Need plumbing help

It's a 3/4 pipe on municipal.

I did a water leak test overnight. Took a picture of the water meter, didn't use the water overnight for 8 hours and checked it in the morning and the meter hadn't moved at all.

I think what I have going on is cracks in the concrete slab that are seeping moisture into the house. Found a company online that deals with this sort of thing but who knows what it's going to cost. Going to give them a call today and find out.