Contact Address:11865 Prospect RoadStrongsville, OH 44149 Phone: (216)839-9274 About US Another service that we offer after we thoroughly pressure wash your driveway and other concrete surfaces is concrete sealing. Let Powergreen protect your concrete against harsh Ohio freeze-thaw winters by using one of our Siloxane-Silane penetrating sealers. When cold weather comes you will want one of our sealers to keep the salt and water from damaging your drive or patio.