Most homebuyers focus on the visible parts of a house—roof, HVAC, interior condition—but one of the most expensive systems is hidden underground: the main sewer line. A sewer scope inspection is the only way to identify blockages, cracks, root intrusions, or collapsed pipes before you close on a property.
This inspection is affordable, fast, and can save thousands in unexpected repair costs.
What Is a Sewer Scope Inspection?
A sewer scope inspection uses a waterproof camera attached to a long cable that is inserted into the home’s sewer line. The inspector visually documents the condition of the pipe from the house to the city connection.
Common Issues Found During Sewer Scope Inspections
1. Tree Root Intrusion
Roots naturally grow toward moisture and often break into sewer lines.
Why it matters: Blockages lead to backups and may require excavation.
2. Pipe Corrosion or Deterioration
Older homes may have cast iron or clay pipes prone to deterioration.
Why it matters: Damaged pipes can collapse, causing major repair bills.
3. Blockages & Build-Up
Grease, debris, and foreign objects can clog the line.
Why it matters: Blockages cause sewage backups into the home.
4. Offset or Broken Joints
Shifting soil or improper installation can misalign pipe joints.
Why it matters: Misaligned pipes allow leaks, erosion, and root intrusion.
5. Bellied or Sunken Sections
A section of the pipe may sink, causing water and waste to collect.
Why it matters: Standing wastewater accelerates pipe failure.
Why a Sewer Scope Matters for Homebuyers
1. Hidden Damage = Expensive Repairs
Replacing a sewer line can cost between $4,000 and $15,000 or more.
2. Faster, More Confident Negotiations
Buyers can request repairs, credits, or price adjustments based on findings.
3. Older Homes Are High-Risk
Homes built before 1980 often have outdated materials prone to failure.
4. Peace of Mind Before Closing
You know exactly what’s underground before making a major investment.
Conclusion
A sewer scope inspection is a small expense compared to the massive cost of sewer line failure. For any homebuyer—especially those purchasing older homes—it is one of the most valuable inspections you can schedule.
