[Five Star]

call a mason contractor! and tell them you want the walls parged. you may be able to save some money if you clean all the loose stuff off your self.

 

[Ron6519]

If the spalling is minor, you might just be able to scrape off the loose stuff, clean the wall and apply a Thoroseal cementious paint. It will fill in the minor recesses.
A painting contractor would handle that.
Ron

 

[Bob Mariani]

Depends on the extent and depth of this problem. If it is minor than follow Ron6519.. If it is deeper and you are not possible that the damage is more serve call the mason contractor. If you have a flat steel trowel and a stiff mason brush do the work yourself.

 

[Dusty]

Thanks for the ideas. I wouldn't have thought of calling a mason or painter. I was going to do it myself but I just have too many things to do before selling so thought this job might be a good one to hand off to someone else.