Radtke Contractors Inc Categories Boat Sales, Services, & Shoreline Contractors 6408 Cross Road Winneconne Wisconsin 54986 (920) 582-4114 Visit Website Hours: 7am- 5pm Monday- Friday Driving Directions: Just off Highway 45 North of Oshkosh About Us Radtke Contractors has been serving the Lake Winnebago area since 1965. We are proud and excited to be serving the Green Lake Area starting in 2023! We provide custom boatlifts, docks, wharfs, seawalls, boat houses, and shoreline restoration. Our docks and boatlifts provide a convenient way to enjoy your time on the lake! Highlights Seasonal/ Permanent DocksSeasonal/ Permanent Boat liftsCustom Boat lifts SeawallsShoreline restoration Images Seasonal dock, boat lift, and roof × Seasonal dock on Lake Winnebago × Seasonal dock w/ 2 boat lifts and roofs × One of our 4 Barges × Jet ski Lift × Permanent dock, boat lift, and roof × Dock and lift × Public boat ramp × Barge 1 with new dock × Barge 2 with seasonal dock and lift × Barge 4 × Barge 2 × Barge 1 with riprap × Barge 1 × Radtke's 40' Seasonal dock section × Transporting seasonal docks × Share × Print Email Facebook Twitter LinkedIn Pinterest Tell a Friend ×