Sewer scopes are worth it in order to avoid future costly repairs

We will come out and identify where the sewer line access is located. That might be outside, in the basement, or crawlspace, through a toilet, or even through a roof vent. After locating the access point, we will run our camera or snake (depending on the service) all the way out the city main.

They also give the information on how often a sewer line should be maintained.

A mainline cleaning is recommended every so often (how often depends on the condition of the sewer line, and if there are in trees located in the yard) to maintain the full integrity of the sewer line. A mainline back up is not only gross but can be costly. If your home floods with a sewage backup, you have to hire the professionals to come in and clean the correct way. Not to mention the damage to your home and belongings. This is also a quality investment, to avoid a costly future payout