Professional Window & Glass Works
Free site measurement, design and quotations.
Enquire NowSK Fung · Hong Kong · Kwun Tong
Mandatory Window Inspection, Aluminium Windows & Glass Works in Hong Kong
Buildings Department Registered Minor Works Contractor MWC(W) 42/2014, with window inspection qualifications. Our services cover mandatory window inspection, modern aluminium window replacement, window repairs and waterproofing, rooftop glass houses, interior glass partitions, glass balustrades, fire-rated doors, hotel-style shower screens and insect screens. We offer free on-site measurement, design and quotations, and handle Buildings Department submissions after inspection and repair.
About Us
Professional Skills, Fair Prices & Reliable Workmanship
SK Fung is a Buildings Department Registered Minor Works Contractor (Registration Certificate No. MWC(W) 42/2014) with window inspection qualifications. Our technicians hold aluminium window skills certificates issued by the Construction Industry Council Training Academy. With more than ten years of experience, we provide professional workmanship, fair prices, reliable maintenance and objective advice tailored to our customers' needs.
Services: modern aluminium window replacement, rooftop glass house design, interior glass partitions, cabins and storage cabinets, fire-rated doors, office glass doors, shopfront glazing, hotel-style shower screens and insect screens.
Free on-site measurement, design and quotations. Please call or WhatsApp us.
After window inspection and repair, we handle the owner's submission to the Buildings Department.
One Team from Window Inspection to Replacement
Hong Kong's dense buildings and humid, salty sea air accelerate wear in window hardware, seals and waterproofing joints. SK Fung has specialised in aluminium windows, glass and waterproofing for more than ten years. Common enquiries include appointing a Qualified Person after a mandatory window inspection statutory notice, diagnosing persistent window leakage, and arranging whole-home window replacement, interior glass partitions or hotel-style shower screens during renovation.
Our Registered Minor Works Contractor qualifications and in-house installation team allow inspection, repair, replacement and subsequent Buildings Department submissions to follow one coordinated process. Owners can work with one team throughout, reducing delays and disputes over responsibility.
Qualifications & Team
- Buildings Department Registered Minor Works Contractor: Registration No. MWC(W) 42/2014, for window minor works within the relevant registered classes.
- Window inspection qualifications: Acting as a Qualified Person under MWIS to carry out prescribed inspection and supervise prescribed repair.
- Certified technicians: Each technician holds an aluminium window skills certificate issued by the Construction Industry Council Training Academy.
- Submission support: We handle Buildings Department submissions after window inspection and repair.
- Repair and maintenance: Maintenance services and ongoing follow-up can be arranged for buildings and businesses.
Our Services
Aluminium Windows, Glass Houses & Complete Glass Works
Explore our established services, material options and project examples by category.
Glass Houses & Cabins
Rooftop glass house design, glass canopies, prefabricated cabins, rooftop storage rooms and custom storage cabinets.
Aluminium Windows, Sliding & Folding Doors
Mandatory window inspection, whole-home or single-sash replacement, retrofit windows, window repairs, waterproofing and hardware replacement.
Glass Balustrades
Glass barriers and handrails for balconies, staircases and rooftops, including laminated glass protective barriers.
Glass & Fire-rated Doors
Frameless, automatic and shopfront glass doors, plus fire-rated and smoke-stop doors meeting applicable requirements.
Mirror Works
Large mirror walls, gym and dance studio mirrors, shopfront displays and decorative glass finishes.
Glass Partitions
Residential and office glass partitions, sliding doors and meeting-room glass walls that admit natural light.
Shower Screens
Hotel-style shower screens, shower enclosures, leakage repairs and seal replacement.
Insect Screens
Concealed, roller and pleated insect screens, fall-prevention screens, baby safety nets and cat nets.
Mandatory Window Inspection Scheme · MWIS
Received a Window Inspection Notice? Understand the Deadlines
The following information is compiled from public documents issued by the Buildings Department, the Housing Bureau's Independent Checking Unit and the Legislative Council to help owners and owners' corporations understand the requirements.
What Is the Mandatory Window Inspection Scheme?
MWIS and the Mandatory Building Inspection Scheme were fully implemented on 30 June 2012 to address building disrepair and the risk of falling windows. Owners of private buildings aged ten years or more, excluding domestic buildings not exceeding three storeys, who receive statutory notices must appoint a Qualified Person to carry out prescribed inspection of all windows and supervise any prescribed repair considered necessary afterwards.
An owner's legal obligation arises after service of the statutory notice. The Buildings Department usually sends owners or owners' corporations a pre-notification letter before issuing the statutory notice, generally one to two months later, to allow preparation.
Window Inspection Deadlines
| Situation | Appointment of a Qualified Person | Completion of Prescribed Inspection & Repair |
|---|---|---|
| Windows in Individual Units | Within 3 months | Within 6 months |
| Common-part windows, with or without an owners' corporation | Within 3 months | Within 9 months |
| Buildings without an owners' corporation | Within 3 months | Generally an additional 3 months for preparation |
| Extension Required | Apply in writing to the Buildings Department or Independent Checking Unit with reasonable grounds | |
Who Can Act as a Qualified Person?
Qualified Persons are registered with the Building Authority and include Authorized Persons, Registered Structural Engineers, Registered Inspectors, Registered General Building Contractors and Registered Minor Works Contractors registered for the relevant window classes, types and items. The Qualified Person must personally carry out the prescribed inspection to determine whether windows are dangerous or liable to become dangerous. Where repair is needed, the owner must appoint a Registered General Building Contractor or Registered Minor Works Contractor to perform it under the Qualified Person's supervision.
SK Fung's Registered Minor Works Contractor number is MWC(W) 42/2014. We can coordinate inspection and installation. See our aluminium window and door services or contact us for details.
Consequences of Missing the Deadline
| Item | Details |
|---|---|
| Warning Letter | The Buildings Department generally issues a warning letter urging owners to arrange compliance |
| Fixed Penalty | A fixed penalty notice of HK$1,500 may be issued |
| Prosecution for Repeated Non-compliance | Upon conviction: a fine of HK$25,000 and 3 months' imprisonment, plus HK$2,000 for each day the offence continues |
| Government-arranged Work | The Buildings Department may appoint consultants and contractors for inspection and repair, recover the work and supervision costs from owners or the owners' corporation, and impose a surcharge not exceeding 20% of those costs |
| Unqualified Inspection | A Qualified Person who fails to inspect personally may be fined HK$250,000; unqualified inspection may attract a HK$100,000 fine and 6 months' imprisonment |
In late 2024, the Government proposed Buildings Ordinance amendments to the Legislative Council, including increasing the maximum fine for non-compliance with an MWIS notice from HK$25,000 to HK$100,000 and the fixed penalty from HK$1,500 to HK$3,000. These are legislative proposals; owners should refer to the Buildings Department's latest announcements.
Window Inspection versus Building Inspection
| Comparison | Mandatory Window Inspection · MWIS | Mandatory Building Inspection · MBIS |
|---|---|---|
| Inspection Scope | All windows in the building, including units and common parts | Building structure, external walls, common facilities and drainage systems |
| Building Age Threshold | Private buildings aged ten years or more, excluding domestic buildings not exceeding three storeys | Private buildings with a higher age threshold |
| Responsible Professional | Qualified Person, including appropriately registered minor works contractors | Registered Inspector |
| Penalties for Non-compliance | HK$1,500 fixed penalty; repeated non-compliance upon conviction: HK$25,000 and 3 months' imprisonment | Upon conviction: HK$50,000 and 1 year's imprisonment |
Common Defects & Prescribed Repairs
- Hinges: Rust, looseness, failed screws or replacement with unsuitable non-stainless-steel components are common defects.
- Frame deformation or corrosion: Severe oxidation, cracked joints or separation from the wall.
- Glass: Chipped edges, cracks, insecure fixing or missing glazing seals.
- Failed hardware: Faulty latches, handles, locks or rollers that no longer secure the window properly.
- Aged seals and silicone: Hardened or shrinking seals and cracked silicone causing leakage.
After inspection, we identify required repairs and explain their causes, distinguishing mandatory repairs from recommended improvements. Owners can then decide on hardware repair or window replacement.
Arrangements for Owners' Corporations & Buildings
Common-part windows in staircases, corridors, rooftops and lobbies are normally coordinated by the owners' corporation or management company, with a nine-month deadline. Preparation includes appointing a Qualified Person, approving the work and cost-sharing arrangement at an owners' meeting, and scheduling access floor by floor. SK Fung supports building-wide inspection, unit inspection records, repair quotations and Buildings Department submissions.
Statutory information is for reference. The requirements and deadlines in the statutory notice served by the Buildings Department or Housing Bureau's Independent Checking Unit take precedence for each case.
Book Window Inspection & a Free Quotation WhatsApp 6443 1983
Aluminium Window Works
Window Replacement, Repairs & Waterproofing
From one sash to a whole-home replacement, leakage repair and hardware maintenance, the solution depends on window type, floor level and the cause of leakage.
Full-frame Replacement versus Retrofit Windows
| Method | Suitable Situation | Features |
|---|---|---|
| Full-frame Removal & Replacement | Severely deformed or corroded frames, or leakage at the frame-to-wall joint | Allows comprehensive waterproofing repairs; involves more dust, noise, time and plaster repairs |
| Retrofit Replacement | Existing frames and surrounding walls remain structurally sound | A new frame is fitted over the old one, reducing disruption and time; joint detailing and a slightly smaller clear opening require attention |
| Single-sash Replacement | Damage to an individual sash, broken glass or sash deformation | Lowest cost, while retaining the existing frame and consistent appearance |
| Whole-home Window Replacement | Renovation, moving into a property or replacing old steel windows with aluminium | Standardises frame series, glass specifications and opening methods while addressing ageing windows together |
Frame Series & Window Types
Aluminium frame series are commonly identified by product codes, such as the locally used “50 series”. Differences include profile thickness, cross-section design, supported glass thickness and wind-pressure performance. Sliding windows save space in corridors and kitchens; top-hung windows provide ventilation and rain protection in kitchens and bathrooms; casement windows offer a larger opening and good sealing; fixed windows provide daylight without ventilation. Louvres, window grilles and sills can also be coordinated.
Glass Specifications
- Toughened glass: Higher strength and granular fragmentation when broken; commonly used for shower screens, glass doors and balustrades.
- Laminated glass: An interlayer retains broken fragments, making it suitable for elevated locations and protective barriers.
- Insulating double glazing: An air space between two panes improves thermal insulation and reduces condensation.
- Acoustic glass: Helps address noise near busy streets, major roads or flight paths.
- Low-E glass: A coating reflects infrared radiation; useful for west-facing rooms and large glazed areas.
- Frosted glass: Admits daylight while providing privacy, commonly used in bathrooms and partitions.
Window Repairs: Hardware, Seals & Waterproofing
Many leaks can be addressed through targeted repairs. Common work includes hinge replacement, preferably using stainless steel, latch replacement, handles and locks, rollers, weather seals, silicone resealing, clearing drainage holes and glass replacement. Wind noise, sticking sashes, stiffness and slight deformation often result from worn rollers, dirty tracks or loose hardware and can improve through adjustment or component replacement.
Finding the Source of Leakage
- Check silicone at frame-to-wall joints for cracking or detachment.
- Check weather seals for hardening, shrinkage or displacement.
- Check whether blocked drainage holes cause water to build up and flow indoors.
- Check sash-to-frame fit and whether the hardware locks fully.
- Check external wall plaster and sills for cracks admitting water.
Identifying the cause before repair helps avoid continued leakage after sealing work. If exposed or high-level positions require scaffolding or a suspended working platform, the quotation explains safety measures and coordination with building management.
Explore Aluminium Windows & Doors Add Insect & Safety Screens
Glass Works
Rooftop Glass Houses, Partitions & Balustrades
Glass and aluminium systems can be used in homes, offices, shops and rooftop spaces.
Rooftop Glass Houses & Canopies
Rooftop construction involves ownership, the deed of mutual covenant, structural loading and the Buildings Ordinance. The permitted scope must be confirmed first. Design covers glass, aluminium structure, waterproofing joints, drainage falls and ventilation to address summer heat and rainwater backflow. See Glass Houses & Cabins.
Interior & Office Glass Partitions
Glass partitions divide space while retaining daylight. Offices can select laminated or double glazing for meeting-room acoustic needs and add sliding glass doors. See Glass Partitions.
Glass Balustrades & Handrails
Glass barriers on balconies, staircases and rooftops retain open views. Toughened or laminated glass is commonly fitted with stainless-steel clamps or aluminium base channels; fixing arrangements and height requirements need attention. See Glass Balustrades.
Glass Doors & Shopfronts
Frameless, automatic and shopfront glass doors provide a transparent frontage. Door fittings, floor springs, locks and glass replacement can be coordinated. See Glass & Fire-rated Doors.
Hotel-style Shower Screens
Custom shower glazing requires water retention, drainage and hinge detailing. Many leaks can be repaired by replacing seals, resealing silicone and adjusting hinges. See Shower Screens.
Mirror Works
Mirror walls create a sense of space in entrances, corridors, gyms and dance studios. Options include polished edges, low-iron mirrors and anti-fog treatments with suitable secure fixing. See Mirror Works.
Fire Doors · Insect Screens · Safety Nets
Fire-rated Doors & Window Safety Accessories
Fire-rated & Smoke-stop Doors
Fire doors generally require a recognised Fire Resistance Rating label, a complete frame and hardware assembly, and a self-closing device. They must remain closed and must not be held open with objects or hooks. When a Fire Services Department or Buildings Department direction, order or inspection requires replacement, select a compliant door and retain product certification and installation records. Industrial buildings, offices and food premises are common applications. See Glass & Fire-rated Doors.
Choosing Insect Screens
- Concealed screens: Almost invisible when retracted, for rooms where appearance matters.
- Roller screens: Convenient opening and closing with straightforward cleaning.
- Pleated screens: Suitable for large windows, full-height glazing and sliding doors.
- Fine-mesh screens: Balance insect protection and ventilation.
Fall-prevention Screens, Baby Safety Nets & Cat Nets
Safety nets aim to prevent children, pets or objects from falling, using stronger materials and fixings than ordinary insect screens. Installation must preserve normal window operation and emergency escape, and allow access to hinges and hardware for future mandatory window inspection. See Insect & Safety Screens.
Why Choose SK Fung?
Registered Qualifications, Maintenance & a Clear Process
Registered with the Buildings Department
Registered Minor Works Contractor No. MWC(W) 42/2014, with qualifications to act as a Qualified Person under MWIS.
Certified Technicians
Each technician holds an aluminium window skills certificate from the Construction Industry Council Training Academy. Work is planned for the actual window type and floor conditions.
Submission Support
We handle Buildings Department submissions after inspection and repair, including inspection and repair records.
Free Site Measurement
Free site inspection, measurement, design and quotation, with work items, materials and installation methods agreed before work starts.
Repairs & Maintenance
Repair and maintenance services, including ongoing arrangements for buildings, owners' corporations and businesses.
Objective Professional Advice
Advice tailored to your needs, explaining required repairs and optional improvements.
Our Six-step Process
- Enquiry: Call 3709 2164 or WhatsApp us with the building type, number of windows and details of any statutory inspection notice.
- Free site inspection and measurement: Assess window types, frame condition, leakage traces and access.
- Design and quotation: Specify the work, aluminium and glass, hardware, installation method—indoors, scaffolding or suspended platform—and duration.
- Confirmation and coordination: Arrange working times, lift use and access with the owner, owners' corporation or management office.
- Work: Certified technicians carry out inspection, repair or replacement, with protection and clean-up.
- Acceptance, submission and maintenance: Check the completed work, handle Buildings Department submissions for MWIS cases and explain maintenance requirements.
Service Areas
On-site Services Across Hong Kong Island, Kowloon & the New Territories
Our office is in Kwun Tong. We serve homes, industrial and commercial buildings, offices and shops.
- Kowloon: Residential and industrial premises around Kwun Tong, Kowloon Bay, Ngau Tau Kok, Lam Tin, Yau Ma Tei, Mong Kok, Sham Shui Po, Hung Hom and Kowloon City, as well as Tseung Kwan O.
- Hong Kong Island: Central and Western District, Wan Chai, Causeway Bay, North Point, Quarry Bay, Shau Kei Wan, Aberdeen and Southern District.
- New Territories: Sha Tin, Tai Po, Tsuen Wan, Kwai Chung, Tuen Mun, Yuen Long, Sheung Shui, Fanling and Sai Kung.
Building age and exposure vary by area. Coastal and high-rise properties more often face hardware corrosion and wind-pressure issues; older tenement buildings commonly need steel-to-aluminium window replacement and sill leakage repairs. Industrial buildings often require common-part inspection, fire doors and large glazing repairs. Book a site inspection or view completed projects.
Frequently Asked Questions
Window Inspection, Aluminium Windows & Glass Works FAQ
These twenty questions cover common enquiries from owners, owners' corporations and businesses.
What is the Mandatory Window Inspection Scheme?
MWIS and MBIS were fully implemented on 30 June 2012. Owners of private buildings aged ten years or more, excluding domestic buildings not exceeding three storeys, who receive statutory notices must appoint a Qualified Person to inspect all windows and supervise any prescribed repairs considered necessary.
How long do I have after receiving a statutory notice?
From the notice date, owners must appoint a Qualified Person within three months and complete inspection and required repair within six months. Common-part windows have a nine-month deadline. Buildings without an owners' corporation are generally given an additional three months for preparation.
Is a pre-notification letter a statutory notice?
No. It provides advance notice for preparation. The statutory notice is generally issued one to two months later, and legal obligations arise after it is served. Owners can use the earlier letter to compare quotations and arrange meetings.
Who qualifies as a Qualified Person?
Authorized Persons, Registered Structural Engineers, Registered Inspectors, Registered General Building Contractors and Registered Minor Works Contractors registered for the relevant window classes, types and items. The Qualified Person must inspect personally. SK Fung is a Buildings Department Registered Minor Works Contractor, No. MWC(W) 42/2014.
What happens if I do not comply with the statutory notice?
The Buildings Department generally sends a warning letter before issuing a HK$1,500 fixed penalty notice. Repeated non-compliance may lead to prosecution: upon conviction, HK$25,000 and three months' imprisonment, plus HK$2,000 for each continuing day. Government-arranged work may also be charged to owners, with a surcharge not exceeding 20%.
How does window inspection differ from building inspection?
MWIS concerns all windows and requires personal inspection by a Qualified Person for private buildings aged ten years or more. MBIS concerns the structure, external walls and common facilities, has a higher age threshold and requires a Registered Inspector. MBIS non-compliance upon conviction may attract HK$50,000 and one year's imprisonment.
Can obstructed windows be exempted from inspection?
No. Decoration or furniture obstructing windows is not a reason for exemption under MWIS. Remove obstructions beforehand so the Qualified Person can inspect all windows and hardware.
Who submits the inspection and repair records?
The Qualified Person submits the inspection and repair reports using the Buildings Department's specified forms. After SK Fung's inspection and repair, we handle the submission and the owner retains the documents for reference.
How are inspection and window works priced?
Pricing depends on the number, type and size of windows, frame series, glass, replacement hardware, floor level and access method—indoors, scaffolding or suspended platform. Our free measurement and design quotation lists the items for approval before work begins.
Must the existing frame always be removed?
No. Retrofit replacement can reduce time, dust and noise where the existing frame and surrounding walls are sound. Severely deformed or corroded frames, or leakage at frame-to-wall joints, may require full-frame replacement.
What commonly causes window leakage?
Aged silicone at frame-to-wall joints, hardened seals, blocked drains, poor sash-to-frame fit, loose hinges or external wall cracks. Diagnose the cause before deciding on sealing, seal replacement, hardware adjustment or frame reconstruction.
Can hardware be replaced individually?
Yes. Hinges, latches, handles, locks, rollers and seals can be replaced separately. Corroded or loose hinges and aged seals are common MWIS defects and often require component repair rather than full replacement. Stainless-steel hinges are recommended for durability.
What glass options are available?
Toughened, laminated, insulating double glazing, acoustic, Low-E and frosted glass. Shower screens, doors and barriers commonly use toughened or laminated glass; noisy street-facing properties may benefit from acoustic or double glazing, and west-facing rooms from Low-E glass.
What can be done about wind noise or sticking windows?
Wind noise often comes from aged seals or gaps and may improve with new seals and hardware adjustment. Sticking or stiff sashes can result from worn rollers, dirty tracks or deformed hinges; cleaning and component replacement may resolve them.
What should I consider for a rooftop glass house?
Ownership, the deed of mutual covenant, structural loading and the Buildings Ordinance must be checked before confirming permitted construction. Design covers glazing, aluminium structure, waterproofing, drainage falls and ventilation. A site visit is recommended before design and quotation.
What are the requirements for fire doors?
Generally a recognised FRR label, complete frame and hardware, and a self-closing device. Doors must remain closed and unobstructed. Follow any Fire Services Department or Buildings Department direction or order, and retain product certification and installation records.
Should a leaking shower screen be repaired or replaced?
If the glass is sound, replacing bottom seals, resealing silicone and adjusting hinges or rollers may resolve leakage. Chipped glass, corroded or deformed hinges, or an inadequate water-retaining design may call for a new custom shower screen.
How do insect screens differ from safety nets?
Insect screens prioritise insect protection, ventilation and daylight. Fall-prevention screens, baby safety nets and cat nets use stronger materials and fixing arrangements. Both must preserve window operation and future inspection access.
How are windows replaced in high-rise units?
Many residential jobs can be carried out indoors with safety harnesses and temporary enclosure at exposed edges. Large, exposed or full-frame replacements may need scaffolding or suspended access, coordinated with management. The quotation explains the arrangements.
How should an owners' corporation arrange common-part inspection?
The corporation or management company coordinates inspection and completion within nine months of the statutory notice. This includes appointing a Qualified Person, approving work and cost sharing at an owners' meeting, and arranging floor-by-floor access. SK Fung supports inspections, unit records, repair quotations and submissions.
Contact & Quotations
Free On-site Measurement, Design & Quotation
Provide the building address, number of windows and any statutory inspection notice to help us arrange a visit.
- Company: SK Fung Aluminium Window, Glass and Waterproofing Works
- Registration: Buildings Department Registered Minor Works Contractor, MWC(W) 42/2014
- Address: Room F11, 10/F, How Ming Factory Building, 99 How Ming Street, Kwun Tong, Hong Kong
- Phone: 3709 2164 / 6686 7879 / 6443 1983
- WhatsApp：6686 7879／6443 1983
- Fax: 3956 4569
- Email: skfung.hk@hotmail.com
Explore Each Service
Aluminium Windows & Doors Mandatory inspection, replacement, repairs, waterproofing, hardware and glazing
Glass Houses & Cabins Rooftop glass houses, canopies, cabins and custom storage
Glass Partitions Residential and office partitions, sliding doors and glass walls
Glass Balustrades Balcony and staircase barriers and glass handrails
Glass & Fire-rated Doors Frameless and automatic doors, fire-rated and smoke-stop doors
Mirror Works Mirror walls, shopfronts and decorative glass
Shower Screens Hotel-style enclosures and leakage repairs
Insect & Safety Screens Concealed, roller and pleated screens, fall-prevention and cat nets
Completed Projects Photographs of window, glass house, partition, balustrade and shower screen work
Contact Us Arrange free site measurement and a quotation
Explore our window inspection, aluminium window repair and replacement, glass installation, fire-rated door, shower screen and insect screen services. Contact SK Fung for site measurement and a quotation based on your property's needs.
