The Pella® 350 Series from Pella of North Carolina consists of impressively constructed 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 tougher than ordinary vinyl1, Pella 350 Series windows and sliding patio doors also feature precision corner welding to help resist warping and twisting over time. Plus, our exclusive SmoothSeamTM interior welded corners are nearly invisible. Adding to their lasting looks, our DuraColor™ exterior finish tops industry standards for fade resistance2, so you can count on beautiful, vivid 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 protect against extreme temperatures, but also block the sun’s UV rays. You can increase your energy efficiency even more with triple-pane glass, which also helps reduce the amount of outside noise that comes into your house.3