For over 20 years, Metropolitan High Performance Windows has been installing beautiful, affordable and energy-efficient replacement windows and patio doors in the homes of Orange County, CA residents. Our replacement window company offers free estimates with no pricing games, no pressure sales tactics and the fastest turnaround in the industry. All our patio door and window replacements have a lifetime transferable warranty and our installation teams are 100% in-house. All our windows and doors are American made and include brands such as Anlin Windows and Greenworld Windows. We invite you to visit our website and read our Orange County customers' replacement window installation reviews from Angie's List, Yelp, Facebook and Google reviews.