Share: Excavation Extreme Excavation 510 93rd Ave SE Olympia, WA 98501 (360) 754-5595 (360) 357-0881 (fax) Hours: Hours Vary. About Map About We are 4th Generation Family Owned Construction Company that specializes in: Earthmoving, Land Clearing, Roadbuilding, Underground Utilities, and Commercial and Residential Site Development. What's Nearby? Distance: 5 10 15 20 25 50 mi.