Understanding Sewer Scope Inspections for New and Old Homes: Common Issues and Repair Cost Estimates

When buying a home, whether new or old, one critical step often overlooked is a sewer scope inspection. This inspection uses a small camera to examine the condition of the sewer line running from the house to the main sewer system. It reveals hidden problems that could lead to costly repairs or health hazards. Understanding what a sewer scope inspection involves, the common issues found, and the typical repair costs can help homeowners and buyers make informed decisions.

Sewer camera inspecting underground pipe

What Is a Sewer Scope Inspection?

A sewer scope inspection involves inserting a waterproof camera into the sewer line to visually check for cracks, blockages, root intrusion, corrosion, or other damage. This process helps identify problems that are not visible during a regular home inspection. It is especially important for older homes where sewer lines may have deteriorated over time, but it is also useful for new homes to confirm the sewer system is in good condition.

The inspection typically takes 30 to 60 minutes and provides a video report showing the condition of the pipes. This allows buyers or homeowners to negotiate repairs or plan maintenance before problems worsen.

Common Issues Found in Sewer Scope Inspections

1. Tree Root Intrusion

Tree roots naturally seek water and can invade sewer pipes through small cracks or joints. Once inside, roots can grow and cause blockages or pipe damage. This is a frequent issue in older homes with clay or cast iron pipes.

2. Cracked or Collapsed Pipes

Pipes can crack or collapse due to ground movement, age, or poor installation. Cracks allow sewage to leak into the soil, causing environmental hazards and potential health risks. Collapsed pipes can cause severe blockages and backups inside the home.

3. Blockages and Clogs

Grease buildup, debris, or foreign objects can cause blockages in the sewer line. These blockages may lead to slow drains, backups, or foul odors. Identifying the exact location helps plumbers clear the obstruction efficiently.

4. Corrosion and Pipe Material Deterioration

Older pipes made of cast iron or galvanized steel can corrode over time, leading to leaks and pipe failure. Modern homes often use PVC pipes, which are more durable but still require inspection to ensure proper installation.

5. Improper Slope or Installation Issues

If the sewer line is not installed with the correct slope, wastewater may not flow properly, causing backups or standing water in pipes. This issue is more common in new construction if the installation was rushed or not inspected carefully.

Sewer pipe with cracks and root intrusion

Repair Cost Estimates for Sewer Line Issues

Repair costs vary widely depending on the type and extent of damage, pipe material, and accessibility. Here are typical cost ranges for common repairs:

• Root Removal

Using mechanical augers or chemical treatments to clear roots can cost between $150 and $500. If roots have caused pipe damage, repairs may be more expensive.

• Pipe Repair or Patch

Small cracks or holes can sometimes be repaired with epoxy lining or spot repairs, costing $300 to $1,000.

• Pipe Replacement

Replacing a section of pipe can cost $1,000 to $4,000 depending on length and pipe type. Full sewer line replacement ranges from $3,000 to $15,000 or more, especially if excavation is required.

• Hydro Jetting

High-pressure water cleaning to clear blockages costs $300 to $600. This is often used for stubborn clogs or grease buildup.

• Trenchless Sewer Repair

This method avoids digging by inserting a new pipe liner inside the old pipe. It costs $4,000 to $8,000 but reduces yard damage and recovery time.

Costs also depend on local labor rates and whether additional plumbing work is needed inside the home.

Why Sewer Scope Inspections Matter for New and Old Homes

For older homes, sewer lines may be decades old and made from materials prone to damage. A sewer scope can reveal hidden problems that might not show symptoms yet but could cause major issues soon.

For new homes, inspections confirm that the sewer system was installed correctly and is free of defects. Even new construction can have issues like improper slope or damaged pipes from construction activity.

Knowing the sewer line condition helps buyers avoid unexpected repair bills and gives sellers a chance to address problems before listing.

Plumber reviewing sewer scope video on tablet

Tips for Homeowners and Buyers

• Always request a sewer scope inspection when buying an older home or if you notice slow drains, foul odors, or frequent backups.

• Review the video report carefully and ask the inspector to explain any concerns.

• Get multiple repair quotes if issues are found to compare costs and methods.

• Consider trenchless repair options to save on landscaping and restoration costs.

• Schedule regular sewer inspections every few years to catch problems early.

  
  

Understanding sewer scope inspections and the potential issues they uncover can save thousands of dollars and prevent major headaches. Whether your home is new or old, investing in this inspection offers peace of mind and protects your property’s value.