The Pella® 350 Series from Pella of Mankato consists of impressively designed vinyl replacement windows and patio doors that are energy efficient and priced to suit any budget. All of these windows and patio doors reflect the same high standards as other Pella® replacement windows and patio doors.
Engineered with a reinforced frame that’s 83 percent stronger than normal vinyl1, Pella 350 Series windows and sliding patio doors also include 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 lasting style, our DuraColor™ exterior finish exceeds industry standards for fade resistance2, so you can count on beautiful, vivid colors for years down the road.
In addition to being good-looking 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 high temperatures, but also block the sun’s UV rays. You can improve your energy efficiency even more with triple-pane glass, which also helps reduce the amount of outdoor noise that enters your house.3