There is this company in Germany who clean pipes from a couple inches to several feet in diameter.
They will clear “constipations” in an emergency but that’s expensive and would be much cheaper to let them do regular maintenance to prevent that. Yeah, just sign here and we’ll take care of (and bill) you regularly.
They also pressure wash heavy equipment and roads after a spill, but that’s it, no plumbing or piping or anything else.
The strange thing about them is they design and build their own equipment and vehicles which is big bucks so they must be doing some expensive emergency “constipations”.
They build vehicles to get their equipment to hard to reach locations, and I suppose the gyrocopter is to follow pipelines... or the boss always wanted one.