Why Thermo-Tech: 

Thermo-Tech is a family owned and operated company headquartered in Sauk Rapids, MN that manufacturers vinyl windows to fit any new construction or replacement window need.  


Thermo-Tech offers a lifetime limited warranty on all their Vinyl frames, sash parts and window hardware along with a 20-Year warranty on the insulated glass. 


Thermo-Tech's Premium Windows are made of vinyl. They use an exclusive multi-chambered frame and sash extrusion design to maximize the energy efficiencies. A Premium Vinyl window won't peel, chip, crack, blister or rot and requires no painting or staining.