Sewer repair needed . ( Sewer flows but it needs repair)

We have had the line cleanout out (after a blockage) about every two years !
We think (even though our sewer flows right now) we should make a permanent repair.
Problem is the bad part is under the sidewalk.
This will require some digging
Location is at Marsh/ Nixon
(Old SW)
If you can handle this (or advise who we should call) please text ( yes please text) our long time property manager Michael
at 775-813-9581
and he will describe the situation
Thank you
Jack