Custom Made Patio Doors and Windows in Los Angeles. Over 25 years of experience in floor installation. Want to update your floors, windows, or doors? Then give the experts over at CMC Contractors a call. We have ample experience in building and installing doors, windows, and floors. We have customization options and a large inventory of products from which to select from. Transform your house, business, or any property. New flooring can enhance any property's appearance without having to invest a lot of money. We have different types of laminate, wood, and tile floors. Call today and ask to view all our models and styles that are available at great prices.