Quaker Windows & Doors
CityLine Aluminum Series
Clean and contemporary.
The CityLine series of windows and doors gives an immediate gloss of sophistication to your luxury home. CityLine empowers you to transform the look and feel of every room to create your perfect home.
Technology at the core.
CityLine windows are engineered and built for your unique home featuring Quaker’s® patented OptiCore® Technology. OptiCore® is an architecturally enhanced aluminum frame design that maximizes the thermal, structural and sound performance of each window. Originally engineered for large commercial buildings, OptiCore® Technology offers the most advanced thermal barrier system available for residential applications to maximize energy performance, while allowing for bigger windows and greater views throughout your luxury home.