Radtke Contractors Inc

Radtke Contractors Inc

Boat Sales, Services, & Shoreline Contractors

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!


  • Seasonal/ Permanent Docks
  • Seasonal/ Permanent Boat lifts
  • Custom Boat lifts
  • Seawalls
  • Shoreline restoration


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