Your source for Replacement Windows, Doors & Siding for over 37 years. Advanced Window & Siding is one of DuPage Countys oldest door and window replacement companies. Based in Winfield, IL, we cater to all your needs and concerns by offering you superior quality windows and doors. Choose the best from our wide selection of replacement windows, doors and siding to give your existing residential space a new and improved look. Our foundation is based on honesty, integrity, and the commitment to a job worthy of repeat business and referrals.