KLM Windows & Doors

KLM Windows & Doors, Inc. is family owned company founded in 2000 by Mariusz Klejno. We have been in business for 16 years now and are proud of our growing business. We serve Chicagoland and the surrounding suburbs. Customer satisfaction is our main objective and throughout the years we've received only positive feedback from our customers. What are the benefits of new windows? New windows improve your home's energy efficiency, lower heating and cooling bills, reduce exterior noise, enhance the beauty of your home, and improve your home's security.