The Pella® 350 Series from Pella of Natick consists of remarkably crafted vinyl replacement windows and patio doors that are energy efficient and priced to suit any budget. All of these windows and patio doors mirror the same high standards as other Pella® replacement windows and patio doors.
Developed with a reinforced frame that’s 83 percent stronger than ordinary vinyl1, Pella 350 Series windows and sliding patio doors also feature precision corner welding to help withstand 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 tops industry standards for fade resistance2, so you can rely on beautiful, vivid colors for years down the road.
In addition to being appealing and enduring, Pella 350 Series replacement windows and patio doors tout our highest energy efficiency standards. The detail used to create energy efficiency is InsulShield® Advanced Low-E double-pane glass. Filled with argon gas, InsulShield glass options not only defend 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 reduce the amount of outdoor noise that comes inside your home.3