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Why New Homes in Shepherd Need a Sewer Scope Inspection

By Levi Vandersloot · August 11, 2026 · 3 min read

Why New Homes in Shepherd Need a Sewer Scope Inspection

There is a specific kind of excitement that comes with buying a brand new home in Billings MT or the surrounding Yellowstone County area. You expect fresh paint, modern appliances, and systems that are in perfect working order. It seems logical to assume that the sewer and drainage lines, having just been laid in the ground, would be the last thing you need to worry about.

However, at Yellowstone Home Inspections, I often advise my clients to think differently. While the foundation might be cured and the roof tight, the underground infrastructure can tell a very different story. "New" does not always mean "flawless," and assuming a sewer line is defect-free just because the home has never been lived in is a gamble that can lead to expensive headaches down the road.

The Construction Site Reality

It helps to understand what happens on a typical construction site. In cities like Billings, Laurel, and Huntley, new builds are often on tight schedules. Multiple subcontractors are moving through the property at once—framing crews, electricians, HVAC installers, and concrete finishers. The plumber installs the sewer lines, but they don't always control what happens to those pipes after they walk away.

I have seen instances where heavy machinery used for grading or backfilling accidentally crushes a PVC pipe. Sometimes, sections of pipe aren't glued together correctly by a rushed apprentice. In other cases, the pipe is simply not bedded in the gravel properly, causing it to sag or settle under the weight of the soil. Once that dirt is backfilled and the concrete slab is poured, that defect is buried deep underground where no one can see it—until you flush the toilet for the first time.

A close-up view of orange PVC sewer pipes laid in a gravel trench at a construction site, with a worker's boot stepping on the pipe and a backhoe visible in the

Hidden Debris and Obstructions

Another common issue we find during a Sewer Scope Inspection on new construction is debris left inside the lines. On a busy job site, it’s not uncommon for scraps of drywall, shavings from PVC cuts, or even lunch wrappers to find their way into an open pipe. If a cap isn't placed on the cleanout immediately, a significant amount of soil can wash in during a rainstorm.

When the system is turned on, water flows, but solid waste gets caught on these obstructions. Over time, this creates a stubborn blockage that standard snaking might not fix if the pipe is also damaged. Identifying this before closing allows the builder to flush the line or make the necessary repairs while they are still responsible for the work.

Ground Movement and Montana Winters

Our local climate in Montana adds another layer of complexity. The freeze-thaw cycles we experience in places like Worden, Ballantine, and Roundup can be brutal on buried utilities. If a sewer line was installed with a slight belly or low spot (where water sits instead of flowing), it is prone to freezing in the winter.

Furthermore, as the ground settles over the first few years, a pipe that was barely acceptable during installation can shift, leading to separation at the joints. A sewer scope camera allows us to see the grading of the pipe. We want to ensure that water is flowing efficiently toward the main city sewer or septic tank. If the slope is off, you risk backups and structural damage to your brand-new foundation.

The Cost of Verification

A sewer scope is a relatively small investment compared to the cost of excavating a brand-new yard. If a problem is discovered after you move in, you could be looking at thousands of dollars in landscaping repairs, concrete cutting, and plumbing fixes—not to mention the inconvenience of being without a working bathroom.

At Yellowstone Home Inspections, I offer the Sewer Scope Inspection as a standalone service or as part of a comprehensive package. For new construction, it acts as a final quality control check. It gives you the documentation to go back to the builder and demand repairs before the closing date, ensuring your home is truly move-in ready.

If you are under contract for a new build in Shepherd, Billings, or anywhere in the surrounding area, don't skip the inspection just because the home is new. A visual inspection of the sewer line can save you significant time and money.

To schedule a Sewer Scope Inspection or to learn more about our Healthy Home Inspection Package, reach out to Yellowstone Home Inspections today. I’m here to help you understand the condition of your new home, so you can enjoy it with total peace of mind.

sewer scopenew constructionshepherd mthome inspectionbillings mtplumbinghome maintenance