Why Does My House Smell Like Sewer?
A sewer smell in the house is one of the most common warning signs homeowners Google before they realize the issue may be bigger than a single drain.

Common causes we see
- Dry or underused traps at a floor drain or utility sink
- Localized drain issue at one fixture
- Main sewer line restriction or standing water in the line
- Roots, offsets, or damaged pipe sections allowing ongoing odor issues
These are exactly the kinds of issues a sewer camera inspection is designed to document before you pay for major work.

Why you should not ignore it
- Persistent odor can indicate a problem developing out of sight
- If smell is paired with gurgling, slow drains, or floor-drain water, the concern is more urgent
- The sooner you document the cause, the less likely you are to pay for unnecessary guesswork
How GroundTruth helps
GroundTruth can inspect the line and document what is actually happening. Inspection-only service means you get unbiased findings without repair sales pressure attached to the diagnosis.
We are inspection-only. That means no repair sales pressure tied to the diagnosis. You get video + written documentation and can use the findings with the contractor of your choice.
Best next step
If this sounds like what you are seeing at your property, the smartest move is to document the line before the next rain event, laundry day, or backup makes the decision for you.
Frequently asked questions
What usually causes why does my house smell like sewer??
Common causes include buildup, roots, a sewer belly, or another restriction farther down the main line.
Can a sewer camera inspection help with why does my house smell like sewer??
Yes. A sewer camera inspection helps document the true cause so you can make a better decision about cleaning, monitoring, or repair.
Can hydro jetting help with why does my house smell like sewer??
Sometimes. Hydro jetting can help when the line is structurally sound and the main issue is heavy buildup rather than broken pipe.