A sewer scope isn't part of a standard home inspection, which means most buyers don't think about it until something goes wrong. That's unfortunate, because sewer line issues are some of the most expensive surprises a homeowner can face. Here's how to know when it's worth adding one to your inspection.

What Is a Sewer Scope?

A sewer scope is a small waterproof camera fed through the home's sewer line, from the cleanout or a toilet drain, all the way out to the connection with the municipal sewer system or septic tank. It lets us see the actual condition of the pipe, not just guess based on the home's age or what's visible from the outside.

Why It's Not Part of a Standard Inspection

A standard home inspection covers what's visible and accessible. The sewer line runs underground, between the house and the street, completely out of sight. There's no way to know its condition without sending a camera down it. That's why it's offered as an add-on rather than something built into every inspection.

When You Should Strongly Consider One

The home is older. Homes built before the 1980s often have clay, cast iron, or Orangeburg (a tar-paper pipe material used mid-century) sewer lines. All three are prone to cracking, root intrusion, and collapse over time. If the home was built more than 40 years ago, a sewer scope is worth the investment.

There are mature trees on the property. Tree roots are one of the leading causes of sewer line damage. They're drawn to the moisture inside the pipe and can crack it open or grow directly into it over time. If there are large trees near the sewer line's path, particularly older trees with established root systems, this is a real risk factor.

The home has had previous plumbing issues. If the seller discloses a history of slow drains, backups, or "we had a plumber out for the sewer line a few years ago," that's a direct signal to look closer, not move on.

You're buying an investment or rental property. If you won't be living in the home and managing it closely day to day, you want fewer surprises down the road. A sewer scope removes one major unknown before you're financially committed.

The property is on a septic system. While a sewer scope for a septic system checks a different connection, the same principle applies: you want to know the condition of the line connecting the house to the tank before you own it, not after.

What It Can Catch

Good to know: Finding an issue doesn't mean the deal is dead. It means you have information. Sewer line repairs can range from a simple cleaning to a full pipe replacement, and costs vary widely depending on the issue and the length of pipe involved. Having this information before closing means you can negotiate repairs, ask for a credit, or simply go in with your eyes open about what to budget for down the road.

A sewer scope costs a small fraction of what a sewer line repair or replacement runs. For older homes, properties with mature trees, or anywhere you want one less unknown, it's one of the most worthwhile add-ons you can request. If you're not sure whether your specific property warrants one, ask us when you book. We'll give you an honest answer based on what we know about the home and the neighborhood.