Insulated Window Replacement & Installation

Insulated Windows for Residents of Springfield, Fairfax, Falls Church, Gaithersburg, and Other Communities Surrounding Washington, D.C., and in Northern Virginia and Maryland

insulated-windowsFor insulated windows that will help protect your home from outdoor temperatures, noise, and more, look no further than Long Windows. For nearly 70 years, homeowners throughout Virginia, Maryland, and the Washington, D.C. area have trusted our quality brand, and choose us time and time again for quality products and outstanding service. You can rest assured that when you have our high-quality insulated windows installed, you can not only help improve your home’s energy efficiency, but they can also improve your home’s curb appeal and overall value, too.

There are many benefits to choosing our energy efficient windows for your home, including:

  • Keeping the inside of your home more comfortable – Our house windows feature R-values that range from 5.6 to 7.1 and a U factor as low as .14. What does this mean for you? That our windows are highly efficient at eliminating heat transfer, keeping your home’s interior cooler in the summertime and warmer in the winter.
  • Preventing UV damage in your home – Our insulated home replacement windows boast Heat Mirror™ technology, which blocks 99.7 percent of UV ray infiltration. This means our windows provide nearly twice the protection typical windows can against sun fade damage to your carpeting and furnishings.
  • Reducing outdoor noise infiltration – Our double pane windows can help keep most outdoor noise from entering your home, resulting in a more peaceful indoor environment.

Contact us today for more information about our insulated windows for homeowners in Rockville, McLean, Arlington, and all nearby communities.