What people want to be sure about first
Is this just a way to sell me a bigger repair?
It can be, in the sense that an inspection with no footage handed over is an opinion dressed up as evidence. That is exactly why the recording should leave with you.
Footage you hold can be reviewed by anyone. If two contractors look at the same video and disagree, you learn something useful either way.
Can you inspect the line if there is no cleanout?
Usually, though it costs more and is more disruptive. The alternatives are pulling a toilet to enter through the flange, or going in through a roof vent where the layout allows.
If you are having other work done anyway, installing a proper cleanout is worth considering. It makes every future inspection and clearing faster and cheaper.
The seller says the sewer was inspected last year.
Ask for the footage and the date, not the conclusion. An inspection is only as good as the file behind it. A year is long enough for roots to return or for a belly to deepen.
If no recording exists, you have a claim rather than a record. On a property built before 1980, which describes roughly 16.7 percent of county housing, that distinction is worth the cost of your own run.
Will the camera tell you exactly how much a repair will cost?
It gives the two facts a quote is built from: where the defect is, and how deep the line runs at that point. Without those, any excavation price is guesswork.
What it does not decide is what sits on top of the line, whether caliche will slow the dig, or how much restoration you want. Those are settled on the surface after the footage.
Can a camera see a leak in the sewer line?
It can see the opening that a leak is coming from, such as a crack, a separated joint or a hole. It cannot see water escaping into soil from outside the pipe.
For clean water leaking from supply piping, a camera is the wrong instrument altogether. That work uses acoustic and pressure methods instead.