Sewer Design, Installs & Repairs.
Since 1986 Cornerstone Construction Issaquah, WA has been designing and creating sewer systems that meet the highest standards of functionality and reliability. Our experienced team is willing and able to design, install, and repair sewer systems and other underground utilities for both residential and commercial clients.We also provide superior service in: • Excavation• Backhoe• Dump truckHomeowner Services: • Clogs • Root intrusion • Collapsed pipe • Pipe cleaning • Video inspection • Pipe replacement Creating and maintaining a reliable sewer and underground utility system is vital to your home or business. When you are in need of a team that goes above and beyond the call of duty, give the experts at Cornerstone Construction a call.