I would totally recommend this window company. I have a big house with about 40 windows that all…read morehave sail failure and need replacement. Because it is a big project, I actually contacted at least 7-8 companies for quotes and ended up using American windows because of their best price and the best windows brand and glass package. Energy efficiency was my priority so I want the best price and best windows which seems to be very hard. But Jay (the project manager) made sure I got what I wanted. The team went out to install 40 windows and they absolutely did an excellent job. They were super friendly and professional. I'm very neat and detailed so they made sure all windows are cleaned and properly installed. After installing, they vacuumed and even mopped the floor for me. I'm very pleased with their work !

I had American Windows replace several windows and a sliding glass door. They were half the cost…read moreof another company. In my original order in 2019, they showed up on time and completed the work in a timely manner. I had an issue with opening the screen door on the sliding glass door and called them. They were responsive and sent Paul out to repair the issue under warranty. He showed up early, found the issue and repaired it. This company is the easiest and most honest I've ever used. I highly recommend them.

Fantastic window replacement experience!…read more Potomac Window and Doors 703 963 6296 Local family owned company. Owner provided no pressure estimate. Owner communicated after the estimate, scheduled the work and participated in the installation. The quality and price can NOT be beat. Over the last couple years I've had every major window company provide me an estimate. Every company gave a high pressure sales presentation with an estimate that was insanely high. Don't waste your time with the companies that advertise constant sales, its a scam! Call Mike at Potomac Windows and Doors, I'm confident you'll be as happy as I am that you did.

We had three windows replaced. This father/son team did superb work and we are ecstatic with the…read moreoutcome! Would highly recommend.

I had a really great experience with ZEN Windows from start to finish. What I liked right away was…read morehow casual and easy everything felt, no pushy sales tactics, just straightforward and friendly communication. They were super responsive anytime I reached out with questions. Emails and calls were returned quickly, which made the whole process feel smooth and stress-free. They also got someone out pretty fast to measure the windows, so things kept moving without delays. I ordered 10 windows for my townhouse at the end of February, and everything stayed on track. The windows came in April, and installation was set up for the very next week, exactly how they said it would go. The install team (two guys, led by the amazing Mark) was awesome, very professional, worked efficiently, and took the time to protect my floors and furniture. They cleaned up as they went, which I definitely appreciated. Scott, the owner, stayed in touch throughout the day of installation and honestly throughout the whole process. I had a couple of window and sash issues but Scott was amazing and the kind of communication and follow-through really stood out. Overall, I couldn't be happier with the experience. They did exactly what they said they would do, and the customer service was top-notch. I'd definitely recommend ZEN Windows to anyone. It really was a calm, "ZEN-like" experience. Haha!!

What a great and easy experience it was getting new windows from the Zen Windows folks in…read moreGaithersburg ! The team has been together forever and it showed. From the original meeting to the completion of project was seamless and flawless. After dealing with several different companies they're pricing quality of product and laid back professional approach was a appreciated. I would highly recommend Zen Windows.

I purchased 11 windows (my whole house) from Window Nation in June 2025. While the salesman seemed…read moreknowledgeable, there are some issues of which I am not satisfied and based on these, I would not recommend Window Nation. First, the energy efficiency of the product is lacking. The salesman, using a sample window and a little device, noted the temperature on one side of the window using the device and then noted the temperature on the other side of the window without the device. A marked difference. However, this winter during a cold spell, my home was quite cold. I had to increase the heating system thermostat temperature to make the home warmer. I put my hand on the inside of several of the windows and surprise, the cold was coming through the window. I had to purchase new thermal drapes to put on windows to try and keep cold out. My utility bills were through the roof this winter so that little gadget was useless. Secondly, when closing an open window, the upper pane slides down with the lower pane and you have to reach up the outside of the windows to push the upper section back into place to be able to lock the window. Lastly, I opted for the 18 month promotion. The service company Window Nation uses is named "Service Finance Company, LLC". THEY ARE A WASTE!!!!!!!! All of their Customer Service Representatives are offshore and when you call, they have no clue how to solve your billing issue. I pay my bills online and since purchasing the windows, I have only had ONE (1) month where I did not have a problem making the payment. All in all, I would suggest that you look elsewhere for windows and not window nation. Oh, and one more item, I received a card in the mail noting a promotion, but 2 get 2 free. Well, it was bogus as the salesman noted that this promotion does not include installation.

They made me see all their information and house information after all that they then hung up…read more.. the worst customer service.

Profix was very responsive and came to our house within two days of contacting them and did an…read moreawesome job building and installing our custom patio door. They sent photos even though I wasn't home and finished the job quickly and exactly as I requested. They also gave me a great price and I would highly recommend them again! Thank you!

From the owner: Invest in the safety and elegance of professional-grade enclosure repairs coupled with timeless…read moredoorway installations, meticulously carried out by specialists.

I was cleaning windows on a Saturday and one of the panes in a double paned window completely…read moreshattered. We were adopting a cat on the upcoming Monday, and because of renovations we were having done in our basement, the room with the shattered window was one of the main rooms we had anticipated the cat to be in. I called on Monday morning, and District Capitol Glass came out the same day and replaced the window, all before we brought the cat home. The repair took a half hour and the window looks great.

District Capital Glass was extremely easy to work with when I had them replace a single glass pane…read morein one of my windows. They were very communicative throughout the process and efficient when completing the work, all of which was at a great price.

We had doors, a window and gable siding replaced. Fredy was hands down the best business owner to…read morework with. He is responsive, accommodating, courteous and flexible. He had different crews specialized in each project, one for windows/doors and another for the siding. We had specific ideas and designs that we wanted. Fredy listened and was willing to accommodate and provide us with options. He was never trying to push products or ideas on us and we never felt pressured on anything. We loved the doors/windows crew. They were on time, respectful, friendly and they did a great job. There were a couple of hiccups with the siding, but Fredy came out every day and we came up with fixes. We've worked with numerous contractors across various specialties. There was always some sort of frustration or argument with each project because the crew cuts corners and/or the owner is unwilling to listen to what we wanted. Fredy is the only contractor/business owner who we feel truly wants to listen and make his clients happy. He is happy to work with you to get to a final project that you are happy with without getting defensive and letting pride get in the way. On top of that pricing was reasonable. He is not the cheapest but he is nowhere near the most expensive. Highly recommend Fredy and Designer Windows and Siding.

Freddy's team does great work! Good customer service and communication throughout, which…read moreunfortunately is not that common in the home improvement space. The team at Designer Windows & Siding was professional from the word go. Would highly recommend!

Okay from the outside it looks mad sketch but the guy who owns the store or house knows what he's…read moretalking about and understands how to help based off the stage of growth your plants are in.

Great source for hydroponic supplies. No need to pay the high cost of supplies and astronomical…read moreshipping charges from the internet. Give Joe a call for expert gardening advice or to know whether he has your desired product(s) available. It's not really a "store" in the sense you browse until you decide on a purchase. Call in advance and he will give you pricing then have the item(s) available when you arrive. HINT: Familiarize yourself with directions and note the posted location photos before heading out. Bring cash Only