Glass Doors & Fire Door Replacement

Service Overview

Glass & Fire-rated Doors

We specialize in office glass doors, shopfront design and compliant fire doors, offering practical advice on everyday access, displays and statutory requirements.

Office glass doors provide transparent space separation.
Shopfront glazing improves displays.
Fire doors protect corridors, rear stairs and other required locations.

Glass doors emphasize clarity, hardware capacity and smooth operation. Fire doors are safety components requiring rated performance, self-closing, suitable hinges, seals, opening direction and certificates. They depend on being able to close: wedged-open doors, incomplete closure or excessive gaps compromise protection.

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Frameless office glass door with patch fittings and floor spring — See more glass and fire door project photographs.

Glass door styles

Six common styles and applications

Style	Method	Suitable Situation
Frameless glass doors	Patch fittings and floor spring, with pre-drilled glass.	Offices, shops and displays; clear appearance, with holes fixed before processing.
Framed glass doors	Aluminium or steel frames support the glass.	Locations needing acoustic seals or a specified fire-rated system; greater installation tolerance.
Top-hung sliding glass doors	Overhead tracks and rollers move panels sideways.	Narrow corridors, meeting rooms and partitions where swing space is limited.
Automatic glass doors	Sensors with motorized sliding mechanisms.	Shops, clinics and lobbies; plan power-failure and fire-alarm operation.
Shopfront doors and display windows	Large fixed glazing with door panels.	Street-level shops; consider clear width, weight and cleaning access.
Double glass doors	Two leaves with meeting seals or a central post.	Wide entrances and goods access.

Coordinate doors with glass partitions, such as meeting-room walls and sliders, and shopfronts and mirror finishes for shared measurements and installation.

Hardware specification

Floor springs, patch fittings and components

Reliable, smooth operation depends greatly on the hardware.

Floor springs

Support weight and control closing. Large, heavy panels need suitable capacity to avoid incomplete closure or oil leakage.

Top and bottom patch fittings

Connect glass to the floor spring and top pivot. Match thickness and holes precisely; loose fittings tilt doors and stress glass edges.

Locks and floor bolts

Include centre locks, bolts and hook locks. Escape-route doors must open from inside without a key; egress takes priority.

Handles and rails

Handle placement affects opening leverage and comfort. Horizontal rails also make transparent glass easier to see.

Door closers

For framed and fire doors, adjust speed and force for complete closure without slamming.

Automatic mechanisms

Maintain sensors, belts, rollers and controllers; clean tracks and sensor zones, test anti-trap operation and plan power failure.

Glass Specifications

Glass selection, testing and visual markings

Glass doors usually use toughened glass; laminated or toughened laminated glazing improves fragment retention. Where glazing also acts as a protective barrier under regulation 8, Department conditions require impact testing to at least BS EN 12600:2002 Class 1 with no glass breakage.

Department conditions specify ISO 9001 manufacture, heat-soaking to BS EN 14179-1:2016 or equivalent and thermocouple calibration every 6 months, addressing small NiS spontaneous-breakage risks. See shower screens and glass barriers.

Make transparent doors visible. Reflections can make large clear panes appear to be an open passage. Eye-level frosted bands, film, logos or rails help prevent collisions, especially in busy shops, schools, clinics and elderly facilities, and reduce breakage and repairs.

Glass	Properties	Door application
Toughened glass	Higher strength; breaks into small particles.	A common door choice; specify heat-soaked products.
Toughened laminated glass	Combines strength with fragment retention.	High-traffic entrances with greater safety requirements.
Frosted / translucent glass	Privacy and a natural visual cue.	Meeting rooms, toilets and partial door panels.
Low-iron glass	Less colour tint and greater clarity.	Premium shopfronts and displays.
Fire-resistant glass	Tested fire performance within a compatible frame system.	Fire-door vision panels; ordinary glass is unsuitable.

Processed toughened glass cannot be cut or drilled on site. Locate fittings, locks, handles, access control and bolts before processing, using accurate site measurements.

Fire door basics

Reading an FRR: X / Y / Z

Fire Resistance Rating is the period a component resists fire when tested to ISO 834, BS 476 Parts 20–24 or equivalent. It is expressed as X / Y / Z:

Three FRR criteria, in minutes
Symbol	Item	Meaning
X	Stability	Maintaining load-bearing capacity. Doors are non-load-bearing, so this is often shown as “-”.
Y	Integrity	Preventing flames and hot gases passing through.
Z	Insulation	Limiting temperature rise on the unexposed face.

-/60/60 means no stability requirement, 60 minutes' integrity and 60 minutes' insulation. Required ratings depend on the compartment or barrier, the Fire Safety Code 2011 and approved plans; owners should not choose 30 or 60 minutes arbitrarily.

Referenced tests include BS 476 Part 20:1987 for general principles and Part 22:1987 for non-load-bearing components.

Statutory requirements

Statutory and code requirements for fire doors

The core requirement: The Fire Safety Code 2011 requires all fire-rated doors to be self-closing and to comply with clause Part E, and remain closed. Self-closing means stored energy closes the door without human intervention until it is fully seated in its frame and engages any latch. Fire doors in protected required stairs and their protected lobbies must remain closed.

Key points under the Fire Safety (Buildings) Ordinance, Cap. 572

Relevant guidance requires fire doors to:

Remain installed and free from serious damage.
Provide adequate integrity and insulation ratings.
Have recognized, valid fire certificates and test reports.
Generally include intumescent seals.
Use stainless steel hinges.
Self-close, for example with an appropriate closer.
Open from inside without a key.
Generally open in the escape direction without obstructing the route.

The critical step when replacing a fire barrier

Replace a removed fire door or fixed fire window immediately. If this is impossible, protect the opening with a temporary barrier of equivalent fire resistance. Do not leave a compartment boundary open while awaiting delivery; coordinate materials and work first.

Where doors need to remain open

Do not use wedges, hooks or stored items. A compliant hold-open device under clause B13.8 must release on a fire signal. Firemen's lift doors also require electrically operated self-closing devices, at least 1-hour fire resistance and the applicable fire-door requirements.

This public-information summary is for reference. Determine ratings, opening direction and hardware from approved plans, fire design and the relevant directions or orders.

Fire safety directions

Responding to a fire safety direction or order

Cap. 572 improvements can include:

Fire-resistant protection of exit routes and stairs.
Improved exits to the street.
Provision or replacement of fire doors.
Improved stair widths.
Additional stairs.
Upgrading existing lifts to firemen's lifts.
Additional firemen's lifts.
Improved external-wall fire resistance and protected openings.
Fire-resistant separation between building parts.
Fire-resistant enclosures for non-emergency services in stairs.

Suggested practical sequence:

Check the direction: confirm locations, items and deadline.
Establish the rating: use approved plans and fire design, not appearance.
Choose documented products: obtain valid, recognized certificates and reports.
Plan replacement: have new or equivalent temporary barriers ready before removal.
Retain records: certificates, tests, installation records and completion photographs.
Obtain common-area consent: coordinate stairs, corridors and lobbies with the corporation or management and DMC.

We arrange documented fire doors to the required ratings and specify frames, stainless hinges, seals and closers, retaining product and installation records. Compartment changes, plan revisions or professional certification require the relevant Authorized Person or professionals first. Coordinate with any mandatory window inspection timetable.

Restaurants and commercial premises

Restaurant kitchen requirements: 60-minute FRR

Restaurant licensing commonly involves fire doors. Buildings Department guidance reproduced by FEHD includes:

Element	Requirement
Kitchen fire barriers	60-minute FRR.
Kitchen doors	Self-closing fire doors with 60-minute FRR.
Food hatches	Fire shutters with 60-minute FRR.

These requirements affect licensing. Check approved plans before changing partitions, replacing rated doors with ordinary doors or enlarging unprotected hatches. Shop and office door alterations must also preserve approved clear entrance widths and escape routes.

Understanding the differences

Fire doors, smoke-control doors and ordinary doors

Door type	Main function	Key requirements
Fire doors	Resist flames and heat transfer for a specified period.	Required integrity and insulation, certificates and reports, self-closing and closed operation, stainless hinges and intumescent seals.
Smoke-control doors	Limit smoke spread, often in corridors and stair lobbies.	Self-closing and closed operation; location and performance follow approved plans and fire design.
Ordinary doors, including glass doors	Space separation, access and display.	No fire rating; escape-route doors must still preserve safe opening direction and clear width.

These types are not interchangeable. Replacing a lobby fire door with an ordinary glass or timber door compromises compartmentation and may breach requirements. Choose a tested fire-door assembly with a rated vision panel if transparency is needed.

Problem diagnosis

Common fire door defects and glass door faults

Six common fire door defects

Wedged open: objects, wedges or hooks prevent closure during a fire.
Incomplete closure: failed closers, deformation or floor obstructions prevent full seating and latching.
Excessive gaps: allow smoke and fire through.
Missing or detached seals: compromise sealing.
Unauthorized alterations: ordinary glazing, pet flaps, grilles or hardware outside the tested configuration.
Missing documentation: no valid certificate or report proving the rating.

Six common glass door faults

Failed floor spring: incomplete closure, slamming or oil leakage.
Sagging or misalignment: loose fittings or worn pivots cause rubbing on floors or frames.
Chipped edges: stress concentrations can lead to breakage; replacement is required.
Sticking sliders: dirty tracks, worn or misaligned rollers.
False sensor activation: reflections or circulation patterns require adjustment.
Jammed locks: dirty or misaligned bolts; preserve keyless internal escape.

Our process

Eight steps from enquiry to completion

Enquiry: call 3709 2164 or WhatsApp 6686 7879 about installation, repair or fire-door replacement. Provide any fire direction or order.
Free measurement: check clear opening, floor levels, frames, swing space and direction; assess existing fire ratings, hardware and gaps.
Confirm requirements: specify glass style, fittings and holes, or fire rating and configuration against plans and directions.
Quotation: include door and glass specifications, hardware, certificates, reports, removal, frame repairs and programme.
Materials: process measured glazing with all holes defined; order rated doors and confirm delivery before replacement.
Removal and installation: replace fire barriers immediately or protect openings with equivalent temporary barriers. Install glass-door springs, frames, glazing and hardware in sequence.
Adjustment: set glass-door closing speed, force and locks; verify fire doors fully self-close and latch with suitable gaps.
Handover: supply certificates, reports, installation records and maintenance guidance.

Maintenance

Monthly and annual inspection checklist

Fire doors: self-closing

Release from fully open and verify complete closure and latch engagement—the essential functional test.

Fire doors: held-open condition

Remove unauthorized wedges, hooks or objects. Operational hold-open needs require a compliant device.

Fire doors: gaps and seals

Check enlarged gaps and intact seals; address deformation and loose hinges promptly.

Glass doors: floor springs

Check return movement, oil leaks and noises. Adjust slamming promptly to protect glass edges.

Glass doors: screws and tracks

Check fittings and handles; clean sliding tracks and inspect rollers.

Automatic doors: sensors and anti-trap operation

Clear sensor obstructions, test protection and ensure power-failure operation preserves escape.

Service coverage

Areas and property types

Our office is at Room F11, 10/F, How Ming Factory Building, 99 How Ming Street, Kwun Tong, Hong Kong. We serve Hong Kong Island, Kowloon and the New Territories.

Offices: frameless doors, meeting-room sliders, partitions and access control.
Shops and restaurants: shopfront glazing, automatic doors, kitchen fire doors and hatch arrangements.
Industrial and commercial buildings: corridor, rear-stair and plant-room fire or smoke doors, often following safety directions.
Homes and estates: appropriately rated entrance doors and common stair or lobby doors with corporation consent.

Frequently Asked Questions

Glass and fire door FAQ

30 questions about ratings, requirements, directions, hardware, diagnosis, quotations and maintenance.

What is FRR?

Fire resistance tested to ISO 834, BS 476 Parts 20–24 or equivalent. X / Y / Z represent stability, integrity and insulation in minutes.

What does “-/60/60” mean?

No stability requirement, 60 minutes' integrity and 60 minutes' insulation. Doors are non-load-bearing. Required ratings follow the Fire Safety Code 2011, compartment design and approved plans.

Must a fire door self-close?

Yes. Rated doors must self-close, meet Part E and remain closed. Stored energy must fully close and latch the door without intervention. Protected required stairs and lobbies must retain closed fire doors.

Can a hook or wedge hold a fire door open?

No. Use only an appropriate B13.8-compliant hold-open device that releases on a fire signal where permitted.

Which standards test fire doors?

ISO 834, BS 476 Parts 20–24 or equivalent, including Part 20:1987 and Part 22:1987. Obtain supplier reports and professional verification.

What does Cap. 572 require?

Intact, installed doors with adequate integrity and insulation, valid recognized certificates and reports, appropriate seals and stainless hinges, self-closing, keyless internal opening and generally escape-direction opening without obstruction.

What is special about replacement?

Install a new barrier immediately after removal or provide an equivalent temporary barrier. Do not leave the compartment opening unprotected.

What should I do after a fire safety direction?

Confirm the items, locations, deadline and ratings. Cap. 572 may require improved exits, stairs, fire barriers and doors, firemen's lifts, external-wall protection, compartmentation and enclosed non-emergency services. Arrange compliant documented products and retain certificates, tests and installation records.

What do restaurant kitchens require?

Guidance specifies 60-minute kitchen barriers, self-closing 60-minute doors and 60-minute food-hatch fire shutters. Check approved plans before licensing-related alterations.

How do fire and smoke doors differ?

Fire doors resist flames and heat with rated integrity and insulation. Smoke doors limit smoke spread. Both need appropriate self-closing and closed operation; approved plans determine location and performance. Do not interchange them.

Can a fire door have a glass window?

Yes, within a tested assembly using fire-resistant glass and compatible framing. Ordinary toughened or laminated glass is not fire glass; do not add a window independently.

What hinges are required?

Cap. 572 guidance specifies stainless steel hinges. Their number, specification and fixing must match the tested assembly; arbitrary substitutions can invalidate evidence.

Can a fire door be locked?

Escape-route doors must open internally without a key and generally in the escape direction without blocking the route. Follow approved plans and fire requirements for locks and access control.

Does my flat entrance need a fire door?

It depends on the building. Replacement with an adequately rated entrance door may be a Cap. 572 improvement. Consult actual directions, orders and plans for applicability and rating.

Should I choose framed or frameless glass?

Frameless patch-fitted doors offer clarity but need fixed pre-drilled holes. Framed systems offer tolerance, seals and lock options and may suit acoustic or specified fire-rated applications.

Which glass is used?

Usually toughened, sometimes laminated or toughened laminated. Barrier-function glazing requires BS EN 12600:2002 Class 1 testing without breakage. Toughened glass needs ISO 9001 manufacture and BS EN 14179-1:2016 or equivalent heat-soaking.

Why mark transparent doors?

Large clear panes can be mistaken for passages. Eye-level frosted bands, films, logos or rails reduce collisions, especially in busy or vulnerable-user premises.

What indicates a failed floor spring?

Poor return, incomplete closure, slamming, sagging, noises, sticking or oil leaks. Prompt replacement or adjustment prevents uneven loading and glass edge damage.

What faults affect automatic doors?

Sensor faults, unsuitable speeds, dirty tracks, worn rollers, loose belts, failed anti-trap functions or inability to open manually during power loss. Escape-route operation must follow fire design.

Sliding or hinged doors?

Sliding suits narrow corridors and avoids swing clearance. Hinged doors may seal better and accommodate locks and access control. Check track capacity and cleaning for sliders, and spring capacity and swing radius for hinged doors.

What matters for shopfront doors?

Match panel sizes to hardware; preserve approved clear width; plan glass divisions for cleaning and replacement; coordinate shutters and locks without blocking escape.

Can access control or closers be added?

Yes, but define all holes before toughening. Fire and escape doors must preserve keyless internal opening and safe fire-alarm and power-failure operation.

What should be checked on fire doors?

Full self-closing and latching, unauthorized hold-open objects, gaps, seals, hinges and closers, and readable labels and certificates. Protection relies on reliable closure.

How are glass doors maintained?

Clean tracks and fittings, tighten handles appropriately, inspect springs and glass edges, clear sensors and test anti-trap protection. Replace cracked glazing promptly.

Can I replace just the glass?

If fittings, springs and locks remain suitable and holes match exactly. Breakage may indicate faulty loading or alignment, so inspect hardware and frames too.

How long does the work take?

Glass-door work usually starts with measurement, direction, hardware and hole confirmation, followed by fabrication and installation. Fire doors need rating and delivery confirmation first. Shops and offices often schedule outside trading hours.

How is pricing calculated?

Glass-door costs depend on dimensions, number, glass, hardware, automation, removal, repairs and working hours. Fire-door costs also depend on rating, frame replacement, documentation and installation conditions. Free measurement and design quotations are available.

What consent is needed for common fire doors?

Obtain corporation or management consent and follow the DMC. Meet any direction's scope and deadline and retain records.

Which fire-door works can SK Fung undertake?

We arrange documented doors to directions or approved-plan ratings, with frames, stainless hinges, seals and closers, and installation records. Compartment alterations, plan revisions or professional certification require the appropriate professionals first.

What qualifications does SK Fung hold? Can I see projects first?

SK Fung holds MWC(W) 42/2014, window inspection qualifications and CIC-certified technicians. Browse the glass / fire door gallery and related partition, mirror and window projects.

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