The Area's Top Provider Of Quality Parking Garage Cleaning & Maintenance Services. Parking Garages should be cleaned in the Northeast at least once a year, and in high traffic garages twice a year, due to the salts and other contaminants that get into the garage surfaces. They eventually get absorbed into the concrete parking surfaces and soon will cause the rebar to rot out. When this happens the concrete begins to leak,crack and in the worse case scenario the garage itself can be condemned. We use state of the art hot and cold water powerwashing machines ranging up to 4000 PSI with up to 200+ degree water, surface machines and any cleaning solutions needed for all parking garage cleaning. Our knowledgeable staff is experienced on how to lighten or when possible remove stains completely. Each Parking Garage cleaning is approached based upon the existing conditions, and we will use the correct products and methods specific to your facility's cleaning and maintenance requirements.