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Inspect regularly for clogs, clean drain lines, and ensure grading directs water away from the foundation.

The cost to unclog a sewer line is between $200 and $600, with the average homeowner spending around $380, depending on the severity of the clog. It can cost as little as $100 to snake a small clog, but you could spend up to $1,600 if you need to video inspect the line and hydrojet a large clog.

Outdoor plumbing issues are no less serious or urgent to fix than interior plumbing problems. These problems may require excavation and lawn repair due to the plumbing often being buried underground. The most common outside plumbing problems include:

• Clogged landscape drainage: $200–$1,000

• Clogged sewer lines: $60–$250 per linear foot

• Corroded or rusted pipes: $1,500–$15,000+

• Leaking drain lines: $200–$1,000

• Leaking water mains: $300–$4,000+

• Septic system failure: $600–$3,000+

• Tree roots in pipes: $200–$1,000

• Well pump failure: $350–$1,500

Homeowners insurance usually doesn’t cover sewer backups because it’s typically an avoidable problem with proper maintenance. The only exception would be if the backup is occurring because of local flooding and only if your city uses a combined drainage system for stormwater and sewage. If that’s the case, your policy should cover any resulting damage.