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Long Windows: Change your outlook.

We are the East Coast’s window replacement and window installation experts. Long Windows is the exclusive provider of Quantum2 Heat Mirror® windows for your Washington, D.C., Maryland, Northern Virginia or West Virginia home. Now serving Boston, Mass. and the New England region.

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    Long Windows® Benefits and Specifications

    What are the benefits of home replacement windows?



    Long Windows security

    We build Trust and Peace of Mind into every Long Window.

    Superior craftsmanship, outstanding products and honest customer service sets Long Windows apart. Long Windows is the exclusive provider of Quantum2 Heat Mirror windows in the Washington, D.C. region and now proudly provides our windows in Boston and New England, as well. We believe it is the best product on the market.

    Why? We did our research. Scientists developed by heat mirror technology at the Massachusetts Institute of Technology for military applications. Over the years, it made its way into the residential home market. Commercial buildings such as The Empire State Building use heat mirror windows, too.

    It’s a simple but revolutionary product — a transparent, weightless film coated with nanoscopic, heat-reflecting metal is sealed with inert, thermal-insulating gases between a pair of double-thick window panes. Our Quantum2 Heat Mirror window is the best decisions you can make for your home.

    The only thing stronger than the Quantum2 Heat Mirror window is our warranty.

    Our new windows are maintenance-free. They do not rot, rust or fall apart. Our windows don’t have the strings, levers or other gizmos. Those gadgets can  break, tangle and limit the use of your new windows.

    However: if you ever have any problems with your Long Windows replacement project, you are protected by our limited lifetime warranty on labor and materials. If you ever have a problem with your new windows or the window installation, we will make the situation right because we believe in 100% customer satisfaction. Contact us today.  

    Need help paying for your beautiful new windows? We also offer worry-free financing — we’re happy to work with you to find an affordable solution. Learn more now.

      Request a Free Estimate

      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 7 decades 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.

      *Subject to credit approval. Interest is billed during the promotional period but all interest is waived if the purchase amount is paid in full within 12 months. There are no required minimum monthly payments during the promotional period.  Financing for GreenSky® consumer loan programs is provided by federally insured, equal opportunity lender banks. NMLS #1416362

      By submitting a form, I authorize Long Home Products to contact me with information abouts its products and services via mail, email, phone and/or text at the contact information provided, even if I am on the national do not call list. Long Home Products may use automated telephone technology to initiate calls to its customers. Calls and in person estimates may be recorded for quality and training purposes.