What to Know About Sewer Inspections Before Buying a Home in Wisconsin

You’ve finally found the perfect home in Wisconsin. It’s located in a great neighborhood, has the backyard you’ve always dreamed of, and the picture perfect spot for relaxing summer barbeques. Before closing, you want to make sure the property is as great as it seems with a thorough home inspection. 

During the home inspection, however, you notice there’s one area the inspector seems to skip over: the sewer line. Why? It’s buried, out of sight, and rarely included in standard inspections. Yet if something’s wrong down there, it could cost you thousands in repairs after closing.

Explore some of the top questions and benefits of getting a sewer inspection before buying a home in Wisconsin.

Is a Sewer Inspection Required When Buying a Home in Wisconsin?

No, a sewer inspection is not legally required when buying a home in the state of Wisconsin. With that being said, a Wisconsin home inspection also isn’t legally required, but few individuals would ever dream of skipping this critical step. Just as it is essential to inspect the foundation, roof, plumbing, and other core elements of a home, it is strongly recommended that you schedule a sewer line check before closing. This quick and inexpensive step can save you headaches and thousands of dollars down the road.

What Happens If You Don’t Inspect Your Sewer Line?

Most buyers assume a regular home inspection covers everything. But in many cases, inspectors don’t run a sewer scope. That means a cracked pipe, tree root blockage, or collapsed line can go unnoticed until sewage backs up into your basement.

And here’s the kicker: your homeowner’s insurance probably won’t cover pre-existing sewer problems.

That $400,000 dream home could come with a $15,000 repair bill just months later. And by then? It’s entirely your responsibility.

Should I Get a Sewer Inspection if the House is Newer?

Even if the house is newly built, it’s still wise to consider a video sewer inspection before closing. New construction doesn’t always guarantee problem-free plumbing. Construction debris, poor installation, or soil settlement can cause issues in the sewer line. In some cases, heavy machinery used during construction can crack or misalign pipes. Additionally, if the home was built in an area with dense tree coverage, root intrusion can still be a concern over time. 

Including a sewer line check before closing in your Wisconsin home inspection process ensures the sewer system was properly installed and functioning as intended, helping you avoid future issues and unexpected repair costs.

When Should I Schedule a Sewer Inspection in the Buying Process?

The best time to schedule a sewer inspection is during the contingency period. This timing allows you to uncover any sewer line issues early, giving you room to negotiate repairs or credits with the seller before closing. 

Real Example: How One Inspection Saved Over $6,000

We recently worked with a couple buying their dream home in Hartland. Everything looked great on paper. Their general inspection passed without major issues. But before they made an offer, their agent recommended a video sewer inspection. Our team scoped the line — and found a total pipe collapse in the yard. Exterior excavation and exterior sewer lateral repair costs exceeded $6,000. 

Thankfully, because they discovered this before closing, the buyer was able to negotiate a repair credit with the seller.

Without that inspection, the total repair cost would’ve come out of their pocket a few months later when their drains started backing up.

What Does a Video Sewer Inspection Include?

At Sewer Ninjas, a sewer inspection before buying a home typically includes:

• A full camera inspection of the home’s main sewer line
• Digital video footage with timestamps and commentary
• A written summary of findings
• Recommendations for repairs (if needed)
• Guidance on how to present findings during negotiations
• Same-day delivery in most cases
• No digging necessary!

Who Should Get a Sewer Inspection?

A sewer inspection is strongly recommended if:

• The home was built before 1980
• You’re buying during winter or spring thaw
• There are mature trees near the sewer line
• The property has slow drains or a history of plumbing issues
• The seller hasn’t had a recent sewer line check

Protect Yourself Before You Close

A simple, low-cost video sewer inspection can protect you from serious post-closing surprises. For around the same price as a home appraisal, you gain peace of mind and negotiating power. Instead of discovering a costly repair after you move in, you’ll have clear documentation to request a seller credit, repair, or price adjustment — before signing.

Get a Same-Day Sewer Inspection Before You Make an Offer

Sewer Ninjas offers fast, professional video sewer inspections specifically for homebuyers in Wisconsin. We know what to look for in older properties, how to document it, and how to deliver clear footage and reports you can use during negotiations.

• Quick scheduling 
• Digital video reports
• Local expertise on Wisconsin pipe conditions

Learn more here: Video Sewer Inspection Service

Don’t Let a Buried Problem Become Your Burden

If you’re serious about making a smart offer, don’t skip the sewer check. Contact us today at (414) 250-8605 or fill out our online form to schedule your video inspection.  A 45-minute inspection now could save you thousands — and a major headache — later.