Website Maintenance & Service Disruption

The City will be performing scheduled maintenance from 9 to 10 PM on Wednesday, December 17, 2025.

The following services will be unavailable:

• All interactive forms

Information pages on the Portal will not be affected. The outage is required to complete planned system maintenance.

We thank you for your patience in this matter. If you have any questions or concerns, please contact customerservice@markham.ca or call 905.477.5530.