Under slab sewer line replacement plumbing contractor

[Jinxiang Xu]

New to being a landlord, and already forked out $20k for foundation repair on this rental house. Now the post test reveals I have pvc sewer line leaks under the concrete foundation. plumber has found multiple breaks in the line which need to be repaired and has provided an estimate for tunneling under the house and replacing entire 45ft main line!

Definitely a very expensive lesson learned, need recommendations for a reasonable priced, good contractor please?

[Bruce Lynn]

Quote from @Jinxiang Xu:

New to being a landlord, and already forked out $20k for foundation repair on this rental house. Now the post test reveals I have pvc sewer line leaks under the concrete foundation. plumber has found multiple breaks in the line which need to be repaired and has provided an estimate for tunneling under the house and replacing entire 45ft main line!

Definitely a very expensive lesson learned, need recommendations for a reasonable priced, good contractor please?

Sorry to hear this.  Very common problem around DFW.  As much as I can I try to keep my clients out of serious foundation repair as it is typically not a one time repair, but an ongoing issue over time.  There are signs to look for if you know what to look for and certain areas of town are far worse than others.
Where is the house?  What city?
One way to save some money, especially if you are local is to split the job.  Hire a cheap crew to tunnel and the real plumber to set and replace the pipe.  Don't pay expensive plumber to dig ditches.  There are companies also that just tunnel.