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Window Replacement in Washington, DC

Washington, DC row home with windows
Houses in the Capitol Hill neighborhood of Washington, DC

Long Windows™: the window replacement experts in Washington, DC. 

Since our founding, Long Roofing has called Washington, DC home. We first opened our doors in 1945, operating out of a decommissioned city bus on the corner of 18th St. NE and Rhode Island. The Long brand quickly expanded and became a household name in DC and the surrounding area.

Today, we’re the Mid-Atlantic’s home improvement experts in everything from windows and roofing to siding and doors. Our commitment to superior service and quality products means that we provide only the best when it comes to window replacements in Washington, DC — and it’s why our customers trust us for their home improvement projects time and time again. 

Classic row house or modern upgrade – we’ve got the windows that fit your style.

Many homes in DC have a distinctive look, and we understand how important maintaining your exterior can be. Our windows come in a variety of styles, shapes and colors to match whatever aesthetic you want your home to emulate. 

From classic row houses to more modern exteriors, we’ll work with you to make sure your replacement windows suit your Washington, DC home. Our quality frames and special Heat Mirror glass are custom made for your home to guarantee a perfect fit. 

View the world in a different light with Quantum2 Heat Mirror Replacement Windows

It’s no secret that DC summers can be just as brutal as its winters. For the best in home comfort and energy savings, you need a window that can keep up with the highs and lows of DC weather. 

No matter your budget or style preferences, all Quantum2 Heat Mirror Windows come standard with:

  • Two panes of double-strength glass
  • Heat Mirror suspended film that blocks ultraviolet light
  • Twin air spaces filled with a proprietary blend of inert gases
  • Five layers of high-performance Low-E coating
  • A dual sealant system
  • Sustainable foam insulation injected into the sash

Why choose Quantum2 Heat Mirror Replacement Windows?

Your windows need to withstand the challenges that come with city living. Choosing Quantum2 Heat Mirror windows from Long Windows means you’re getting the best quality product on the market for your DC home. See what makes these windows top-of-the-line:

  • Enhanced security for your peace of mind. With recessed steal locks encased between double-paned, hard-to-shatter glass, your home will be protected against any potential safety threat.

  • Reduced outside noise for a calmer home. Your home is your sanctuary, even in the heart of the city. With noise pollution-reducing technology, our Heat Mirror windows help block any unwanted sounds coming from the city streets around you.
  • Increased insulation for climate control. Sealants, Low-E coatings, inert gas chambers, double-strength glass and the powerful Heat Mirror film keeps summer heat and cold winter air out of your home to provide increased comfort and reduced energy costs. 

Never worry about your windows again.  We bring peace of mind to your window replacement project with our no-fuss warranty. If there’s ever a problem with your windows, we’re here to make it right. Learn more about our commitment to your satisfaction by reading about our warranty here

Get the home of your dreams without breaking the bank.

With our all-inclusive pricing and payment options, we’ll help you get the new windows you need regardless of your budget. We have special relationships with banks to help relieve the financial burden new windows can pose. Plus, we offer special financing directly though Long Roofing to expedite the process. Learn more about our financing options today. 

Change the way you see the world.

Request a free, no-obligation in-home estimate for Washington DC replacement windows here or by calling us at 1-800-417-LONG (5664).

*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.