Richmond Hill water damage, fire & mould restoration
If sewage is backing up into a Richmond Hill home, call the City at 905-771-8800 right away. Public Works Operations staff are on call 24/7 for sewer backups. For other flooding on private property, call your insurer. Guardian extracts the water, dries the structure and documents the loss.
Sewer backup in Richmond Hill
- Call the City at 905-771-8800 when there is a sewage backup in your home. The City sends an authorized drain contractor.
- Sewer Servicing Agreement: the property owner signs it before work starts and agrees to pay for the service call if the cause is on the private side. The City lists the fee as $754 plus HST.
- Private-side problems are the owner's responsibility, and the City says owners must call a licensed plumbing or drain contractor for further work.
Other flooding on private property
The City's storm guidance is to call your insurance provider for flooding on private property, and to be careful with water from a backup because it may contain sewage.
Backwater Valve Subsidy Program
Eligible Richmond Hill residents can apply for up to $1,500 towards installing a backwater valve. Subsidies depend on available funding and are first-come, first-served. This is plumbing work, separate from restoration.
Where Guardian fits
A plumber, the municipality or the region deals with the pipe or sewer itself. Guardian deals with what the water has already reached: we extract it, map moisture in floors and walls, run monitored drying, and keep photo and moisture records for your insurer. We also handle fire and smoke damage and mould remediation.
Official sources
- City of Richmond Hill: Sewer Backups
- City of Richmond Hill: Storm and Severe Weather Information
- City of Richmond Hill: Backwater Valve Subsidy Program
Contacts and program details are summarized from the official pages listed above as of October 2026. Programs and fees change, so confirm on the official page before you rely on them.