Poor-quality windows and doors are often a leading cause of high heating and cooling bills. Making an investment in Seven D Industries Windows & Doors can pay off down the road in lowering your energy costs year-round.

IRC 2006 Climate Zone ratings

MD Climate Zone OH Climate Zone

PA Climate Zone VA Climate Zone

WV Climate Zone

Glass options—Different climates require different window technologies for best performance. Seven D offers a variety of choices to meet or exceed the particular needs for the climate of your area.

Low-E coatings—Optional Low-E glass coatings combined with Argon filled glass units help reduce heat transfer and UV rays that can fade carpets, walls and furniture.

Energy efficiency—Many Seven D products meet or exceed ENERGY STAR® standards. That energy-efficient performance can mean substantial savings on your heating and cooling bills.

Weather stripping—Our superior weather-stripping make Seven D windows some of the best-performing windows available.

For performance and ratings details of specific Seven D products, please contact our technical Department at webm@7dindustries.com.

Commitment to Energy Efficiency and Information
Seven D meets or exceeds the certification criteria to maintain a membership with the National Fenestration Rating Council (NFRC) , a non-profit organization providing accurate information to measure and compare energy performance of window, door and skylight products.