I am disappointed with the poor performance (long term) of my anderson windows. The 800 number is not helpful, and the only thing covered in the bogus 20 yr warranty is spontaneous glass breakage!! NO structural integrity. My windows began to fall apart, crack, split vinyl and trim about 5 years ago. I have winged it so far with replacement “pieces” found in hardware stores that I glue myself for that do-it-yourself look. At this point, I just want to maintain function. The windows are 19 years old. I am very careful if I open an Anderson window, as it seems they cannot take normal use. I would NEVER buy them or recommend them. EVER. Mine came with my house, built by another in 1985