Turn-Key Tunneling, Inc. is an industry leader in trenchless tunneling and boring operations. Our services include installation of 8" to 84" steel casing pipe utilizing traditional auger boring methods, vertical shaft construction, installation of liner plates, slip-lining to restore damaged or failed sewers, pipe jacking and hard rock boring using SBU technology. We are capable of handling design-build projects with our in-house Professional Engineer. We are certified EDGE, DBE & SBE in Ohio and certified DBE in West Virginia & Tennessee.