The Pella® 350 Series from Pella of Winston-Salem includes remarkably crafted 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 demanding standards as other Pella® replacement windows and patio doors.
Developed with a reinforced frame that’s 83 percent stronger than normal vinyl1, Pella 350 Series windows and sliding patio doors also feature precision corner welding to help prevent warping and twisting over time. Also, our exclusive SmoothSeamTM interior welded corners are virtually invisible. Adding to their continuing looks, our DuraColor™ exterior finish surpasses industry standards for fade resistance2, so you can rely on beautiful, vivid colors for years to come.
In addition to being beautiful and enduring, Pella 350 Series replacement windows and patio doors are our most energy efficient. The feature used to create energy efficiency is InsulShield® Advanced Low-E double-pane glass. Filled with argon gas, InsulShield glass options not only defend against extreme temperatures, but also block the sun’s UV rays. You can boost your energy efficiency even more with triple-pane glass, which also helps lessen the amount of outside noise that comes into your room.3