ProVia Door Dealer Northern Virginia is Fairfax Contractor. ProVia Door Dealer Northern Virginia is Fairfax Contractor. Fairfax Contractor has a long history of being a dealer of ProVia doors. We are experts in installing and providing Provia Doors. Fairfax Contractor can provide ProVia doors to homeowners and builders in Northern Virginia. ProVia doors are unquestionably the best custom replacement doors you will find. ProVia doors are custom built to your specifications. All of ProVia doors are rated as Energy Star. Energy Star doors are built to specifications set by the U.S.A. Environmental Protection Agency.