Why Buyers Should Request a Sewer Line Video Inspection

A standard home inspection does not include a video inspection of the main sewer line. Yet, the sewer line is one of the most expensive parts of a home’s plumbing system to repair or replace—and hidden issues are common, especially in older homes.

What Is a Sewer Line Video Inspection?

A sewer line video inspection uses a specialized waterproof camera attached to a flexible cable. The plumber feeds this camera through the home’s main sewer line (usually accessed from a cleanout or the main stack) and records a real-time video of the pipe’s interior. This process helps identify blockages, breaks, and other problems that aren’t visible from inside the home.

Why Is This Inspection Important?

1. Hidden Problems Aren’t Covered in Standard Inspections
Most home inspectors only check visible plumbing inside the house. The underground sewer line, which carries waste to the city sewer or septic tank, is not inspected unless a separate video inspection is requested.

2. Common Issues Found

Tree Root Intrusion: Roots from nearby trees can break into the line, causing blockages or slow drains.
Pipe Collapse or Breaks: Older pipes (especially clay, cast iron, or Orangeburg) can crack, collapse, or disintegrate over time.
Bellies or Low Spots: Sections of pipe that have sunk can collect waste and water, leading to clogs and backups.
Grease, Scale, or Debris Buildup: Years of use can cause buildup that narrows the pipe and causes recurring blockages.
Improper Repairs or Materials: DIY fixes or outdated materials can create weak points or code violations.

3. Repairs Are Expensive and Disruptive
Sewer line repairs often require digging up yards, driveways, or landscaping. Replacement can run from several thousand dollars up to $15,000 or more, depending on the problem and location.

4. Negotiation Power
If issues are found before closing, buyers can negotiate for repairs or a price reduction. If you skip this step, you may inherit a costly problem after moving in.

5. Peace of Mind
Knowing the true condition of the sewer line helps buyers avoid unpleasant surprises—like sewage backups or emergency repairs—after they move in.

When Is a Sewer Line Video Inspection Most Important?

Homes built before the 1980s (older materials are more likely to fail)
Properties with large trees near the sewer line
Homes with a history of slow drains, backups, or frequent plumbing calls
Any property where the sewer line’s material or age is unknown

What’s Involved?

A professional plumber will:

Locate the main cleanout access
Run a high-resolution camera through the sewer line
Record the inspection and provide a video or written report
Point out any areas of concern and recommend solutions

Bottom Line

A sewer line video inspection is a small investment that can save buyers thousands—and a lot of hassle. Real estate agents should encourage clients to request this service, especially for older homes or properties with risk factors.