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Sewer testing for your home

  • Writer: The Reddingtons
    The Reddingtons
  • Dec 19, 2025
  • 2 min read
Sewer testing for your home

Sewer Line Inspections: A Small Cost That Can Prevent a Big Mess

When buying a home, most buyers choose to include a sewer line inspection as part of their general inspection process—and it’s one we strongly recommend. While it’s often overlooked, this inspection can save you from one of the messiest and most expensive surprises a homeowner can face.


What Is a Sewer Line Inspection?

A sewer line inspection (often called a sewer scope) involves a specialist running a camera through the home’s sewer line. This is typically done through a drain cleanout, or occasionally through a toilet if a cleanout can’t be located.

The goal is simple:

  • To confirm the sewer pipe is clear

  • To check for cracks, breaks, bellies, root intrusion, or blockages

  • To make sure the sewer line is in good working order


Why This Inspection Matters

What we absolutely want to avoid is a blocked or damaged sewer line. If a sewer pipe becomes blocked, wastewater has nowhere to go—and it can back up directly into the home.

And yes… sewage backing up onto floors, into basements, or through drains does happen. It’s unpleasant, costly, and often unexpected.


Cost of Inspection vs. Cost of Repair

This is where the numbers really matter:

  • Sewer line inspection: typically $150–$250

  • Sewer line repairs or replacement: can run into the thousands—or even tens of thousands—of dollars

Spending a small amount upfront can uncover issues early, allowing buyers to negotiate repairs, credits, or further evaluations during the inspection resolution process.


Don’t Forget Insurance Coverage

Another important step we always encourage is checking your homeowner’s insurance policy. Not all policies automatically cover sewer line backups or failures.

It’s worth confirming:

  • Whether sewer backups are covered

  • If a rider or endorsement is needed

  • What the coverage limits are

Because if the inevitable happens, you’ll want to know you’re protected.


Final Thoughts

A sewer line inspection isn’t glamorous—but it’s smart. When we guide buyers through inspections, our goal is always the same: reduce risk, uncover hidden issues, and help our clients make informed decisions.


For a relatively small investment, a sewer scope can provide peace of mind—and help you avoid a very unpleasant surprise after closing.


 
 
 

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The Reddingtons are a team of real estate agents affiliated with Compass. Compass is a licensed real estate broker and abides by equal housing opportunity laws.  Compass ranked #1 brokerage in the United States in sales volume (Real Trends 2024). #1 Brokerage in Denver Metro based on closed volume data from REColorado, 1/1/20-12/31/24. All material presented herein is intended for informational purposes only. Information is compiled from sources deemed reliable but is subject to errors, omissions, changes in price, condition, sale, or withdrawal without notice. No statement is made as to accuracy of any description. All measurements and square footages are approximate. This is not intended to solicit property already listed. Nothing herein shall be construed as legal, accounting or other professional advice outside the realm of real estate brokerage.
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