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 !

Amazing experience from start to finish! We recently had American Windows replace all the windows…read morein our house and it could not have had a better experience from end to end. Ben was our point of contact throughout the entire project. He came out to take the initial measurements, talk through the project, and generate a quote. It was a complete zero-pressure experience. After receiving the quote I made an appointment to visit the showroom (though Ben also offered to bring some window samples to the house). We really liked the windows (Sunrise Restorations) and moved forward with the project. The installation went flawless! I'm a bit of a perfectionist and usually have to stop myself from nitpicking on small little flaws from general contractors, but American Windows did such a stellar job I couldn't find a single flaw in their work. I'm very happy I went with them!

I needed new windows and new sliding glass doors. The previous owners of our appartment had put in…read morethe cheapest possible units with the cheapest possible labor. With regards to the heating of our home, the windows were no better than screens. I reached out, looking for windows and installers. I had a few people come in and estimate the job. None of them impressed me until Greg from Windows on Washington came over. He walked me through several options and explained how the windows they used were manufactured and why. Windows on Washington got the job. My windows and my doors were being manufactured. So they sent out a wonderful gentleman to get the final accurate measurements. Great guy. After that, communication was wonderful as were were assessed of the stage we were in. This included when we got the email and calls explaining that, since we were on a higher floor, they needed to bring in some equipment to lift the new doors up to our balcony. No surprises. Installation day was amazing as Joon and his team came in, got everything into place, and cleaned up the areas to better than when they got here. Joon then went over the features on our windows and even explained how we get to and clean the outsides of the glass. Wonderful man and amazing team. Since then, we have gotten copies of our warranty and the guarantees. And the company has reached out twice to ask if we have any questions and to ensure that we are happy with our windows. We are. We are very happy with our windows. Almost as happy as we are with the people who got them into our home.

I needed an insulated picture window replacement. I believe we used that business a few years ago…read morewhen we replaced uninsulated picture windows on the front side of the house. The sales representative did not believe that WW did that kind of thing anymore, but had a very difficult time understanding the kind of window I was describing. I spoke with that person 3 times to try to help him understand this is not a typical window, but one that is fixed in place. To no avail, I chose another company. I would give WW a 2 star rating.

Had a great experience with superior Glass. They arrived when they said they would and did an…read moreexcellent job replacing my windows. Great customer service and reasonable pricing. Definitely will call them again for future jobs!

Bob Duncan is extremely professional and does a fabulous job installing glass windowpanes. He has…read moreinstalled several in my house and I would never hesitate to call Bob if I needed to have the shower enclosure in our bathroom replaced. Great staff, amazing work and really a great value. All work custom! Thank you, Bob!

Dave and team are amazing...they did all the windows on my house (wich is quite large) for a damn…read moregood price, and the work was great!..dave ansewered all my questions, and even was nice enough to help me change my car tire when i got a flat at my house..great buisness great people!

Friendly sales and service personnel. Reasonable price quotes for quality windows. Good…read morecommunication every step of the process. We really couldn't be happier. Since we have quite a few windows, it was important to us that we were able to beak the job into phases. We were able to work out a plan that met our budget. They were also able to work with my tight installation schedule.

We had a new roof put on our home. They came and gave us an estimate quickly and the price could…read morenot be beat. On the day of install the team was very nice and worked hard. It took them three days to do our roof. It is a large challenging roof. Giving five stars because of the finished job, however they did not protect our yard and we had a huge mess the first day that was not picked up until the next morning. I believe it's because they were short one person the first day. Otherwise a great job and fair priced.

From the owner: We offer quality work at affordable prices and over 25 years of experience. We are family owned and…read moreoperated. We take great pride in make sure all of you request are exceeded.

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.

We had one window replaced as the rest of our windows have already been replaced. The salesman was…read moregreat, the installer took his time and did a very good job and the experience with this company was very positive. They may be a little higher price than other independents but I do think you get what you pay for in this line of work. You want to be sure the window installation is done properly otherwise you will have problems down the road. I would highly recommend this company. I do think that if you had any kind of issues with your installation, this company would definitely do whatever they had to make it right.

We had 51 windows replaced up on Pantops. Excellent people, excellent price, excellent work. The…read moreinstallers never stop working from the minute they get there until they are finished for the day. Windows look amazing. Highly recommend. Finished the job a day sooner than expected.

Ordered window and front door replacement Oct 4th. Once you sign contracts (1 for window 1 for…read moredoor) you are left pretty much in the dark. Guy came couple weeks later to measure--from date of measure it is supposed to be 4 to 6 weeks for fabrication and installation. My door is smaller than standard and needed to be fabricated to spec. The six week mark I had to call for status--found out window was ready but supplier of door hadn't even started making it. Was given Dec 18th date. Week of 18th again reached out to find that WW still didn't receive the door so can't schedule install and likely will now be January--and oh by the way, there are four customers ahead of me. If I had gone with Lowe's this would already be done. I have zero faith in Window World to do a good job with install since they lack adequate oversight and control over their vendors and schedule. Even though both items are separate contracts but "one job" even though the window is ready, WW has to wait for the door. If this company appeals to you, nail down dates and don't just accept their terms cause now I am at their mercy. I cannot cancel and have already prepaid half.

Window world's installation crew left my house a couple of hours ago and I'm feeling nothing but…read moreregret that we hired them. The windows have rough cuts and wonky corners. I found bits of metal and plastic and broken glass and trash all over my yard and a beer bottle behind my shrubs. Just awful. Maybe even lawsuit awful. The only competent person we worked with at WW was the sales guy. Next day: the more I look, the more awful it gets. Gaps in the exterior wrap, super messy caulking. This is a very sloppy installation. It looks like a bunch of drunks did it - perhaps young men who were drinking HEINEKEN all afternoon. Following week WINDOW WORLD SENT THE SAME GUYS BACK TO FIX IT!?!? They showed up unexpected!!!??? Oh hell no. I sent them away. - This was after we told them IN WRITING that the 9/2 crew was not welcome back. Go drink Heinekens at a bar, not my house. I mean really!!!

We got a great deal on our new siding and ROI did a fantastic job! It was time to replace our super…read moreold siding and the sales process was fair and we did not feel pressured at all. We got a great deal and I recommend using ROI for your next project. The construction team was great and even though the project took a little longer then expected it was still done promptly. There was a slight delay because they found old asbestos siding and that needed to be removed. Our project coordinator Brooke was very nice and helped everything run smoothly.

Great company, great service. Responded very quickly, came within a day and did excellent high…read morequality exterior renovations. Very highly recommend.

I cannot even begin to express how strongly I recommend Mark. His craftsmanship was impeccable,…read moreprobably one of the most pleasant people I've ever been around, and his prices are beyond fair.

From the owner: I offer great quality with fair prices. I have been in the construction field since I was a…read moreteenager. I have 25+ year experience in multiple trades and will give you the best quality. Call Today to Schedule Your Next Project!!