Professional MWIS & MBIS Services
The Mandatory Building Inspection Scheme (MBIS) and Mandatory Window Inspection Scheme (MWIS), enforced by the Buildings Department since 2012, are statutory measures to improve building safety in Hong Kong. MBIS applies mainly to private buildings aged 30 years or above, requiring owners to appoint a Registered Inspector for prescribed inspections and necessary repairs. MWIS applies to private buildings aged 10 years or above, requiring owners to appoint a Qualified Person to inspect windows and supervise required repairs. Both schemes aim to prevent building deterioration and protect public safety. Owners must complete the required works within the specified period to avoid possible legal consequences.
MWIS Scheme Details
EJW provides professional Mandatory Window Inspection Scheme (MWIS) and Mandatory Building Inspection Scheme (MBIS) services. From inspections and digital reports to repairs and prescribed works, our one-stop service helps owners meet Buildings Department requirements efficiently and safeguard building safety.
Owner’s Responsibilities / Inspection Procedures
Upon receiving the statutory notice, owners must appoint a qualified person to carry out the prescribed inspection within the specified timeframe. Window inspection for individual units must be completed within 6 months from the date of the notice, while common area windows must be completed within 9 months. If repairs are found necessary after inspection, owners must appoint a registered contractor and have the works supervised by a qualified person. Upon completion, the required forms must be submitted to the Buildings Department.
EJW provides professional services by qualified persons to help you efficiently comply with the entire procedure.
Scope of the Scheme
The Mandatory Window Inspection Scheme applies to private buildings aged 10 years or above (excluding domestic buildings not exceeding three storeys). The Buildings Department selects target buildings each year based on a risk-based approach and issues statutory notices. The inspection covers windows in all individual units and common areas.
Legal Consequences of Non-Compliance
Failure to comply with a statutory notice may result in a fixed penalty of $1,500. Repeated offenders may be prosecuted and, upon conviction, face a maximum fine of $25,000 and imprisonment for 3 months. A further fine of $2,000 may be imposed for each day the offence continues. The Buildings Department may also carry out the works on behalf of the owner and recover the costs.
Engaging EJW’s professional team at an early stage can help avoid unnecessary penalties and ensure building safety. We guarantee that no unnecessary works will be carried out.
Appoint EJW’s Professional Team Immediately to Ensure Building Safety
Received a notice? We can provide qualified person services in the shortest possible time.
Computerised reports and one-stop repair services to avoid penalties and risks.
Contact Us NowMWIS Notice – Digital Window Inspection Report
Our Registered Inspector (QP) collects detailed on-site data, which is then processed by our technical team to produce a comprehensive computerised window inspection report. The report clearly illustrates the condition of every window, highlights problems, and provides specific remedial recommendations, enabling homeowners to fully understand the status of their windows.
Clear Inspection Results
More owners are choosing voluntary window inspections even without an MWIS notice. Our digital reports clearly show window conditions and recommended repairs.
Detailed Recommendations
Qualified professionals explain the findings directly to clients and record on-site photo evidence, with all key issues clearly presented in the report.
MBIS Notice – EJW Structural Engineer
EJW arranges registered structural engineers to inspect common areas, external walls and structural elements, professionally handling MBIS statutory notices and ensuring accurate assessment.
Engineer-Led Oversight
A structural engineer oversees the entire inspection process, from statutory notice to completion of prescribed repairs, helping owners meet all legal requirements.
On-Site Assessment
On-site assessment identifies potential risks and enables targeted MBIS solutions and timely repairs to safeguard long-term building safety.
Buildings Department Window Inspection Order & MBIS Process｜The 4-Step Mandatory Window Inspection Procedure
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Step 1｜Receive a Statutory Notice and Contact EJW
Send the MWIS statutory notice (commonly called a window inspection order) or the MBIS notice to EJW. We will review the notice type, deadline and property details, then arrange the appropriate next steps.
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Step 2｜Arrange a Statutory Inspection
EJW arranges the appropriate qualified professional or Registered Inspector to assess the windows or building, identify safety issues and determine any required repairs.
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Step 3｜Plan and Complete Required Repairs
If repairs are required, EJW provides a clear solution and quotation, then arranges qualified contractors to complete the works in accordance with statutory requirements.
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Step 4｜Inspection, Documentation and Completion
After the works are completed, the relevant professional carries out the final inspection and prepares the required documents for submission, completing the MWIS or MBIS process.
EJW Inspection & Repair Price List
Prescribed Window Inspection & Documentation Fee
(Valid MWIS notice, excluding outlying islands)
Prescribed Building Inspection & Documentation Fee
(Handled by EJW Structural Engineer)
Remarks: After inspection, quotations and recommendations are provided at no extra charge.
*Inspection fees for steel windows are subject to confirmation with our project officer.
(Regardless of the inspection result, EJW follows the required procedure. If the windows pass, the relevant documents will be submitted directly to the Buildings Department. If repairs are required, submission will be made after completion. Inspection and documentation fees remain fixed regardless of the result, with no additional charge for a passing inspection.)
Service Fee Includes:
- Buildings Department document handling
- Administration and document processing
Core Components
Waterproofing Components
Other services
Terms & Conditions
Prices include required insurance (scaffolding excluded).
Work areas must be cleared by the client, or extra charges may apply.
Extra charges may apply if no electricity is available.
Floors without lift access may incur extra charges.
Prices may change without notice. Please contact us for details.
Window waterproofing, grilles and screens: 3-year warranty. Window parts: 5-year warranty. Applies only to EJW works.
Prices are based on standard single-item works. Minimum charges may apply. Final fees are subject to EJW’s official quotation or confirmation.
HKEJW Website
Frequently Asked Questions
Q1｜What should I do after receiving an MWIS or MBIS notice?
Check the notice type and deadline, then contact a qualified professional. EJW can assist with inspection, repairs and follow-up procedures.
Q2｜What is the difference between MWIS and MBIS?
Both are statutory government inspection schemes, but their scope differs. The Mandatory Window Inspection Scheme (MWIS) covers the safety of a building’s windows, while the Mandatory Building Inspection Scheme (MBIS) covers common areas, external walls and other designated building elements.
Q3｜Do I need repairs immediately after receiving a notice?
Not necessarily. A statutory inspection is required first. Repairs are only needed where defects are identified.
Q4｜Can EJW handle the entire process?
When choosing a mandatory window inspection company, what matters most is whether it can handle the whole process end to end. EJW is familiar with both the works and the statutory procedures, and supports owners with individual units, whole-building window inspections and common areas alike — from interpreting the notice and professional inspection, to arranging the works and handling the follow-up documentation.
Q5｜Can a regular window repairer handle MWIS?
No. MWIS is a statutory process requiring qualified professionals and, where needed, qualified contractors for repairs and documents.
Q6｜Does MBIS mean the whole building must be repaired?
Not necessarily. Repairs are based on the Registered Inspector’s findings and only cover areas requiring attention.
Q7｜Is the process complete once repairs are finished?
Not always. Final inspection and required document submission may still be needed before the statutory process is complete.
Q8｜What happens if I ignore the statutory notice?
Owners should act within the stated deadline. Failure to comply may lead to further enforcement or legal action.
Q9｜What should I prepare before contacting EJW?
Prepare the statutory notice, property details and any available plans, inspection records or repair history.
Q10｜Why choose EJW for MWIS or MBIS?
EJW provides coordinated support from inspection and repairs to document handling, making the process simpler for owners.
Director Alvin Wong
EJW Professional Advantages: Qualified professionals and structural engineers provide one-stop services covering quotations, inspections, digital reports, repair supervision and document submission.
Qualified Professional Team
Professional and Qualified Team
Our experienced team is well-versed in the latest Code of Practice. They personally conduct inspections and provide on-site supervision.
Advanced Digital Reports
Innovative Computerised Report
Illustrated with clear diagrams and text, the report is easy to understand at a glance, enabling you to fully comprehend the condition of your windows.
5-Year Warranty & Structural Engineer Service
Window parts carry a 5-year warranty, while window waterproofing, grilles and screens carry a 3-year warranty. MBIS services are led by EJW structural engineers.