Sewer Line replacement excavation leads to sloping floor

[Jeff K.]

Greetings,

I recently had my sewer line replace. I hired a plumber who did the excavation as well as the replacement as he specialized in sewer lines. It appeared he may have dug to close to the house as the floor now has a small slope in the direction where the digging took place, additionally some separation of the flooring, and a door out of plumb(will shut but wont lock completely). This is all on an addition to the front of the house. The tenant just brought this to my attention. I know this is a serious issue. My question is how to proceed. Should I contact a structural engineer myself? Should I contact my insurance?  Should I contact the plumber who did the excavation and try to use their insurance? Any other suggestions? Any input would be greatly appreciated as I want to address this as soon as I can. Thank you!

[Jon Holdman]

I'd contact the plumber who did the work.  And if you get any pushback, I'd contract an attorney.  This could get messy.