The Pella® 350 Series from Pella of Kalamazoo includes remarkably designed vinyl replacement windows and patio doors that are energy efficient and priced to suit any budget. All of these windows and patio doors mirror the same demanding standards as other Pella® replacement windows and patio doors.
Created with a reinforced frame that’s 83 percent tougher than regular vinyl1, Pella 350 Series windows and sliding patio doors also offer precision corner welding to help withstand warping and twisting over the seasons. Plus, our exclusive SmoothSeamTM interior welded corners are practically invisible. Adding to their continuing style, our DuraColor™ exterior finish tops industry standards for fade resistance2, so you can count on beautiful, vibrant colors for years to come.
In addition to being good-looking and durable, Pella 350 Series replacement windows and patio doors are the most energy efficient that we carry. The detail used to create energy efficiency is InsulShield® Advanced Low-E double-pane glass. Filled with argon gas, InsulShield glass options not only shield against intense temperatures, but also block the sun’s UV rays. You can increase your energy efficiency even higher with triple-pane glass, which also helps lessen the amount of outside noise that comes inside your house.3