Window Nation
5th year as a Best Pick
certified company
A
rated
Based on 583 reviews
Our Certification Process
Best Pick Guarantee
Verified License(s)
Verified General Liability Ins.
Verified Workers' Comp
5th year as a Best Pick Call
"We offer premium windows, doors, and siding specifically designed for the DC climate. All products are installed by highly skilled professionals and are covered by one of the most comprehensive warranties in the industry. We're best known for the attention we pay to every detail."

Harley Magden | President & Co-owner
Company Information
Services Offered
Window Nation installs custom vinyl, wood, and fiberglass windows and doors as well as vinyl and fiber cement siding for residents of Northern Virginia, Maryland, DC, Northern Delaware, Pennsylvania, and New Jersey.
Services Not Offered
The company does not install glass block or repair products that it did not install.
Minimum Job
A three-window minimum is required.
Warranty
Window Nation offers a 100 percent customer satisfaction guarantee.
Company History
Window Nation is owned by brothers Harley and Aaron Magden, third-generation window experts. The company states that it has installed over 275,000 windows in 55,000 homes.
Distinctions
The company is an EPA Lead-Safe Certified Firm and an ENERGY STAR Partner. Window Nation was ranked 6th on Remodeling's 2016 list of the largest replacement contractors in the US.
Licenses
MHIC #124358
Areas Served
Montgomery, Howard, Anne Arundel, Prince George's
A selection of 583 homeowner reviews:
“The installation quality was outstanding. They installed 17 windows. They had a very efficient, clean, and high-quality process. The windows are beautiful and have drastically reduced the noise. We can no longer hear most of the traffic along the road out front. We highly recommend Window Nation—A.”
“After talking with several companies, I picked Window Nation for their patience to help me understand the process and explain each step and their awesome professionalism and expertise. I would highly recommend them without reservations.”
“The team was extremely efficient. We are truly impressed with the work done on our home. Everyone at Window Nation is a credit to the business. The windows are great—A+.”
“They can come work in our home anytime. These are workers you can depend on for excellent service.”
“We were very pleased with Window Nation. They exceeded all of our expectations.”
“Window Nation has done almost every window in outlet home. Their sales team was courteous and made sure that we were getting the right product for our needs. The installation crews were always on time or early. They worked hard and fast. The work was of the highest quality and everything looks and works as advertised.”
“Great job, very professional.”
“Good quality, good service.”
“So far we are very happy with the windows installed. Looking forward to more comfort and less electricity use.”
“They did a great job and I would recommend their product. They came and installed 49 different types of windows throughout the house. They installed casement, half moon, small and big, and regular windows. The only problem I had was they did not get the glue off the stickers of new windows. I am still trying to get that off. I would recommend they clean the sticker part off before installing. Other than that I would highly recommend them. Thanks WN good job.”
“Very nice windows. Crew did good work. No complaints.”
“Great people to do business with, have used them for three project's and have referred them to friends and neighbors.”
“Great experience and tall, new windows are great.”
“Dave Harrison was my window consultant. His expertise in knowing your product and his attitude in the overall presentation was excellent. Kudos to Dave Harrison.”
“Very pleased with all aspects of window nation's job from start to finish. Thank you.”
“The Customer Service and the installation team is outstanding. The team was quick and cleaned up their debris as they went. They were cautious of my flooring and didn't track dirt everywhere. They demonstrated the windows and their many functions before leaving the job site.”
“We were very pleased with the Windows Nation experience from start to finish. Our sales person was very knowledgeable but not pushy. He gave us options to fit our budget. The windows were installed on time, and they were installed in half a day. They cleaned up all excess material. I can't believe the difference the windows make in the house.”
“Window Nation did a great job. They were especially helpful taking blinds down (I thought my installation was the following week and was not prepared).”
“I just recently had 4 windows installed and was very pleased with the professionalism of staff, workmanship and quality of material used. I would recommend this company to my family and friends.”
“The windows installer team showed up within the window, and they were very professional, courteous and very knowledgeable. The windows were installed and the door had to be installed about 10 days later, as it did not come in when the windows did. They then showed up to install the door well within the window time frame, and again they were excellent. This time though they had to put floor covering down, as new carpeting was installed between the time the windows were installed and when the door was scheduled. They cleaned up and took care not to damage the new carpet.”
“From start to finish Window Nation exceeded my expectations. All my dealings with them from sales to installation were professional and courteous and the work was performed even faster than I anticipated. Quality work and a quality product.”
“I just purchased the windows, they have not been installed yet. The sales presentation was positive.”
“They did a great job.”
“I preferred them over another company that I used for some windows previously.”
“Initially, I thought that Window Nation's sales tactics were a bit too pushy, but they followed through on their commitment to match a lower estimate from a competitor, were very responsive to my questions, and seemed to have a lot of expertise. In the end, I was very glad that I chose them. My neighbor went with a competitor and had a bad experience (including a leaky window). Meanwhile, I had a fantastic experience. The installation was done very quickly but also very well. My new windows look great and work great. I am very pleased.”
“Window Nation was professional, punctual, efficient and a great value. Two of the windows they installed were manufactured with crooked grids—ideally they would have caught that before coming and installing them—but they sent an inspector out the very next day and we had our replacements in a little over a week. That's customer service.”
“Happy with the installation and the product.”
“We are extremely happy.”
“It was a very pleasant experience from the first visit with Tom to the complete installation.”
“Customer service good. Contractor arrival good within time frame. Work is steady & quick. Quality of work good with small issues handled quickly. Cleanup good. I would recommend them for window service.”
“I was not happy with the installer for the job that he has done. But when I call Window Nation to present my concern, they have someone come to my house right away to look at the work and make it right. I definitely recommend Window Nation to everyone because they will do everything to make all customers happy.”
“They are very friendly and do amazing work. I had all 10 of my windows done plus my front door.”
“The installers were great- quick, clean, and they helped fix a problem that I didn't anticipate. The ordering process wasn't reassuring because I never received any update about the status of my order or the windows unless I initiated it. Just a quick 'Your windows should be ready in 4-6 weeks' or 'We should have your windows in next week to schedule the install' would have been nice.”
“Was very impressed with the quality and cleanliness of the installation. In all, we had 16 windows installed and the guys showed up at 8:10 and were set up and ready to go by 8:30. By noon the windows were initially installed and then they worked together to caulk and seal the entire window surroundings. By 4:30, the entire yard and house had been cleaned up from debris and dust. WE are very pleased with our windows and how they look. Thank you.”
“The entire team was helpful, courteous and prompt. We are very pleased with the quality of the product and the installation and would recommend them to anyone looking to have new windows installed.”
“Very happy to have done business with Window Nation.”
“Very happy with the way my windows with how they were installed and how they look.”
“Window Nation replaced the windows and a sliding glass door in our town home. We are very happy with everything. The sales rep was knowledgeable and allowed us to make the decision that was best for us. The follow up window measurement was timely. The window and door installation was done within a month of our first meeting.”
“Their high level of customer service made the experience positive. I liked the continued follow-up and the clear, concise descriptions of what was going to go on at our property and how the whole process was going to go. They were very clear about that. They also stuck to their promised time frame and everything. They installed a few windows for me, and the job took them less than a day. They came after I went to work, and they were gone before I came back. I chose them because I was satisfied when they came to do the free consultation. I would give them an A+ rating.”
“The work went OK. There were no problems, and it was good, quality work. It was done well. They just installed one window. I found Window Nation when our neighbor recommended them. I think it was excellent work, and I would give them an A rating.”
“I liked their speed and the quality of their workmanship. They got 16 windows done in one day; I was pretty impressed by that. They did a good job cleaning up after themselves—that's what made the experience so positive. I chose them over another company because of the professionalism of the salesman who came by and because of the presentation. I would give them an A rating.”
“Everything made the experience positive, especially the installation crew. They were so nice and so professional about everything. They installed 19 windows for me. I chose them because I needed it done right away. Window Nation is A+.”
“Window Nation did windows for most of the house, and they did a great job with the product and the installation. I heard about them through a friend. I'd say they earned an A.”
“They did OK. They installed windows throughout the whole house except for the bay window. They did a good job from what I could tell, but we haven't had a really bad storm. The windows look nice, and they operate nicely. I like the way they tilt—they're very nice windows, and I'm happy with them. I would give them an A rating for now.”
“Window Nation had great service. Everybody was nice, it was done on time, and it was awesome. They did window installations for me for the whole house, and I'd give them an A rating—it was excellent.”
“This was the second time we've used Window Nation. We did thirteen windows upstairs. That worked out so well that we did the final six windows in the home. Everything was terrific—they were right on time, and they had good quality and good follow-up. They're an A+ company.”
“It went smoothly, and they did a fantastic job. A bay window needed to be replaced, and they put two windows in. They get an A because they were very good.”
“Everything went well, and they were neat. They installed windows, and I would give them the highest grade—A+.”
“From start to finish, Window Nation did everything that they said they would do. The presentation—everything—was excellent. I chose them because of their presentation and everything that came with the products. I'd grade them an A.”
“I'd say Window Nation is an A+ company.”
“The salesman and the installers were professional. They cleaned up, and they did a great job. I would rate them as an A+.”
“They were a little more accurate about the information they gave me, as opposed to the other companies I had gone to for an estimate. They were on target with the start date, and the lady inside the storeroom timed it a little better than the other local place that I went to. I'd already tried another window place, but I just got a better vibe when I went to Window Nation. They were really pleasant; so was the lady inside the office. They get an A grade from me.”
“Window Nation was understandable and clear. My friend referred them. I'd give them an A rating.”
“I liked the professionalism of the team that came in. The salesman was honest and respectful. He didn't try to intimidate us, and he didn't try any slick tactics—he was just honest. I thought he had a good product, and he believed in it. I would give them an A.”
“Window Nation was professional. They were there to do everything they said they were going to do on time. They deserve an A.”
“I had windows installed in my whole house by Window Nation, and I was very impressed with their work. They did an excellent job. I'd give them an A+.”
“Window Nation did our windows, and they'll be doing the door, too. I liked the interaction, their timeliness, and the service all the way from the sale to the actual labor. The workers were fast, informative, and thorough. They're A+.”
“They knew what they were doing. They were really professional, and the product turned out really nice. Window Nation is definitely an A+ business.”
“We had a very positive experience with Window Nation from start to finish. The salesman was very informative, and the whole process was quick, easy, and painless. It was great.”
“I liked that there weren't too many phone calls. I would rate Window Nation as an A-.”
“Everything was wonderful. They replaced windows, and the quality of the work was great. The technicians were excellent—top-notch. They finished the work in a timely manner. I would use them again. I'd give them an A+.”
“Window Nation did an awesome job. I mean, they came in and did exactly what they said they were going to do, and it worked out perfect. They replaced all the windows in my house and did a good job. Everything's fine—I haven't had any problems. The technicians were hard workers. They finished the work in a reasonable amount of time. They cleaned everything up, so I didn't have anything left. I'd rate them an A+.”
“Window Nation installed windows, and the quality of the work was extremely good. We bought a fixer-upper, and the best thing about the house is the windows they installed. I would definitely use them again. I don't care who purchased your house, these are the guys that need to work on it. They deserve an A+.”
“They installed three windows and four doors, and I think the work was excellent. It was my first time using them, and it was a good experience because they did high-quality work. I'd grade them an A+.”
“The windows are first-class. They installed windows throughout the entire house. They did the entire job in one day, and this is not a small house. They did perfect cleanup—it was immaculate. When I came home from work, my wife said, 'Did you see the new windows?' I wouldn't have even noticed.”
“It was a very good experience. They installed new double-hung windows, doors, and a sliding glass door. Everything turned out perfect. It was excellent work. They showed me how to work the double-hung windows. They cleaned up afterward. I'd give them an A+.”
“Window Nation did a great job. I was very pleased with the whole thing. Actually, I had seen that they were rated as one of the window companies that had high ratings in Best Pick Reports. This was my first time using them, and I had a positive experience. They replaced thirty windows over two days. It happened to be a two-day job, so they finished on time. The cleanup was pretty good. If I needed windows in the future, I would use them. I'd rate them an A+.”
“I've used them twice, and both times were excellent. They did my front door and all of my windows, and they finished in a timely fashion. The customer service was excellent. I would use them again in the future. I would grade them an A+.”
“Window Nation did a very good job, and I was very pleased. They were completely punctual and very professional. They installed new windows throughout my house. The quality of the work was excellent. They were recommended to me by a contractor I had doing other work in my house. I would use them again. They're an A+.”
“We got all new windows and siding put up. They did excellent work, and the customer service and cleanup were great. This was my only time using them, but I would use them again in the future. I would rate them A+.”
“It was a very good experience. The quality of the work was excellent—it was A1. The workers were very professional. They cleaned up behind themselves, something that I thought was appealing because usually workers come out and leave their trail. They installed the windows. Before they were complete, they left a window out and had to come back the next day and install it because they forgot it. I'd tell others that Window Nation would be worth looking into. They do what they say they're going to do. I give them an A+ with no complaints.”
“Window Nation was totally phenomenal. My experience was extremely positive. We had twenty-three windows and two sets of French doors replaced. I was extremely impressed with the time frame because they did it in one day. I had expected they would only do half at a time because this is work intensive and we had triple-paned glass installed. The cleanup was great—they swept, vacuumed, dusted, and everything. I have recommended them to two other people already. I would rate them an A+.”
“They replaced sixteen double-hung windows and two doors. They showed me how to work my new windows. The cleanup was perfect. They deserve an A+.”
“Window Nation replaced some windows for me. The salespeople are excellent. They gave us a demonstration and gave us plenty of choices on weather resistance and whatever. They helped set up the financing. They were just very, very considerate and patient. I'd grade them an A. The work was done very well and quickly.”
“They started the work on time and completed the work on schedule. The cleanup was fantastic—when I came home, I wouldn't have known that somebody was in my house. They respected my home. I would give Window Nation an A.”
“It was my first time using Window Nation, and I had a positive experience. They replaced all of our windows. The workers did a very good job—they did it efficiently and effectively. I thought their work was very high quality. I'd give it an A.”
“Window Nation did some work for me. They were prompt. They seemed to know what they were doing, and they cleaned up well after themselves. They came out to install replacement windows. We felt the quality of the work was very high. They are an A.”
“I think it was last year when they installed my windows. I had a positive experience, and the windows made my experience positive. That was my first time using them, and I was satisfied. Everything's smooth. It's perfect. I would give them an A.”
“We had a very wonderful experience with Window Nation. We're very happy with the quality of the windows and sliding glass doors. The people we dealt with were wonderful, and they didn't think any of my questions were stupid, so I would give them an A. The only complication was that we had a very narrow window in our guest room, and for some reason, they did all the other windows and doors but did that window later. But they came and installed that, and that was fine, and I have to say they were very responsive to that, so I'd have to give them an A.”
“We were happy with what Window Nation did for us. They installed windows all the way around in our town house. The quality of the work was great. I'd rate them an A+. I told my neighbors next door that they did a good job.”
“Window Nation was great. Their attention to detail and responsiveness to our needs stood out. They replaced all the windows in our home—probably close to 20. It was my first time using them. They get an A+.”
“They installed windows for my entire house. The workers were very courteous, and the cleanup was very good—they didn't leave a mess. The quality of work was very good. Everything's held up fine. I would use them again. It's an A+.”
“I used them for my mother's house, and I liked the quality of their work on the windows. The workers were real friendly. Give them an A+.”
“They installed the windows when they said they would and cleaned up when they finished. It was fine. I would give them an A+.”
“They replaced 22 windows, and it went pretty well. It was a two-day job, and I thought their work was timely. It was my first time using them, and I would use them again if I needed windows. I'd grade them an A+.”
“Two technicians came out to help me replace seventeen windows, and I am so pleased with the quality of the work. It was my first time using Window Nation, and it was a good experience. They're an A+.”
“I had a positive experience. I was in the market for windows, and they were one of the options. I was satisfied, and there were no issues. I would rate them an A+.”
“Window Nation is great. Four or five of their workers replaced my windows. It was my second time using them, and it was a positive experience. The guy was great—he's very on his game. He knows what he's doing, and I don't have any complaints against him. It's an A+.”
“We had a very good experience, and I was satisfied with their quality of work. They installed some doors and a bunch of windows. The technicians were what I expected. I would give them an A+.”
“They were very professional, and they did a great job replacing all my windows. I was quite satisfied with the work. The people came around to check it out afterward, and they did exactly what they said they would do. They'd be an A+.”
“They were on time, and they cleaned up after themselves well. They replaced all the windows in my home, and it was a good experience. I'd rate them an A+.”
“Everything was just very professionally done. They were here on time—when they said they were going to be—and the guys were very courteous. They got in here, did the job, worked through it, and cleaned up after themselves. I'd say A+.”
“I had a good experience with them. They replaced all my windows, and the workers were very efficient—it only took a day and a half. Hopefully these windows last a couple of decades, but I will use Window Nation again if I needed to. I'd give them an A+.”
“I thought the work was very well done, and they were very convenient to use. We've owned the home since it was built 27 years ago, and it was time to do maintenance on the windows. They replaced all sixteen of the outside windows, the storm door, and two sliding doors. So, they pretty much did a window makeover on us. I got the idea to use them from a coworker. They get an A+.”
“I had a positive experience. They installed 19 windows for me. The work was done quickly, and we're satisfied with the product. It was my first time using them, and I would use them again. They would be an A+.”
“It was my first time using Window Nation, and my experience with them was very good. They replaced 21 windows. I'd rate them an A+.”
“Window Nation was great. They were on time, and the product is great. I'd rate them the max—A+.”
“My experience with Window Nation was totally positive. What stood out was the timing of the job—they got here in time and got it all done in one day. They were here like half an hour before they said they would be, and I think they were out of here by 4:00 or 4:30—they were done even a little bit sooner than they thought they would be. They installed ten double-hung windows, two sliding glass patio doors, and a bay window. The people were professional and very nice, and the cleanup was fine. They picked everything up, and there was nothing left around at all. Everything was good to go. They're an A+.”
“The quality of the windows was good, and the team that put the windows in was good at what they did—I can't complain with their installation. It was just very well done. It was my first time using Window Nation; I heard about them from a neighbor of mine who got windows from them. There were no complaints about the work. A+.”
“They did a great job with my windows. They were all very nice and very polite, and they worked efficiently. It was my first time using them, and I would use them again. They were great. I'd give them an A+.”