Vinyl-Lite Window Factory has been manufacturing and installing windows/doors and siding since 1978. We have the area's largest showroom and our on-site factory located right here in Northern Virginia! Offering: Free Estimates * No Obligation * Lifetime Warranty * No Subcontractors * No Middleman * Products: Windows * Entrance Doors * Sliding Glass Doors * Garden and Bay Windows * Siding * Porch Enclosures * Custom Projects. If you can dream it, we can build it!