This page covers what a sewer camera inspection involves, when one might be worth scheduling, and what the findings can mean for your next steps.
What Is a Sewer Camera Inspection?
A sewer camera inspection is a diagnostic process that uses a specialized waterproof camera, attached to a flexible cable, to examine the interior of a sewer line. The camera is fed through an access point and guided through the pipe, sending a live video feed back to the technician performing the inspection.
This gives a direct, visual look at conditions inside the line that would otherwise be impossible to see without digging. Instead of relying only on how a drain is behaving above ground, a camera inspection shows the actual condition of the pipe itself, including blockages, buildup, and physical damage.
When Do You Need a Sewer Camera Inspection?
A sewer camera inspection is typically worth considering any time there's uncertainty about the condition of a sewer line or the cause of a drainage issue. Common situations include:
Recurring or slow drains. If multiple drains in your home are slow, or a single drain keeps clogging after repeated attempts to clear it, there may be an issue further down the line that a plunger or basic snake can't resolve.
Sewage backups. A backup in a tub, shower, or floor drain, especially one that happens repeatedly, often points to a blockage or obstruction somewhere in the main sewer line rather than an isolated fixture problem.
Unusual odors or sounds. Persistent sewer odors or gurgling sounds coming from drains can indicate a venting or blockage issue worth investigating further.
Aging sewer lines. Older pipes, particularly those made from materials prone to cracking or root intrusion, can benefit from periodic inspection even without an active problem.
Before buying a home. Homebuyers sometimes request a sewer camera inspection as part of their due diligence process to get a better understanding of the condition of an accessible sewer line before closing.
It's worth noting that these symptoms can have more than one possible cause, and a camera inspection helps narrow down what's actually happening rather than confirming a single diagnosis in advance.
What Can a Sewer Camera Inspection Detect?
A sewer camera inspection can help identify a range of conditions inside a sewer line, including:
- Blockages caused by grease, debris, or foreign objects
- Buildup that has narrowed the interior of the pipe over time
- Tree root intrusion, which can enter through small cracks or joints
- Cracks, fractures, or breaks in the pipe wall
- Pipe separation at joints or connections
- Corrosion or deterioration in older pipe materials
- Collapsed or partially collapsed sections
- Bellies or sagging areas where the pipe has shifted
The exact findings of any inspection depend on the condition and accessibility of the line, as well as the capabilities of the equipment being used. A camera inspection provides valuable visual information, but it isn't guaranteed to identify every possible plumbing issue, particularly problems located outside the sewer line itself.