Hire a professional pressure washing company in Allentown, PA If you want your home to look its best, keeping it clean is important. You'll need a reliable pressure washing company you can count on to remove algae, mold, dirt and grime from all your exterior surfaces. If you're located in the Allentown, PA area, Patriot Exterior Cleaning is an easy choice. Not only do we have years of industry experience, but we're also known for our friendly customer service.