Window BrandAverage Cost per Window Andersen $1,175 Castle $1,200 Champion $1,150 Harvey $1,600 Jeld-Wen $1,400 Larson $1,550 Loewen $1,500 Marvin $1,300 Milgard $1,100 Pella $1,250 Ply Gem $1,300 Renewal by Andersen $1,200 Simonton $1,500 Energy Efficiency Energy-efficient w...