Energy Efficient Windows

Windows and patio doors for the energy-conscious homeowner that are tested and built for your climate.


“We love our new windows. They are beautiful, quiet, and energy efficient.”- Gilroy, CA

At Milgard, we help consumers like you make an impact on their energy consumption by offering energy-efficient windows and patio doors designed for your homes comfort. We make it easy to meet local energy codes and green building efficiency standards with a selection of energy packages you can tailor to your specific climate. We conduct thermal simulations to improve energy performance in our windows and patio doors and we adhere to ENERGY STAR® v6 requirements that meet or exceed U-Factor and Solar Heat Gain Coefficient (SHGC) criteria for the areas in which we serve.