(240) 454-3799
7404 Lindbergh Drive, Suite G
Gaithersburg, MD 20879

Welcome to Shanco Windows

If you’re looking for one of the best window replacement companies in Maryland, Washington, DC and Virginia, you’re in luck. For more than 20 years, Shanco Companies has provided top quality window replacement and new window installation throughout the DC Metropolitan area. No job is too small or too big for us!

As a family owned and operated window company, Shanco understands the importance of high quality work and exceptional service – and we provide both in every single project we complete. Our motto – We live by our motto – “Customer Satisfaction is our #1 Goal" – every single day.

New Window Installation in MD, DC & VA

Are you building a new house in Maryland, Washington, DC or Northern Virginia? We know how equally exciting and stressful that can be, and we want to help make the process easier for you. There are a lot of decisions you have when building a new house, one of the most important of which is your windows. By consulting with a professional window company, you’ll be able to choose the best windows for your new home without the headaches of doing it on your own.

What style of windows do you want? Do you need dormer windows? What kind of material do you want for your windows – vinyl? Fiberglass? If you’ve done any research on new windows, you know there are many factors to consider when it comes to new window installation. If you’re ready to turn it over to the window pros, contact us today!

Window Replacement in MD, DC & VA

Window repair may seem more appealing than window replacement, but there are times when full window replacement is recommended or is necessary. Though it can seem overwhelming initially, window replacement offers a wide range of benefits over repair, in terms of both function and appearance. In fact, when you opt for a repair over replacement, trying to squeeze another few years out of your windows, it can have the opposite effect you intended and cost you more money down the road.

Window replacement is one of the best ways to maximize home energy efficiency and save money, and our window company offers a range of energy efficient models suitable for all styles of homes. When you need window replacement in Maryland, Washington, DC or Virginia, there’s only one name you need to know: Shanco!

Why Shanco Windows?

So, why should you choose us? Shanco stands apart from other Maryland window companies with:

Energy efficiency: the windows we offer are ENERGY STAR rated, which can save you hundreds of dollars annually. Inefficient windows are one of the biggest sources of energy loss in homes!

Reputable Contractors: Shanco maintains an excellent standing with the Better Business Bureau (BBB), has partnerships with many industry leaders in the DC area and is a Class A Licensed Contractor, licensed in three states (Maryland, Washington, DC and Virginia).

Great service: our window company gets a lot of repeat business, which reflects the quality of our work and excellent customer service. As we mentioned, customer satisfaction is our top priority and it shows. Check out our testimonials and see what customers have said about our services!

People have found our website using phrases like “window replacement Maryland,” “best Maryland window companies” and “window company Maryland.” If you’re searching along these lines, look no further. If you need to install new windows, Shanco has you covered.

Contact us for all your window replacement needs in Maryland, Washington, DC and Northern Virginia!

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EPA Certified Firm


MD:  MHIC #121665
DC:  #410511001109
VA:  #2705 075471A