My 1910 home has a stone foundation wall and a concrete floor with a french drain leading to a sump pump that removes most of the moisture. The walls don't leak when it rains.
But in some places the mortar is crumbling...even to the point of being dust. In other spots, a previous owner put what looks to be cement in place of mortar.
I'm planning on finishing a section of the basement for the kids, and want to replace the crumbling mortar in a few places to reduce dust. Can I do this myself, or should I hire a professional? If myself, what needs to be done? If pro, what kind of pro would I hire? A stone mason?