The Pella® 350 Series from Pella of Calgary features remarkably crafted vinyl replacement windows and patio doors that are energy efficient and priced to fit 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 ordinary vinyl1, Pella 350 Series windows and sliding patio doors also feature precision corner welding to help withstand warping and twisting over the years. Also, our exclusive SmoothSeamTM interior welded corners are nearly invisible. Adding to their continuing looks, our DuraColor™ exterior finish exceeds industry standards for fade resistance2, so you can rely on beautiful, vibrant colors for the foreseeable future.
In addition to being good-looking and enduring, Pella 350 Series replacement windows and patio doors are the most energy efficient that we carry. The technology 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 deflect the sun’s UV rays. You can boost your energy efficiency even more with triple-pane glass, which also helps lessen the amount of outdoor noise that comes inside your home.3