Premium Vinyl Window Fabricator. Full line of Energy Star(R), qualified vinyl windows and patio doors. Outstanding product design and craftsmanship results in products contractors find easy to install and homeowners find easy to enjoy. Lifetime Warranty. With a multitude of accessories to suit virtually every project scenario, Paradigm windows are gracing views in homes and businesses from Maine to Minnesota, and as far south as the Florida Keys. See why your neighbor has chosen Paradigm windows for their project! Today!