brick cleaning recommendations needed

Hello,  I'm in search of a contractor who can clean the brickwork on my house.  Many years back, white trim paint accidentally dripped onto the bricks, and the painter addressed  issue by covering the drips with orange paint.  I'm looking for someone who can effectively remove this paint and gently clean the brick without using harsh chemicals or other methods that may cause damage.  If you have recommendations, please let me know.   Many thanks,Kathleen