The best windows are made to last. They're strong. With beauty that's timeless and with mechanics and materials that really last. Modernview Windows are made to last and are supplied through quality lumber dealers to assure the buyer the comfort of knowing that their windows will be trouble-free and energy efficient for a long time. Suddenly, the light feels more voluptuous. They're not just ordinary windows. They're strong, durable, long-lasting and virtually maintenance free. Kas-Kel has been making windows and doors since 1954 and takes great pride in offering beautiful windows crafted of the best materials. The company uses 100% virgin vinyl, nonconductive glass, and reliable operating parts, so our windows offer the highest value in the marketplace.