Recommendation from the B4D Forum:

Most salons here that do pedicures just do the toenails (cuticles, filing, buffing) and polish, so if you want someone to take off your calluses, this is the place to go! Ask for the “tratamento tradicional” - your feet will be beautiful and nice and soft, and then you can go to a traditional salon afterwards to get your polish done.

They do several other types of treatments as well - reflexology, paraffin, etc.

They have several locations in Brasilia, mostly in shopping malls.