Skip to Content

Mandatory Window Inspection Scheme

Under the Mandatory Window Inspection Scheme (MWIS), owners of buildings aged 10 years or above (except domestic buildings not exceeding 3 storeys) and served with statutory notices are required to appoint a Qualified Person (QP) to carry out the prescribed inspection and supervise the prescribed repair works found necessary of all windows of the building.

Where a prescribed repair is required, the owners concerned must appoint a registered contractor to carry out the prescribed repair under the supervision of a QP.

Learn more about MWIS

Upcoming briefing sessions

29May

All briefing sessions

People involved

Qualified Persons and Registered Contractors

Qualified Persons and Registered Contractors

Learn more
Property Owners and Owners' Corporations

Property Owners and Owners' Corporations

Learn more

Keep your windows safe

The proper ways of using, maintaining and repairing their windows.

Window Maintenance
Windows Maintenance

Special notice

Mobile apps

Start to use MBIS/MWIS - Quick Guide for MBIS/MWIS

Start to use Quick Guide for MBIS/MWIS

app store

google play

Further enquiry

Private Premises

Further enquiry
BD Hotline 2626 1616 (Handled by “1823”, operating 24 hours)
Email enquiry@bd.gov.hk
Address G/F, Buildings Department Headquarters, North Tower, West Kowloon Government Offices, 11 Hoi Ting Road, Yau Ma Tei, Kowloon
Service hours Monday to Friday, 8:30 a.m. - 5:30 p.m.

Where buildings / premises that undergo prescribed inspection / repair under MBIS / MWIS fall within the boundary of Home Ownership Scheme (HOS) courts, Tenants Purchase Scheme (TPS) estates or Public Rental Housing estates, please submit the specified forms to The Independent Checking Unit of Office of the Permanent Secretary for Transport and Housing (Housing) by post or in person for processing.

Address of The Independent Checking Unit of Office of the Permanent Secretary for Transport and Housing (Housing):

8/F, Lung Cheung Office Block, 138 Lung Cheung Road, Wong Tai Sin, Kowloon

Office hours:

Monday to Friday, 8:30 a.m. - 5:15 p.m.
Saturday, Sunday and Public Holidays: Closed

Please visit the following web-address to check which Estate / Court in the List of Housing Estates/Courts/Facilities are subject to the control of the Buildings Ordinance:

http://www.housingauthority.gov.hk/en/business-partnerships/resources/index.html

Background information

Top