In addition to the build-up of dirt and dust, sidewalks are constantly subject to staining by spilled soda, coffee, melting ice cream, leaking garbage cans and gum. The longer these stains are allowed to sit there, the more difficult they will be to remove later. If allowed to sit and penetrate the surface area for too long, eventually your only option will be very costly sidewalk replacement. Typical walkway replacement can be in excess of fifty times the cost of pressure washing.
