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Customer Reviews

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Customer satisfaction is what drives us to provide the best quality products and reliable services year after year. We would like to thank our customers that took the time to provide us valuable feedback.

See our most recent reviews below.

For more reviews check out Yelp, Angie's List   & Facebook.

They are experts in their field and a pleasure to work with. 

The installation went really well.  Both young and Joon really showed that they are experts in their field and a pleasure to work with.  We are very happy with our Okna windows and noticed that there is less draft and more sound proofing now.  We haven’t used the doors much - quarantine, but noticed that it is...
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Anges, H | Reston, VA

You will not find another company that treats your home like it was theirs

We had Windows on Washington (WoW) install a new sliding glass door and could not be happier with the end result and even the process.Knowing you are likely going to do a lot of research, get multiple cost estimates and then drink heavy amounts of your favorite 'helper' when you finally realize the cost, here is...

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Eric & Lucia W | Alexandria, VA

Meticulous, open and honest

Mr. Kim was amazing throughout the whole process! He was fast, efficient, but also very meticulous about his work. I love my windows! Windows on Washington came earlier than I expected and was so pleased to have them do the work a day after Christmas. That is true dedication! Mr. Kim's attention to detail and...

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Taylor, B | Cheverly, MD