire requirements.

Where are glazed fire doors used?

  • Corridor doors
  • Office and meeting room doors
  • School and care doors
  • Reception areas

Glazed fire doors questions

Can a fire door have a lot of glass?

Yes, within the glazed area the doorset was tested with. Fully glazed fire doors exist but cost more.

Is wired glass still used?

Rarely now. Modern clear fire-resistant glass gives much better visibility.

Can I replace broken fire glass myself?

It must be replaced with the same glass type and glazing system. We can supply and fit replacement glazing for doorsets we install.

Does fire glass need to be safety glass too?

In low-level and door glazing, yes — many fire glasses also meet impact safety classes.

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Glazed Fire Doors near you

We supply and fit glazed fire doors across the UK. Choose your area for local guide prices and the rules that apply there.

Get a fixed quote for your fire doors

Free measure survey. Certificate reference against every doorset.

Get a guide priceCall 0800 088 6248