The Pella® 350 Series from Pella of Woburn features well constructed 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.
Created 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 years. Plus, 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 count on beautiful, enduring colors for the foreseeable future.
In addition to being appealing and dependable, Pella 350 Series replacement windows and patio doors are our most energy efficient. The technology 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 repel 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 enters your room.3