I am bidding a job to paint ceramic tiled bathrooms. I am bidding by the square foot. Should I add extra for labor for having to primer the walls?
You need to charge or at least take the priming into consideration. If you think you are more competitive with a cheaper price than you can eat the priming. It all depends on how much you want to make for your labor after purchasing all materials. I would automatically charge for the priming as this is a necessary step.