All Grand Horizons vinyl components meet or exceed performance requirements established and certified by the American Architectural Manufacturers Association (AAMA). In fact, every Grand Horizons window and patio door is backed with a Transferable Limited Lifetime Warranty that protects your purchase from the perils of chipping, cracking, peeling or blistering. 10-year warranty on Color Scape (exterior painted components) and woodgrain laminate.

50 Years on Hardware
50-Year Hermetic Seal
10-Year Accidental Glass Breakage Coverage (non-transferable)