Energy Efficient Window Replacement & Installation

Energy Efficient Windows for Homes in McLean, Fairfax, Silver Spring, Arlington, and Communities Throughout Washington, D.C., Northern Virginia, and Maryland

energy-efficient-windowsEnergy efficient windows are ideal for homeowners who want to curb their utility costs and keep the inside of their homes more comfortable, and with Long Windows, you can rest assured you will find an option that will suit your aesthetic tastes as well as your budget. With a legacy spanning nearly seven decades, our company has been chosen by countless homeowners throughout Northern Virginia, Maryland, and the Greater Washington, D.C. Metro area. Building a solid reputation on exceptional craftsmanship, superior service, and outstanding products, Long Windows is a name you can trust.

Our energy efficient insulated windows boast a wealth of features, including:

  • Industry-leading R-values – Our windows have R values ranging from 5.6 to 7.1, which is higher than most other replacement windows.
  • Low U factor – Long Windows have a U factor of .14, which is among the lowest available in the industry today.
  • Heat Mirror® technology – This innovative film blocks 99.7 percent of damaging UV rays and has even been considered one of the top 100 inventions of the millennium according to Popular Science.
  • Amazing noise reduction – Our windows can reduce the infiltration of outdoor noise, helping the inside of your home become a more relaxing environment.
  • Enhanced security – Long Windows feature two panes of glass, recessed steel locks in the sash, and superior frame strength, which make our windows resistant to break-ins.

For more information about our energy efficient home replacement windows for homeowners in Springfield, Rockville, Alexandria, and other communities in Northern Virginia, Maryland, and Washington, D.C., contact us today.