What To Do If You Have a Sewer Backup
Who to Contact in Case of a Sewer Backup
If you experience sanitary sewer backup issues and suspect the cause is not the result of a blockage or defect with your private sanitary sewer lateral, please contact our Department of Public Works at 414-302-8800 (7 a.m. to 3 p.m. Weekdays). If your issue happens outside of these hours, you can contact the Non-Emergency Police Department number at 414-302-8000 and they will dispatch a City of West Allis Sewer Crew to verify the City’s Sewer Main is flowing. By calling us first, you may save yourself a plumbing bill.
If you experience a sanitary sewer issue during dry weather, it is highly likely that it's the result of a blockage or defect with your private sanitary sewer system. In these cases, we recommend you contact a licensed plumber to help you identify and remediate the issue.
This chart shows what to do in the event of a sanitary sewer backup.
Your lateral may be eligible for a lateral rehab reimbursement program. Please contact the Engineering Department for more information.
If you have a sanitary sewer backup, please also go to the MMSD sewer backup site to report this issue.
A reminder from our Engineering staff: just because something can be flushed, doesn't mean it should be. Paper towels, napkins, etc. do not disintegrate. You may be creating costly clogs in your pipes & our community sewer pipes. Learn what NOT to flush.