A sewer scope report is a short document written by someone who runs a camera for a living, and it reads like it. You get a few sentences, some footage markers, maybe screenshots, and a recommendation that ranges from “monitor” to “replace.” Here is how to translate it.
The terms you’ll see
Offset joint. Two sections of pipe no longer line up. Common in clay and concrete lines where the ground has moved. A small offset lets roots in; a large one catches paper and causes backups. Minor offsets are often left alone or lined. Major offsets get a spot repair.
Root intrusion. Roots found the joint or crack and grew into the line. The report usually says light, moderate, or heavy. Light roots can be cut and the line lined. Heavy roots that fill the pipe usually mean the pipe is cracked open, and cutting them buys you a year, not a fix.
Belly, sag, or low spot. A section of pipe dropped below the rest, so water and solids sit there instead of flowing. You can see it on camera as standing water. Bellies cannot be lined away, because the liner follows the shape of the pipe. Most bellies need that section dug and re-laid at the right slope.
Crack, fracture, or break. A crack is a line in the pipe wall. A break is a hole or a missing piece. Cracks in a line that still holds its shape are the ideal lining candidate. Breaks with missing wall may still be lined if the liner can bridge the gap; large breaks get a spot repair or replacement.
Scale or tuberculation. Rust buildup on the inside of cast iron. It narrows the pipe and snags debris. Descaling followed by lining is the usual answer if the wall is still thick enough.
Channeling. The bottom of a cast iron pipe has rusted away, leaving a half-pipe. Water still flows on the soil below, which is why nobody noticed. Channeling means the pipe is failing along its length, not at one point, and is the finding most likely to turn into a full replacement.
Collapse or blockage, camera could not pass. The inspector could not get past a point. Everything downstream is unknown. Expect a quote that includes clearing the line and re-scoping, and prepare for the finding to be worse.
Which findings are urgent
Backups, collapses, and channeling are urgent. They get worse, and a full backup into the house is an insurance claim, a cleanup, and a replacement all at once.
Bellies, moderate roots, and offsets are “fix this year” findings. They rarely fail overnight, but they do not improve.
Light roots, minor scale, and hairline cracks are “monitor and budget” findings. Many homeowners live with these for years with an annual cleaning. If you are buying the house, they are still worth a credit, because you will pay for the cleaning.
What each finding usually costs
Spot repairs for a single offset, break, or belly section typically run $1,500 to $4,500. Lining a full line that still holds its shape runs $6,000 to $15,000. Pipe bursting a collapsed line runs $6,000 to $18,000. Dig-and-replace, which is what a long belly or a line under the slab often needs, runs $5,000 to $25,000 and beyond when concrete has to come up.
The camera footage matters more than the report text. Ask for the video file, not just screenshots. A second specialist can read footage; they cannot read “moderate roots at 42 feet.”
What to do next
If you are buying, send the report and video to your agent and get a repair estimate before your inspection contingency expires. If you own the house, get a second camera opinion before agreeing to a full replacement, and ask specifically whether lining is possible. If the answer is a flat “no” with no explanation, get a third look.
Upload the report here and we will tell you which category each finding falls into and what the fair range is for your city.