The Pella® 350 Series from Pella of Wellesley includes impressively designed 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 tougher than regular vinyl1, Pella 350 Series windows and sliding patio doors also include precision corner welding to help prevent warping and twisting over the years. And, our exclusive SmoothSeamTM interior welded corners are virtually invisible. Adding to their enduring style, our DuraColor™ exterior finish exceeds industry standards for fade resistance2, so you can rely on beautiful, vivid colors for the foreseeable future.
In addition to being beautiful and dependable, 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 protect against high temperatures, but also block the sun’s UV rays. You can boost your energy efficiency even further with triple-pane glass, which also helps lessen the amount of outdoor noise that enters your home.3