Sewer Backup in Your Home: What to Do Right Now

By Double J Liner Repair · Troubleshooting · Published 2026-10-23

Few household problems are as stressful as sewage backing up into your home. It is unsanitary, it can damage floors and walls, and it usually happens at the worst possible time.

Here are the steps to take right away, and what to do afterward to prevent it from happening again.

Step 1: Stop using water

Every flush, shower, or load of laundry sends more water into a line that cannot drain. Stop using all fixtures immediately and let everyone in the house know.

Step 2: Keep people and pets away

Sewage contains bacteria and other contaminants. Keep children and pets out of affected areas. If water is near electrical outlets or appliances, stay out of the area and consider shutting off power to that area if you can do so safely.

Step 3: Check whether neighbors are affected

If neighbors are also experiencing backups, the problem may be in the public sewer main, and you should contact the utility right away. If only your home is affected, the problem is most likely in your private line.

Step 4: Call for help

A plumber can clear the blockage and restore flow. For cleanup of significant sewage, a professional water damage and remediation company is the safest option. Document the damage with photos for your insurance company.

Step 5: Find out why it happened

Clearing the blockage is only the first step. A camera inspection afterward shows whether roots, a crack, a collapsed section, or a belly caused the backup. If the pipe is damaged, it will likely happen again until the pipe is repaired.

Preventing the next backup

If the inspection finds structural damage, UV-cured lining can create a seamless new pipe inside the old one without digging. Call Double J Liner Repair at (210) 802-2018 for an inspection and free estimate.

Frequently Asked Questions

Should I clean up sewage myself?

Small amounts may be manageable with protective gear, but significant backups are best handled by professional remediation companies due to contamination risks.

Does insurance cover sewer backups?

It depends on your policy. Sewer backup coverage is often an optional endorsement. Check with your insurer.

How do I prevent another backup?

Find and fix the cause. A camera inspection will show whether the pipe needs repair.

Get a Free Estimate

Double J Liner Repair offers sewer camera inspections and free estimates on no-dig sewer repair in San Antonio, backed by a 10-year warranty. Learn more about sewer repair or read more sewer and pipe repair guides.

Double J Liner Repair · 1800 NE Interstate 410 Loop #216, San Antonio, TX 78217 · Phone: (210) 802-2018 · Email: Info@doublejlinerrepair.com

Hours: Monday–Friday 8:00 AM–6:00 PM, Saturday 9:00 AM–2:00 PM, Sunday closed.