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Double Pane Window Replacement and Installation

Double pane window replacement for Boston and New England, Washington D.C., Virginia and Maryland.

Double pane windows from Long Windows® are the ideal choice for homeowners who want to improve their homes’ energy efficiency.

We have built a solid name on providing exceptional products and are proud to install insulated vinyl replacement windows that can help increase the value and curb appeal of your home.

Our double pane insulated windows offer the following benefits:

When you choose us as your window contractor, you can be confident that you will have a superior, worry-free experience throughout the entire window installation process.

Our technicians will arrive when they say they will, show outstanding care and respect to you and your home, clean your windows before they leave, and will not consider the job done until you are completely satisfied with the work we have performed.

For more information about our double pane windows, fill out the form on this page or contact us today.

Get educated: Learning more about new window replacement and window installation.

Ready for new windows? Here’s what Long Windows has to offer.

  • Window Options and Showcase
    Long Windows offers double hung windows, casement windows, awning windows, hopper windows, slider windows, bow and bay windows, picture windows, garden windows and specialty windows in a variety of interior and exterior color options and grille designs. See what Long Windows can do for your home.

  • Window Benefits and Specifications
    Protection from harmful UV rays, noise pollution and potential intruders — Long Windows can make your home safer and more comfortable. Learn more about energy-efficient windows from a family business with over 70 years of home improvement experience.

  • Window Testimonials
    Homeowners throughout the Washington, D.C., Maryland, Northern Virginia and West Virginia regions enjoy the unique benefits provided by Long Windows. We are proud to now serve Boston, Mass. and the New England area, as well. See some of our recent window work and learn how people just like you enjoy the view provided by Long Windows.

Let's talk about windows.

If it's time to replace your windows, we should talk today. We look forward to protecting your family and your home.

*On initial visit only. Minimum purchase required. For windows, three or more windows required. Cannot be combined with other offers. Prior sales excluded. Some exclusions may apply. Discounts not valid on restoration division purchases. Offer expires 11/25/19.