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Sewer gas and odor inspection in Sterling Heights, MI
A sewer smell inspection in Sterling Heights homes is how we find out why gas that's supposed to stay sealed inside the drain and vent system is getting into your living space. Traps hold a water seal, vents carry gas up through the roof, and the sewer line is supposed to be airtight from the house to the street. When any part of that fails, the rotten-egg smell is the symptom, not the problem.
- Recorded HD video
- Same-day report
- Licensed & insured
Some causes are simple and non-structural — a dry P-trap under a rarely used floor drain, a failed wax ring under a toilet, or a venting issue pulling gas back into the house. Others are structural, inside the pipe itself: a cracked sewer line, an open or separated joint, or a partial break letting gas seep out and back up through a foundation crack or floor drain. Only a camera confirms which one you're dealing with.
That distinction matters because the fix is completely different. A dry trap or bad wax ring is a same-day plumbing repair. A crack or open joint in the lateral needs to be located and addressed before it gets worse. We run the camera, document exactly what we find, and tell you honestly which side of that line your problem falls on — footage in hand, not a guess.
Signs the odor is coming from the line
Sewer gas doesn't always announce itself the same way in every house. These are the patterns worth booking a camera inspection over:
- A persistent rotten-egg or sewage smell indoors that isn't tied to an obvious event
- Odor that's stronger near a specific drain, bathroom, floor drain, or the basement
- Smell that returns even after cleaning drains and running water through every trap in the house
- A musty or sulfur-like odor concentrated in a basement or crawlspace
- Odor accompanied by slow drains, gurgling toilets, or bubbling in a floor drain
- A smell that got noticeably worse after a renovation, a fixture removal, or a long vacancy
- Odor near an exterior cleanout or along the suspected path of the sewer lateral in the yard
- A smell that ventilating the room or running the exhaust fan doesn't resolve for long
How we trace a sewer odor
Finding a smell's source is a process of elimination — we work from the symptom pattern down to camera-confirmed evidence.
- 1
Walk the house and narrow the area
We ask when the smell started, where it's strongest, and which fixtures or drains are nearby, then identify which line or trap most likely serves that area.
- 2
Rule out the easy, non-structural causes
We check for a dry trap, a failed toilet seal, or an obviously disconnected vent before assuming the line itself is at fault.
- 3
Camera the suspect line
If the easy causes don't explain it, the camera goes into the drain or sewer line and records the full run, looking for cracks, open joints, and breaks.
- 4
Identify and document the source
We record any structural defect letting gas escape, note its approximate location, and capture stills and video you keep.
- 5
Explain what we did and didn't find
A clean line points you back toward a trap, seal, or venting issue instead of a costly structural one.
- 6
Recommend next steps
You get the footage and a written summary — a repair recommendation, or a referral toward the right fix if the cause is venting or a fixture seal.

Odor inspection pricing factors
A sewer smell inspection is priced like a targeted camera inspection — a straightforward local scope commonly runs about $200–$500:
- How many lines or fixtures need checking to isolate the source (one suspect drain vs. a full-house sweep)
- Access to the suspect drain or sewer line — a buried or missing cleanout adds time
- Line length if the full lateral needs scoping — $225–$500 under 50 ft, $500–$975 for 50–100 ft, $975–$1,900 beyond that
- Whether locating and depth are needed once a structural source is found
- Whether a full line scope gets added while we're already on site
- Urgency — same-day for a worsening odor vs. a routine appointment
What's included in a sewer gas & odor inspection
Every odor inspection ends with a documented answer, not a guess you have to trust. You get:
What you get
- Recorded HD video of the suspect drain or sewer line
- Still images of any crack, open joint, or break we find
- Approximate inspected distance and camera endpoint
- Notes on pipe material and condition along the run
- Approximate defect location when conditions allow, for repair planning
- A plain-English written summary stating whether the cause is structural or points elsewhere (trap, seal, venting)
What the camera can — and can't — prove
A camera is a structural tool: it's built to travel through pipe and show you what's wrong with the pipe. That makes it excellent for confirming cracks, open or separated joints, and breaks in a drain or sewer line — the defects that let sewer gas escape into a basement or crawlspace along the pipe's path.
What it can't do is diagnose a dry trap, a failed wax ring, or a disconnected vent — those are fixture and venting issues, not pipe-wall issues, and they don't show up on interior video. So we narrow the symptom pattern first: where the smell is strongest, how long it's lasted, and whether it followed a renovation. If those clues point at the line itself, a drain camera inspection confirms or rules out a structural cause. Our guide on finding the source of a sewage smell in the house walks through that same room-by-room logic.
Smell won't go away?
If the odor is strong, sudden, or paired with slow drains and gurgling, don't wait it out. Ventilate the space and call (614) 830-0578 — we offer 24/7 emergency response and can often get a camera in the line same-day or next-day to pinpoint the source.
Pipe materials behind Sterling Heights odor complaints
Older homes across Sterling Heights and Macomb County run on a mix of sewer materials, and each fails in a way that can let gas escape: clay joints separate as roots wedge them open, cast iron corrodes and eventually perforates, and aging Orangeburg flattens and cracks well before it fully collapses. Material alone never tells us whether a home has a problem — recorded condition does. If the line's never been scoped, a sewer camera inspection alongside the odor trace can document overall condition and rule out a developing collapsed or broken pipe while we're already in the line.
Is sewer gas actually dangerous?
Sewer gas is a mix of gases including hydrogen sulfide (the rotten-egg smell), methane, and ammonia. At low concentrations it's mainly an unpleasant early warning sign; at higher concentrations in an enclosed, poorly ventilated space it can cause headaches, nausea, and irritation. Don't treat a persistent smell as something to live with — ventilate the area and get the source identified. Whether the answer is a dry trap or a cracked lateral, you want to know rather than guess.
DIY trap check first, or book a camera? A quick decision guide
Not every sewer smell needs a truck in the driveway. A handful of checks take five minutes and either solve the problem outright or tell you it's time to stop guessing and get a camera on the line.
Try this before you call
- Run water in every rarely used floor drain, basement sink, and laundry tub — refilling a dry trap resolves a surprising share of intermittent odor calls on its own
- Confirm toilets are seated properly and haven't been reset recently without a new wax ring
- Note whether the smell is constant or comes and goes with weather, water usage, or time of day
- Note whether it's tied to one fixture or room, or seems to follow you through the house
- If it persists after trap and seal checks, or comes with slow drains or gurgling, that pattern points to a structural cause worth confirming with a sewer scope inspection rather than another round of guessing
A Sterling Heights case: chasing a smell that wasn't the floor drain
A homeowner near Dodge Park Road called after weeks of an on-and-off sewage smell in the basement laundry area. He'd already refilled the floor drain trap twice and re-caulked around it, but the odor kept returning every few days, always strongest in the evening. We walked the basement first, then ran the camera through the nearest cleanout rather than starting at the floor drain itself, since an intermittent smell that survives a trap refill usually isn't a trap problem at all.
About 30 feet out, the camera found a hairline crack at a clay joint near the foundation wall — small enough that it wasn't causing a backup, but large enough to vent gas into the surrounding soil and back up through a foundation seam whenever pressure in the line changed with evening water use. He had video of the exact joint, a written summary distinguishing it from the venting issue he'd been chasing, and enough information to get one accurate repair quote instead of replacing fixtures that were never the problem.
Common mistakes people make chasing a sewer smell
- Masking the odor with chemical drain treatments or scented plug-ins before an inspection — this can also change conditions in the pipe and make a real defect harder to see on camera
- Assuming the nearest drain is the source just because the smell is strongest there — gas travels through the vent stack and can surface well away from the actual defect
- Replacing a wax ring or re-sealing a trap without confirming it actually fixed the smell, then living with a returning odor for months before calling anyone
- Paying for a full repair quote before any camera has confirmed there's a structural cause to repair in the first place
- Waiting out an intermittent smell for an entire season on the assumption it will resolve on its own, when a short camera check could settle the question in an afternoon
Storms, high water tables, and why odor complaints spike across Macomb County
We field more sewer odor calls in the days after a heavy rain, and it's not a coincidence. Communities near the Clinton River and Lake St. Clair sit on a naturally high water table, and saturated clay soil around an aging lateral pushes groundwater against every joint and hairline crack in the pipe. That added pressure can force gas up through a foundation seam or floor drain that stayed quiet in dry weather — the defect was already there, the storm just made it noticeable. Our Lake St. Clair high water table backup risk guide covers the same mechanism as it applies to backups, and it's worth reading if odor complaints at your Clinton Township home track the weather.
Freeze-thaw cycles do a slower version of the same thing over a whole winter: clay soil expands and contracts around the pipe, working a marginal joint looser year over year until a smell that used to show up only after a big storm starts showing up after an ordinary rain.
Why Sewer Inspects
Why choose us for sewer gas & odor inspection
12+ years reading Metro Detroit sewer lines
We've spent over a decade running cameras through the same clay, cast-iron, and Orangeburg laterals common across Sterling Heights and Macomb County, so we know what a genuine structural gas leak looks like on video versus a red herring.
Licensed, insured, and independent
We're licensed and insured, and we don't sell excavation or repair work. That means our read on whether your odor is structural or not isn't colored by an incentive to find (or invent) a big-ticket repair.
Recorded footage, stills, and a written report you keep
Every odor trace ends with HD video, still images of any defect, and a plain-English written summary — documentation you can hand to a plumber, a repair contractor, or an insurer if it comes to that.
24/7 emergency response, same-day or next-day
A sewer smell that won't quit doesn't wait for business hours. We offer 24/7 emergency response and can typically get a camera on-site same-day or next-day to stop the guessing.
Answers
Sewer Gas & Odor Inspection — FAQs
Where we offer sewer gas & odor inspection
We run sewer smell and odor inspections across Sterling Heights and throughout Macomb County, including Utica, Shelby Township, Clinton Township, Warren, and Troy. From our Sterling Heights base we can typically reach most of these areas same-day or next-day for a persistent or worsening odor complaint.
We also cover odor calls in Madison Heights, Roseville, Eastpointe, and Center Line, along with the rest of our Metro Detroit service area. If your city isn't listed here, call (614) 830-0578 and ask — there's a good chance we already cover it.
A few of the communities we serve — see all on our service areas page.
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Backing up right now? Call us 24/7.
Same-day sewer camera inspection across Sterling Heights, Macomb County & Metro Detroit. Free quote — call (614) 830-0578 or request a callback.
13+ years experience • Licensed & insured • 24/7 emergency response