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Windows On Washington, Ltd.

Sliding Door Installation, 3-5 New Window Installation, 6+ Room New Window Service,

About us

Simply put - we believe that improving your home should be enjoyable. That is why we spent years designing our consultations, installations, and customer care experiences to minimize stress and provide every client with a fair and honest home improvement experience. Founded in 2005, Windows on Washington has become one of the area’s most respected home improvement companies because we make our clients' homes more beautiful, comfortable, and energy efficient. Our award winning approach to home improvements has earned us the Angie's List Super Service Award for 7 consecutive years. Our A+ rating with the BBB and hundreds of online reviews show just how dedicated we are to our customers' 100% satisfaction.

Business highlights

21 years of experience

Memberships & Affiliations

NARI

Services we offer

Air Sealing and Insulation, Gutters, Replacement Windows and Entry Doors, Roofing, Siding

Amenities

Free Estimates

Yes

Warranties

Yes

Accepted Payment Methods

  • CreditCard
Reviews
4.843 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
58%
4
12%
3
0%
2
0%
1
0%

Filter reviews by service

Showing 1-25 of 43 reviews
Hilary F.
Dec 2025
5.0
3-5 New Window Installation
$7,000
How wonderful my most lovely windows are from Windows on Washington & their installation team was brilliant at keeping all my furnishings covered. They were on time, efficient & most polite. I highly recommend them.

A.J. S.
Jul 2020
5.0
Doors (Exterior) Installation and Replacement
Yes, I recommend this pro
Installer even fixed an issue with another company's install on different door.

Allan M.
Jul 2020
5.0
Yes, I recommend this pro
Excellent service during entire process! The sales rep and person who took the final measurements were professional and informative. Becky was great with communications and scheduling. She was very understanding and patient about postponing installation since we are high risk. Joon and the installation team were prompt, courteous, meticulous, efficient, and safe. The results were great, the windows look nice and work well. We would not hesitate to use WOW in the future and highly recommend to anyone.

Terri J.
Jan 2020
5.0
6+ Room New Window Service
Yes, I recommend this pro
Excellent company and reviews of window product are great. Sales consultant was very knowledgeable . Markets on quality of window not on pricing which sold us.

Mergaye A.
Jun 2019
3.5
6+ Room New Window Service
Yes, I recommend this pro
Nothing to add until project is completed

Ashley H.
Feb 2019
5.0
3-5 New Window Installation
Yes, I recommend this pro

David S.
Oct 2018
5.0
Yes, I recommend this pro
$8,000
Very very impressed. For anyone that wants a window company that does a top notch job, sells an excellent product, and doesn't want to ever worry about any part of their window installation, this is the company to use in the DC area. For many of you, you probably started out like I did, looking for the best value, generally optimizing for price. The more and more I dug into Wow, the more I realized how horribly wrong things can go with getting the wrong type of window, choosing a mediocre manufacturer, and ending up with a subpar installation. My experience with Wow was none of these things. They sell a very high quality product, the OKNA 700s, gave me a lot of confidence they would fix any issues that arrive.for the next 20 years or more and did a picture perfect installation. From the detail on the caulking and insulation to making sure none of my drywall was damaged, I was incredibly impressed. Are they the cheapest in town? No. But they are the best. If you want to buy windows and not have to worry about the installation, quality of the windows or lifetime issues around the windows... use these guys. Hands down.

John T.
Sep 2018
5.0
Sliding Door Installation
Yes, I recommend this pro
$14,760
I had four sliding glass doors replaced. Most companies were pre-set on the one or two options they would sell me. Windows on Washington (Zach) took the time to measure and discovered all of my doors were a non-standard size by 4" each, which I independently verified (star 1 for WoW). Then they offered several options, to include competitive pricing on a competing bid (star 2 for WoW). Ultimately we "settled" on low maintenance 5-point locking doors with exterior keyed locks, which only WoW offered as an option (star 3 for WoW). For the installation they worked around the unusually rainy season and our schedule to get them installed. We knew we had wood rot in the old door frame, but they (Young Kim and crew) also repaired part of the housing structure at no additional cost (star 4 for WoW). Finally, they offered us 12-months with Zero percent financing (star 5 for WoW). We did have a few issues along the way, but once I communicated with WoW they (Cathy Mejia) were incredibly helpful and worked to make things right... what more could anyone ask for? I WILL BE using them again to replace the front door and a few other items on my fixer upper. I HIGHLY recommended this team!

Dennis A.
Sep 2018
5.0
Yes, I recommend this pro
$3,550
I got 5 windows installed on the front of my townhouse. Windows on Washington were professional from the start. Greg did a great job showing me their window options and they do use excellent quality windows (I reviewed the windows online myself). The installation went very smoothly, except one of the windows came with the 8x8 grid pattern instead of 6x6; once I noticed the mistake and told the installer, he called the office right away and they ordered the correct one to have it replaced within a few minutes. One thing to note is that the whole process takes a while, since they are custom windows that have to be ordered and made. For me, it took about 2 months total from the consultation through the installation (early July to early September). Perhaps if you order in the winter, the manufacturer would be able to make the windows quicker.

Nate G.
Sep 2018
4.0
Doors (Exterior) Installation and Replacement
Yes, I recommend this pro

Robert C.
Sep 2018
5.0
6+ Room New Window Service
Yes, I recommend this pro
Jose was very professional and did a great job.

Dan A.
Aug 2018
5.0
6+ Room New Window Service
Yes, I recommend this pro
$12,000
The workers were skillful, efficient and respectful throughout the process. Would highly recommend.

Daniela Y.
Aug 2018
5.0
6+ Room New Window Service
Yes, I recommend this pro
We replaced all 23 windows in our town house and 3 doors, 2 of them sliding patio doors. The project was flawlessly executed- from planing to scheduling to installation.even the weather cooperated! Windows were made on time, the crew showed on time and finished ahead of schedule. They were very respectful to our requests, cleaned after themselves and explained in detail all features and how to take care of the new windows. The windows and doors are solid and good quality, we feel the difference already. We highly recommend Windows on Washington !

John S.
Aug 2018
4.5
Doors (Exterior) Installation and Replacement
Yes, I recommend this pro
$2,800
work completed on time

Bernard F.
Jul 2018
4.5
6+ Room New Window Service
Yes, I recommend this pro
Reliable,professional,fair estimate

Juliette G.
May 2018
5.0
Sliding Door Installation
Yes, I recommend this pro
$7,800
The crew from WoW were professional, on time, fast, and detailed. They removed, expanded and replaced one window and replaced a window with a sliding door in our home in one day. They were meticulous, paid attention to detail and cleaned up everything before leaving. I will recommend them to anyone who wants replacement windows. From the Sales person, the project manager to the customer service it was excellent service. I am pleased with the quality of their windows and doors.

Kate S.
May 2018
5.0
6+ Room New Window Service
Yes, I recommend this pro

Kevin W.
Apr 2018
5.0
6+ Room New Window Service
Yes, I recommend this pro
Wow did a gret job We had all new windows installed about a month now. We can see, hear and feel the differance. After looking at the big box stores. The quality of windowns from WoW was much better. We did not buy the top grade windowns but think we got a good quality windown. The whole process took 8-10 weeks. We hoped it would have been quicker since we purchaced durning winter months. But install was the best over 20 windows in 1.5 days. Great job overall!!! Like for them to do my doors; next project.

Gail T.
Mar 2018
5.0
6+ Room New Window Service
Yes, I recommend this pro
$12,100
From my initial consultation, scheduling and installation, WOW has been very professional. Greg on the sales team did a thorough demonstration of the product, the office kept me informed of arrival & instructions, and the installers were prompt, efficient and expedient. It was a little more than I expected to pay, but the windows are beautiful. I hope that they live up to expectations for many years.

Ron D.
Feb 2018
5.0
Doors (Exterior) Installation and Replacement
Yes, I recommend this pro
$1,700
Work was performed on time and fulfilled my expectations. The installer was helpful in ensuring my preferences were understood and met.

Crystal B.
Jan 2018
4.0
Doors (Exterior) Installation and Replacement
Yes, I recommend this pro
$4,750
Great Job!!

Jolee R.
Jan 2018
5.0
3-5 New Window Installation
Yes, I recommend this pro
$2,000
Extremely professional and knowledgeable. Prompt to respond. Great experience

Jon R.
Dec 2017
5.0
Yes, I recommend this pro
$3,700
They kept me apprised of progress and scheduling and the professionals who did my install were very nice and very concerning with the quality of their work. Definitely recommend them.

Edward W.
Nov 2017
5.0
Yes, I recommend this pro
$9,000
Appears to be good quality windows from Okra. Lifetime Warranty covers labor and parts if ever needed. Installers did a great job cleaning up after installing 13 replacement windows. So far have been very happy with the purchase and installation!

Kate H.
Oct 2017
5.0
6+ Room New Window Service
Yes, I recommend this pro
$6,000
Everything went so smoothly...from Zach coming to the house for the estimate to the installation team of Oscar and Julio. I couldn't have asked for a better team to have install my windows. They cleaned up after themselves and made sure that I was happy the entire way thru. I highly recommend this company - their prices may be a little higher, but well worth it.
Showing 1-25 of 43

Licensing

Licensed*

Trade License Number

2705101007

Trade License Locale

VA

Trade License Expiration

11/30/2027

State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our Find Licensing Requirements page.

*Contact business to see additional licenses.

FAQ

Windows On Washington, Ltd. is currently rated 4.8 overall out of 5.

Monday: 8:00 AM - 5:00 PM Tuesday: 8:00 AM - 5:00 PM Wednesday: 8:00 AM - 5:00 PM Thursday: 8:00 AM - 5:00 PM Friday: 8:00 AM - 5:00 PM Saturday: Closed Sunday: Closed

Windows On Washington, Ltd. accepts the following forms of payment: CreditCard

Yes, Windows On Washington, Ltd. offers free project estimates.

No, Windows On Washington, Ltd. does not offer eco-friendly accreditations.

No, Windows On Washington, Ltd. does not offer emergency services.

Yes, Windows On Washington, Ltd. offers warranties.