A sewer camera inspection is the most important diagnostic tool in residential plumbing. It replaces guesswork with visual evidence, showing you exactly what is happening inside your pipe—and more importantly, what is likely to happen next if you do not address what the camera finds. Whether you are buying a home, troubleshooting a recurring clog, or scheduling preventative maintenance, understanding the inspection process and how to read the resulting report puts you in control.
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The inspection begins at your sewer cleanout, which is typically a 4-inch PVC or cast iron pipe with a removable cap located near your foundation or in the yard. The technician inserts a flexible cable with a high-resolution camera head into the cleanout and feeds it downstream toward the city main. The camera transmits live video to a monitor, and the technician records the footage as the camera travels the full length of the lateral.
As the camera moves through the pipe, the technician notes the distance from the cleanout (measured by a counter on the cable), the condition of each section, any defects observed, and the location of joints, connections, and transitions between pipe materials. The inspection typically takes 20 to 45 minutes depending on the length and accessibility of the line. At the end, you receive a video file and a written report summarizing the findings.
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Sewer inspection reports use industry terminology that can be confusing if you have never seen one before. Offset means two pipe sections are misaligned at a joint, creating a lip where debris catches and roots can enter. Scale refers to mineral buildup on the pipe's interior walls, which narrows the effective diameter and can indicate chronic hard water exposure or early-stage corrosion. Belly means a section of pipe has sagged below grade, creating a low point where water and waste pool. Infiltration means groundwater is entering the pipe through cracks or joints, which indicates structural compromise and can overload the system during wet weather.
Other common terms include fracture (a visible crack in the pipe wall), deformation (the pipe has lost its round shape, common with Orangeburg), root intrusion (roots visible inside the pipe through joints or cracks), and grease buildup (a visible accumulation of hardened fats on the pipe walls).
When reviewing your camera inspection video, the most concerning findings are: active root intrusion at multiple joints (indicating widespread vulnerability), severe bellying with standing water visible even when no fixtures are draining, pipe collapse or deformation where the pipe has lost structural integrity, and heavy scale or corrosion that has reduced the pipe diameter by 30 percent or more. Any of these findings should prompt a conversation with your plumber about repair or replacement options.
Less concerning but worth monitoring: minor offsets at a few joints (common in older pipes and may not worsen), light grease buildup (addressable with hydro-jetting), and small amounts of infiltration at joints (not unusual in older clay pipes during wet weather).
Before your sewer camera inspection begins, ask these five questions: First, what camera resolution do you use? HD cameras provide dramatically better detail than older SD equipment. Second, will I receive the complete video file or just a summary report? You want the full footage for your records and for negotiation purposes if buying a home. Third, do you locate and mark problem areas above ground? Some inspectors use a locator transmitter in the camera head to mark the position of defects at the surface, which is invaluable if repairs are needed. Fourth, how experienced are you with the pipe types common in my neighborhood? Interpreting camera footage requires experience with the specific materials and failure modes present. Fifth, what happens if you find a problem—do you provide repair recommendations and estimates, or just the diagnostic?
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Get the Free Checklist →Most sewer camera inspections in Boise cost $150 to $300 depending on the length of the lateral and the company performing the work.
For older homes with clay or cast iron pipes, every 1 to 2 years. For newer homes with PVC, every 3 to 5 years. More frequently if you have large trees near the line or a history of problems.
No. The camera cable is flexible and the camera head is smooth. It is a purely diagnostic, non-destructive process. However, if the pipe is severely collapsed, the camera may not be able to pass through the affected section.
Root intrusion at pipe joints is the most frequently identified issue, particularly in older neighborhoods with clay pipes and mature trees.
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