Banner for Window Nation - Maryland & DC

Window Nation - Maryland & DC Reviews 

240
TrustScore 4.5 out of 5

4.4

871 Cromwell Park Drive, 21601 Glen Burnie, MD, US


While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more

To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more

See what reviewers are saying

Rated 5 out of 5 stars

The two-man staff did our 5 windows in one morning with no mess left and a short though comprehensive and clear out-briefing. The manner of the senior partner was professional yet friendly.

Company replied

Rated 5 out of 5 stars

The sales rep was competent and pleasant; the scheduler was proficient and flexible; the installers were excellent and polite. In other words, from start to finish, Window Nation was excellent! I'm... See more

Company replied

Rated 1 out of 5 stars

Scheduled an in-home estimate with Window Nation for 7 PM and they completely no-showed—no call, no text, nothing. Took time out of my evening for this and got zero communication or respect for my tim... See more

Company replied

Rated 4 out of 5 stars

Contractors did good work. They didn't really explain much, just showed up, knocked out the work, and left. They were mostly clean, but I found some trash and construction debris around my property... See more

Company replied


Company details

  1. Window installation service
  2. Construction company
  3. Door supplier
  4. PVC windows supplier
  5. Window supplier

About Window Nation - Maryland & DC

Written by the company

Why Window Nation is the best choice

Written by the company

Energy Efficiency
Tired of high utility bills? Replacing your old windows with our energy-efficient ones could lower your utility bills month after month. Our windows are made with top-quality insulated frames and seals, so you’ll get windows other companies can’t match. You’ll start saving money every month year-round.
Expert Installation
New windows are useless without proper installation. When you choose Window Nation, your new windows are expertly installed for a perfect fit and years of worry-free protection – and installed in 1 day. Our teams are local, so they understand what it takes to ensure your windows can handle the weather in your area.
Styles and Colors
Available styles and colors Whether you have standard-looking windows or a full-custom home, we can replace them. Each of our windows is expertly measured and custom-made for your home – even odd sizes. With over 1,500 styles and colors to choose, you’ll get the windows you want – even if you have an HOA or historic district.
Lifetime Warranty
Your current windows haven’t lasted – how can you be sure new ones will? At Window Nation, we stand behind our windows and doors with a lifetime warranty. That’s because we know we sell the best windows you can buy – and we’re confident they’ll perform and protect your home for decades.

Our Mission

Solve problems by installing solutions.

At Window Nation, we help homeowners reimagine their spaces with premium, energy-efficient windows built for beauty, comfort, and long-term performance. With over one million windows installed and more than 30 markets served nationwide, we’ve earned a reputation for expert craftsmanship and customer-first service. Our story began with a simple goal: to offer homeowners high-quality window solutions tailored to their unique needs. Today, that mission still drives us. We offer one of the largest selections of styles, colors, and materials, all customizable to fit your vision and your budget. Our Exterior Design Consultants work closely with every customer, ensuring a seamless experience from consultation to installation. Backed by industry-leading warranties and thousands of five-star reviews, Window Nation is proud to be a trusted partner for home improvement. We’re also committed to giving back, supporting the communities we serve through local partnerships and initiatives. Whether you’re upgrading for energy efficiency, curb appeal, or peace of mind, Window Nation delivers products you can trust and results you’ll love. Come discover why so many families continue to choose Window Nation, the company where quality, value, and service meet.

Contact info

  • 871 Cromwell Park Drive, 21601, Glen Burnie, MD, United States

  • 410-766-8488
Promotion box for Window Nation - Maryland & DC

Window Nation

Elevating homes every day

4.4

Excellent

TrustScore 4.5 out of 5

240 reviews

5-star
4-star
3-star
2-star
1-star

Asks customers to review

This company invites their customers to review, whether positive or negative

At Trustpilot, it's all about human content. This business can also access our AI-assisted response tool which helps them draft replies.

How this company uses Trustpilot

See how their reviews and ratings are sourced, scored, and moderated.

4.4

All reviews

(240)

3,882 reviews in the last 12 months

Write a review
Companies on Trustpilot aren't allowed to offer incentives or pay to hide reviews. Reviews are the opinions of individual users and not of Trustpilot. Read more

Rated 5 out of 5 stars

Professionals yet friendly


The two-man staff did our 5 windows in one morning with no mess left and a short though comprehensive and clear out-briefing. The manner of the senior partner was professional yet friendly.

17 July 2026
Window Nation - Maryland & DC logo

Reply from Window Nation - Maryland & DC

We're so pleased to hear that our team completed your window installation efficiently and left your home spotless. It's wonderful that you found our senior partner to be both professional and friendly.

Rated 5 out of 5 stars

A Window of Time

The sales rep was competent and pleasant; the scheduler was proficient and flexible; the installers were excellent and polite. In other words, from start to finish, Window Nation was excellent! I'm glad I chose this particular company to replace my windows.

2 July 2026
Window Nation - Maryland & DC logo

Reply from Window Nation - Maryland & DC

We are so glad to hear that your experience with us, from start to finish, was excellent! We appreciate you choosing us for your window replacement.

Rated 2 out of 5 stars

Buyer beware. Dot your Is and cross your Ts with WN. My windows are beautiful and the…

The windows are beautiful and the installation was completed without incident. The installation team failed to remove the stickers/labels from each of the 17 windows, however. And the labels are not easily removed, which means I have a difficult task ahead of me to remove them or to pay someone to remove them.

Communication with WN representatives prior to my HOA approving the project was pretty good. It has been anything but that since then, however. I was promised $100 Visa gift card if I scheduled my consultation to be held within 48 hours of my initial call to the company. I held up my end of the bargain, but WN has yet to issue the gift card to me or even respond to my inquiries about it.

My next-door neighbor had approximately the same number and type of windows installed by WN a few months ago. She paid over $8,000 less than I paid. She pushed back on the original proposed contract price and was offered a much lower price for the same windows. Shame on me, I guess, for not knowing the contract price that I was given was actually negotiable. Also, I do not believe that the “buy four windows, get four windows free” special was applied to my contract. Things moved so quickly with the whole process that I did not realize it at the time of signing my contract. I will never do business with WN again, as they seem to have questionable and deceptive business practices.

7 July 2026
Window Nation - Maryland & DC logo

Reply from Window Nation - Maryland & DC

We appreciate you taking the time to share your detailed feedback with us. We are genuinely concerned to learn about the issues you've encountered, particularly regarding the unremoved window labels and the difficulties you're facing in their removal. We understand how frustrating it must be to have this additional task after an installation.

We also acknowledge your disappointment with the communication post-HOA approval and the unfulfilled gift card promise. We recognize that this has led to a less than ideal experience. Furthermore, we take your concerns about pricing discrepancies and the application of promotional offers very seriously. We are reviewing your project details to understand why these issues occurred and to ensure that our processes are consistently applied and transparent. We are committed to addressing these points and improving our services.

Rated 5 out of 5 stars

Work was done on time

Work was done on time. Installers were professional and showed care for my home and they cleaned up both inside and outside where the windows were installed.

29 June 2026
Window Nation - Maryland & DC logo

Reply from Window Nation - Maryland & DC

We're so glad to hear our team provided professional service and took great care of your home during the installation. Thank you for your wonderful feedback!

Rated 5 out of 5 stars

Everyone from Sam who sold me the…

Everyone from Sam who sold me the windows to the installers were absolutely fantastic. Very professional and honest. The installers cleaned up after they finish. I have recommended Window Nation to both of my neighbors who are looking to get their windows replaced sometime in the future.

11 June 2026
Window Nation - Maryland & DC logo

Reply from Window Nation - Maryland & DC

We are so pleased to hear about your positive experience with our team and the window installation. We appreciate you recommending us to your neighbors!

Rated 3 out of 5 stars

Two years ago I had all my windows and…

Two years ago I had all my windows and sliders replaced by Window Nation. I was very happy with the installation and paid over 17,000. This year I had a tear in the slider screen and was shocked to get a repair quote from them for 342.00. When I said I might price it elsewhere, they told me it would invalidate my entire lifetime warranty. I was SHOCKED and consider that to be lousy customer service. BE WARNED!!

20 May 2026
Unprompted review
Window Nation - Maryland & DC logo

Reply from Window Nation - Maryland & DC

We appreciate you sharing your experience. We are concerned to hear about the screen repair quote and warranty clarification. We want to ensure our policies are clear and fair. We're reviewing this internally to address your feedback.

Rated 5 out of 5 stars

Very knowledgeable and patient

Very knowledgeable and patient. Couldn’t have had a better experience. Thanks!!

24 June 2026
Unprompted review
Window Nation - Maryland & DC logo

Reply from Window Nation - Maryland & DC

We're glad you had such a positive experience! Your kind words mean a lot to us.

Rated 5 out of 5 stars

Fulll house windows and doors

Over all it was good. Had some hiccups but they were resolved right away, The whole process took a year but we did every window and doors in a large 4 bedroom house. They gave us the same crew eveytime which was great. They knew the house and we all worked together very well.

23 July 2025
Window Nation - Maryland & DC logo

Reply from Window Nation - Maryland & DC

We're so glad to hear you had a good experience overall! It's wonderful that our crew worked so well with you. Thank you for your patience during the year-long process.

Rated 1 out of 5 stars

Terrible customer service if you need…

Terrible customer service if you need them! It takes weeks, not days, to get a response and we still haven’t gotten one. Our entry door is broken due to their materials for the second time in four years and I placed a call to have a repair ticket. they promise ‘call backs’ within 5-10 business days from someone just to evaluate the problem over the phone, not even schedule a repair, and nothing for six days so I call back and ask for it to be escalated to which they say they will send an email of ‘high priority’, six days more and no call back. I speak with them today and more of the same promises with the exact same script of words from them. After pressing them to speak directly to a Scheduler TODAY she placed me on hold and said she tried her phone line and got her voicemail so left the scheduler a message describing the urgency of my non functioning door. So after almost two weeks, still nothing from their end, only hard-pressed action after I kept up with the contacting.

6 May 2026
Unprompted review
Window Nation - Maryland & DC logo

Reply from Window Nation - Maryland & DC

We apologize for the unacceptable delay and frustration you've experienced with your door repair. This is not the level of service we aim to provide, and we appreciate you bringing this to our attention. We are looking into the matter to determine how best to move forward, and management will be in touch shortly.

Rated 5 out of 5 stars

Installing my new windows with Window…

Installing my new windows with Window Nation’s has been the most valuable project. I have done at my home.
My home was built in 1983 and this is the first time the windows are being replaced. This has lowered my energy bill and my house does not feel as cold or hot during the changes of seasons. I love Window Nation.

1 December 2025
Window Nation - Maryland & DC logo

Reply from Window Nation - Maryland & DC

We're happy to hear that your window replacement project has been so valuable for your home! It's great to know that you're already seeing benefits with lower energy bills and improved comfort. Thank you for sharing your positive experience.

Rated 1 out of 5 stars

Beware of Window Nation

On March 30th we signed a contract with Window Nation to replace our windows, we knew we had seven days to cancel as specified on the "NOTICE OF CANCELATION". On April 1st we drove to their office located at 871 Cromwell Park Drive, Glen Burnie, Md 21601 signed the "NOTICE OF CANCELATION" and had the manager Shawn William also sign and date the "NOTICE OF CANCELATION". I was told I would have my refund in 10 days. It is now April the 28th and when I called their office they tell me someone will get back to me in two days. I guess I will need to seek legal counsel in order to get my money back.

30 March 2026
Unprompted review
Window Nation - Maryland & DC logo

Reply from Window Nation - Maryland & DC

We regret to hear about the trouble you've experienced with your refund. We appreciate you bringing this to our attention. Please be assured that we are looking into this matter, and someone will be in contact with you soon to provide an update.

Rated 1 out of 5 stars

No Respect For My Time!

Scheduled an in-home estimate with Window Nation for 7 PM and they completely no-showed—no call, no text, nothing. Took time out of my evening for this and got zero communication or respect for my time. If this is how they handle appointments, it doesn’t give much confidence in how they handle actual projects. Really disappointing first impression.

23 April 2026
Unprompted review
Window Nation - Maryland & DC logo

Reply from Window Nation - Maryland & DC

We sincerely apologize that we missed your estimate appointment. We regret the lack of communication and the inconvenience this caused. We value your time and will review our scheduling process to prevent this from happening again. Thank you for your feedback.

Rated 2 out of 5 stars

Significant Disappointment

Last year, my husband and I bit the bullet and invested in new windows by the Window Nation. The process began in spring, and the windows were done and installed by July. The sales rep was quick efficient and to the point during his presentation. We paid over $21,000 for 12 windows. And we’re told that these windows were the top of the line windows, the best windows that they sell. The install day was quick and efficient. The men really worked hard but after the install was complete we had two issues with our windows that we immediately noticed, one in our kitchen which had an air leak and was hazy at the time of install and another window in our basement that wouldn’t open or shut correctly. A tech came out to inspect the issues and couldn’t believe that they would install a hazy window, he said they will replace that. The basement window size was off by just a little and he had a new one made, and that one was replaced as well. Then moving into December as the cold months were starting to hit, we noticed major cold air drafts coming through the bedrooms. Are electric/gas bill had drastically gone up. The bedrooms were so cold continuously and we didn’t understand why our rooms were so cold when new windows had been installed. Come to find out that these slider windows that were installed in the bedrooms, have a drainage area for water to escape, and there is a major draft of cold air that comes in through this window design. For being the top of the line window, you would expect to have a better design. We had both a tech from window, Nation and a tech from the window manufacturer come and check the windows. They all said this was the design of the window and nothing could be done, but that we could put a blanket or towel there for when it gets cold to block the cold air from coming in. This isn’t the response you want to hear when you just spent so much money on brand new windows. Our 25 year old slider windows that we had previously didn’t have any issues with cold drafts coming in. We simply wanted new windows to help our house be more energy efficient and these new windows let more air in. To invest in a product and expect the best, we are highly disappointed. Due to the numerous issues we are extremely dissatisfied with the quality and outcome of these windows. Given that there is no viable solution to correct these air leak issues, our disappointment is significant. Knowing now that nothing can be done to fix our windows is incredibly frustrating. We truly wish we had been given this information upfront, as we would not have moved forward with the purchase.

2 March 2026
Unprompted review
Window Nation - Maryland & DC logo

Reply from Window Nation - Maryland & DC

We appreciate you sharing your experience. It's regrettable to hear about the issues with the window installation and the drafts you're experiencing, especially after investing in what you were told were top-of-the-line windows. We'll review your feedback with our team to see how we can improve our products and communication about their design.

Rated 3 out of 5 stars

Just okay

When we first got our windows installed, we recommended Window Nation all the time. The windows are beautiful, super functional and smooth, and install went well. However, we have experienced a number of issues with our windows and screens, and the process to get them resolved has been inconvenient and cumbersome. We do have a lifetime warranty, which they have honored, but the process is extremely difficult and slow. We also had an issue with a rip in one of our screens. We were told by the salesman that they also had a lifetime warranty, but were then told by Window Nation months later that we needed to register our screens within 30 days in order to qualify for the warranty, the instructions of which were never given to us. I don’t appreciate the duplicitous and overly complex nature of the company and issue resolution. They were absolutely invested in getting the sale, but not in customer satisfaction.

12 February 2026
Window Nation - Maryland & DC logo

Reply from Window Nation - Maryland & DC

We appreciate your initial recommendation and are sorry to hear about the issues and inconvenience you've experienced with resolving them. We'll review your feedback regarding the screen warranty and the overall resolution process to improve our customer experience. Thank you for your time.

Rated 5 out of 5 stars

Tech was friendly

Tech was friendly, courteous & professional!

30 January 2026
Window Nation - Maryland & DC logo

Reply from Window Nation - Maryland & DC

We are happy to hear that our technician was friendly, courteous, and professional! Thank you for your positive feedback.

Rated 5 out of 5 stars

Your rep checked my problem and…

Your rep checked my problem and resolved.

Thanks for your attention to my issue.

2 February 2026
Window Nation - Maryland & DC logo

Reply from Window Nation - Maryland & DC

We're happy to hear that the issue was resolved! We appreciate you bringing it to our attention and for your feedback.

Rated 3 out of 5 stars

Installation Delay

I signed the initial contract in September, but the windows were not ready for installation until late January. My main reason for ordering the windows in September was to have them installed before the winter set in. Once scheduled, the installers did a very nice job. No complaints on the workmanship or installation.

3 February 2026
Window Nation - Maryland & DC logo

Reply from Window Nation - Maryland & DC

We regret the delay in getting your windows installed before winter. We're glad the installation met your expectations. We appreciate your feedback and will review our scheduling process.

Rated 5 out of 5 stars

Excellent work and professional

I was informed every step of the way
ETA to install
ETA when the windows arrived after making

2 February 2026
Window Nation - Maryland & DC logo

Reply from Window Nation - Maryland & DC

We're happy to hear that you were informed during the process. We appreciate you taking the time to share your experience with us.

Rated 1 out of 5 stars

The customer service has been horrible…

The customer service has been horrible at responding to and communicating with me. My issue is simply one piece of exterior window frame cladding fell off. It took over two weeks from my first contact for someone to come out. He didn't have a ladder tall enough (although I had said it was on the third floor), but told me it was like a five minute fix and the service people would call to set up an appointment. I have YET to have anyone contact me about setting up an appointment. The central Window Nation number has called me a couple times saying they would have the regional service people contact me about coming out, but I have yet to hear from them. In the meantime we have had a heavy downpour and now a snowstorm. Through this, my window frame remains exposed and unprotected. I understand that the holidays and a major snow storm have occurred during this timeframe, yet to not have ANYONE even try to set up an appointment with me is frustrating. Especially since I HAD to pay a $150 service fee for anyone to even come out. And I had to pay that in advance. At this point I feel scammed out of $150 and the one guy took the actual window frame piece with him. I just want someone to come out and put the piece back up. I don't even need a set appointment and I don't need to be home. In fact, I am not really in the mood to talk to anyone from Window Nation anymore because I probably won't be polite.

12 January 2026
Window Nation - Maryland & DC logo

Reply from Window Nation - Maryland & DC

We appreciate you bringing this to our attention. We are very sorry to hear about the issues you've experienced with our service and communication regarding your window frame. The delay in addressing the problem, especially with the weather exposure, is not the service we aim to provide. We'll investigate why the follow-up appointment wasn't scheduled and work to prevent similar situations.

The Trustpilot Experience

Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.

We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.

Learn about Trustpilot’s review process.

Here are 8 tips for writing great reviews.

Verification can help ensure real people are writing the reviews you read on Trustpilot.

Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.

Take a closer look