What are the common causes of a sewer line backup?

Common causes of a sewer line backup include tree root intrusion, grease and wipes forming a blockage, and pipe damage or sagging that lets waste collect. Most backups begin as slow buildup in the main line and show up first at the lowest drain in the home. If several fixtures act up at once or sewage appears, treat it as urgent. We see these patterns often in homes across the Fort Wayne area. To pinpoint the problem before choosing repairs, Gibson’s offers a $95 Sewer Line Repair Diagnostic or a $149 sewer/main line camera inspection with upfront pricing.

Call a pro soon if you notice:

• Persistent sewer or musty odors indoors
• Toilets gurgling during sink or tub draining
• One lawn area growing taller/greener
• Unexplained yard puddles near the sewer route
• New wall or baseboard mold

Until inspected, avoid running water and skip chemical drain cleaners. <br/> Updated: 2026-03-14 <br/> Need help in Fort Wayne, IN? Call 833-498-7951 or book online. “I'm so happy I called them and would definitely recommend them.” — Mike W.