The Pella® 350 Series from Pella of Boston includes impressively designed vinyl replacement windows and patio doors that are energy efficient and priced to appeal to any budget. All of these windows and patio doors reflect the same rigorous standards as other Pella® replacement windows and patio doors.
Created with a reinforced frame that’s 83 percent stronger than normal vinyl1, Pella 350 Series windows and sliding patio doors also offer precision corner welding to help resist warping and twisting over the years. Plus, our exclusive SmoothSeamTM interior welded corners are virtually invisible. Adding to their continuing style, our DuraColor™ exterior finish surpasses industry standards for fade resistance2, so you can expect beautiful, vivid colors for years down the road.
In addition to being good-looking and dependable, Pella 350 Series replacement windows and patio doors tout our highest energy efficiency standards. The detail used to create energy efficiency is InsulShield® Advanced Low-E double-pane glass. Filled with argon gas, InsulShield glass options not only protect against high temperatures, but also block the sun’s UV rays. You can increase your energy efficiency even further with triple-pane glass, which also helps reduce the amount of exterior noise that comes inside your home.3