How to Prevent Sewer Backups

A sewer backup is one of the worst things that can happen in a home — and the good news is that most are preventable with a few habits and a little foresight.

Everyday Habits

• Only flush pee, poop, and toilet paper
• Keep grease, fats, and oils out of every drain
• Use sink and shower strainers to catch debris
• Don't rely on chemical drain cleaners

Periodic Protection

• Clean the main line every 18–24 months
• Scope older lines to catch defects early
• Address root intrusion before it rebuilds
• Install a backwater valve if you're at risk of storm backups

The Bottom Line

A modest amount of maintenance costs far less than one backup cleanup — and spares you the mess, the stress, and the health hazard entirely.