The Pella® 350 Series from Pella of Colorado Springs 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.
Engineered with a reinforced frame that’s 83 percent stronger than regular vinyl1, Pella 350 Series windows and sliding patio doors also include precision corner welding to help withstand warping and twisting over the seasons. And, our exclusive SmoothSeamTM interior welded corners are nearly invisible. Adding to their continuing style, our DuraColor™ exterior finish exceeds industry standards for fade resistance2, so you can expect beautiful, vibrant colors for the foreseeable future.
In addition to being beautiful and durable, 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 shield against extreme temperatures, but also block the sun’s UV rays. You can boost your energy efficiency even further with triple-pane glass, which also helps decrease the amount of outdoor noise that comes into your house.3