Without question, we chose NOVA Installations for a second window improvement project and front entry door replacement. Chasing alternative quotes for our proposed project was pointless. Our initial experience, a full home window replacement, was excellence from product quality, installation, value and customer service. Once again, this has been our experience. A call to their Chantilly office, Sheryl had Joe scheduled for a consult the next day. Our vision: a sliding glass door to replace a pair of windows, allowing backyard access. Elimination of the adjacent window paned entry door and egress, enlarging our family room living space. From our vision, Joe proposed an alternative, balancing remaining windows and transom with a custom size ProVia sliding glass door. His revisions made significant enhancement to the room's footprint and allowed us to move forward with replacement our front entry door. Here again, with my general vision, Joe brought his professional guidance and we had selections made in minutes. Our new ProVia entry door... I've never made a change to our home that has had as many compliments or requests for referral. From here, we need to thank Sheryl for her patience and professionalism accommodating scheduling adjustments, of which there were several. Ricky and his assistant managed a one day installation of both doors accommodating preparations for an exterior siding replacement and finishing with flawless interior appointments. As observant DIYers... witnessing Ricky's install was a master class in carpentry. Attention to detail was above and beyond. Lastly... my delay in posting this review has tested our ProVia doors with Virginia's '26 formidable deep freeze. They performed beautifully. We're very very satisfied customers. We wish Tom the best as he enjoys retirement and thank him for the service he extended to us to unquestionably be repeat customers. Entrusting the business with Joe and NOVA's team continues your exceptional business and solid reputation. read more

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NOVA installed new windows in our home 5 years ago when we purchased it. We had a minor issue come up, I called, and they were out within 24 hours to repair, no questions asked! Amazing! Will use again for our next project! Thank you! read more

Had 17 windows replaced (20 year old Andersen windows) in our house (8 main level, 9 upper level). Had front door replaced as well. CINC-House now happy. All new windows are energy star along with better U-Factor, SGHC, and VT). All work and cleanup done on time with no issues. Cost was much lower than other quotes we received (especially the one in Maryland that advertises a lot). Strongly recommend this company. read more

Unfortunately I'll never us this vendor again due to the unprofessional way they've handled two different window issues on the same job. In total, I had 25 New construction Andersen 400 E windows in our residential remodel. With my General Contractor at the table, when I asked for a complete privacy window for a 1/2 bath near our front door that I didn't want to put window treatments back up after an overhaul, NOVA promised he had a window treatment with complete privacy. FAIL. The night the window was installed we tested it & you could 100% see through this window. For months NOVA promised they were coming back to apply a treatment to the window. FAIL. When they called me for the $500 balance on their bill, I said I'd pay it as soon as they fixed the window. NOVA window boss made a sleazy car salesman seem like a boy scout! He washed his hands of my window problem & agreed (via text which I saved) I would not pay the $500! HIS OFFER, NOT MINE. 2nd issue arises a year later, 60" 45degree NEW construction kitchen bay casement window & neither window opens now! I call for NOVA to take a look or for them to contact Andersen. NOVA's first comment, "pay me the $500 you owe me." Should I be surprised, absolutely not. But I tried. I tried to appeal the the sensible part of a normal person who might take responsibility for failing to fix a problem they created and then renigged on fixing. I'd have been more than happy to close out his original balance if he had just fixed what he said he was going to fix. [EDITED OUT COMMENTS on 9/10 after NOVA provided a copy of a check they wrote to my GC they claim was to handle the window lack of privacy problem he (NOVA) wasn't willing to return to fix.] My GC by the way, was furious NOVA never fixed the bathroom window to begin with! My GC was personally going to come "treat" the window himself because he knew that he had to originally talk me out of my 1st option... glass block! But, my GC like me, took NOVA at their word for a private window. FAIL! While the NOVA install team was nice, they were agressive in how they cut out the old windows & did far more drywall damage than my GC (with nearly 40 years in construction) thought was reasonable. I still only give one star because the poor Customer Service is a problem & you are failing the customer especially when your tone over a problem turns dirty. In the meantime, I did hire a local man in Poolesville, MD who does window films and for a very reasonable price, he gave me over 500 decorative films to choose from to make my 1st floor 1/2 bath window 100% private!! I would never purchase a window with a "treatment" on it again because for far less money, you can get a decorative film of your choice by a reputable business man! As for the 60" 45 degree Andersen casement bay window? Now I get to deal with Andersen. [Edited again 9/10/24 here to add:] Customer service means everything. If you tell a customer you're coming to fix something YOU got wrong, then live up to your word. If you install something that fails, be a professional in your process. read more

We have waited 20 years to upgrade our 1950 original windows with energy-efficient casements. We did not want to lose light and requested full tear-outs (stud-to-stud) to ensure the new windows were bigger or at least not smaller than the originals. Yet, months later, the windows that arrived were 'pocket inserts' - the installers simply removed the glass from the old windows and put smaller ones inside the original frames. This means the empty spaces around those original frames were not filled with insulation, undermining the point of paying over $1,600 per window for a more efficient home envelope. The process of communicating about the windows, then getting them measured, then installed took months. I'd suggest finding a company that measures the windows before demanding a 50 percent down payment, so you can more easily walk away if you have any reason to question whether they are 100 percent on board with your request. read more

I first contacted Nova Installations for a quote replacing my windows (18 windows on my townhouse). John stopped by, measured and provided a quote for a variety of windows they offer. No sales gimmick, no buy today and save x %. Just literature to educate myself. Morning of the window installation a womanI showed up and covered all flooring in a protective blanket, as each window was finished and sealed, she cleaned with windex and vacuumed the space. loved the install team and Art so much I decided to get trim clapping and then siding! :) each visit was pleasant. The only thing left to replace in my home is two doors and I'll definitely reach out to John when it's time. read more

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Excellent service and Art Dunn and his crew did a fantastic job on my windows. He is very professional, helpful and a nice person. I had my windows completed about 3 years ago and they are still doing very well. Art, the owner is very responsive and extremely reliable. He was kind enough to return to make some minor adjustments so that my house would be warmer. Overall, I highly recommend his services and would not hesitate to reach out to him again for future remodeling. If you are looking for a competitively priced, professional give Nova Installations a call you will not be disappointed. read more

I purchased replacement vinyl windows for my condo from NOVA Installations years ago and Art Dunn (owner) stands behind his work. First he dispatched a great install team (Eric and Jeremy) and they did a fantastic job. But what I like is the integrity of this business. I needed two repairs years later and Art has been responsive, efficient, and honest. He personally came out to fix the problem. I would high recommend NOVA Installations, and I will use them again in the future. read more

Nova replaced all of our external doors in February. Very responsive, reasonable quote, and easy to get the scheduled. Can't recommend them enough. read more

Had a storm door installed by them. The process was easy, and the door came quicker than they originally anticipated. The quality of the door is great, the color matches our home perfectly and the installer was professional and did a great job. read more

We've had a lot of windows replaced and some more than once. Tom setup the appointment with us. He was on time and very professional. He told us when the windows would be in and they were on time. Juan and Harrison arrived with the windows that were being installed on the second floor. These two worked great together as a team. They covered the floors with drop cloths, cleaned up the work area and cleaned the glass before leaving. I would use Nova Installations again and recommend them to everyone who needs new windows. read more

We had 25 windows replaced on 4-5 August 2022 in Clifton, VA, and they were outstanding. It took 2 full days (1 for interior work; 1 for exterior) but the team was polite, courteous, hard-working and conscientious; final day clean-up was meticulous. They worked hard under hot, humid, "heat advisory" days, around challenging landscape conditions, and high elevations around some windows that were 31 years old, foggy, and had dry wood rot; the results were beautiful and beyond our expectations. I would highly recommend NOVA installations without hesitation. read more

My first experience with Nova Installations was excellent. We needed a new storm door, Art Dunn came out, measured and in no time, it was installed. 5-star. So when we needed a full doorway rebuilt, we called them again. Art came out and I requested options -- because we weren't sure the type of door we were looking for. We never heard anything back. A month later I sent a follow up email -- never heard anything back. Recently I received an invite to connect on a networking site. I wrote Nova and reviewed my experience in 2018. They ignored the no response but apologized for the auto send on the connect email. When I dug a little deeper about never responding with bids, I got these responses: "We would love to be the answer to everyone's home improvement needs especially when we have a previous satisfied customer; but some things are out of our scope of work. Also, to be honest, June is probably one of our busiest times and we may have lost track of you." When I brought up the follow up email and non-response and the fact that if they were too busy, Art could have mentioned that on site or told me they could not do the job: "I can see you are unable to get past the fact that we let you down." No Nova -- I'm not let down. I happily found a contractor who was able to come out -- offer suggestions -- and offer a bid. He let me know when he would be free and asked if that schedule would work on our end. It's not difficult to keep a satisfied customer satisfied. But never responding...twice...is not a great path. Maybe 2.5 stars? Because it was a 5 -- then a zero. So yes, 2.5. Just a quick update (February 4, 2019): I got this email from Nova Installations today: "I wanted to let you know that your arrow founds it mark. We did indeed lose a $15,000 contract as a direct result of your Yelp review." They blamed the loss of a business on my review. I tried to give them repeat business, I was a satisfied customer, I was not upset with the quality of their work. I was disappointed in their lack of response. But the poor review came due to the office staff who felt that being repeatedly flippant and unprofessional was the way to get return business. Sorry Nova Installations. You're the ones shooting the arrows. It's not hard to get happy customers to come back. Just treat them with respect. read more

Excellent experience working with NOVA Installations, their process from quoting, installation, and follow up was flawless. We could not be happier with the results and have recommended NOVA Installations to family and friends. A family owned company which will go the extra mile to meet your expectations. read more

Only recommended for defenestration! I want to jump out of my old windows after dealing with this company for 20 weeks without success. Signed a contract and put 50% down to get windows within 6-9 weeks. So far their excuses have included a glass shortage, COVID, not being able to buy black paint and now quality control. Their latest and greatest idea was to partially install mismatched windows. Their sales team and manufacturers give conflicting excuses. They have canceled not one, not two, but three installation dates with only a few days notice. Don't believe anything they say or promise. If only they were as transparent as my missing windows should be... read more

NOVA Installations came out and replaced some old windows on our townhouse. Overall, process was easy and the windows were an upgrade. Everything was fine for about 18 months and then our bay window started leaking. It had never leaked in the 10 years prior with the old window. We called NOVA and they sent someone out, who didn't even really look at the window, just said that what they did didn't cause the leak and he claimed that from the street he could see where on the top of the bay window there looked like a problem. However, we had it checked out, and I even got on the ladder and went up to inspect and couldn't see anything at all. Now, the ceiling at our bay window is destroyed and leaking everywhere and we are having to pay to fix it. read more

They did our windows, a sliding patio door, and a basement door about 4 years ago (now 2019). The storm door has been nothing but trouble - the rest of i.t has held up okay so far. The storm door - a ProVia product - these guys are the vendors - is horrbile. Avoid the brand if you take my review seriously (and I'd recommend that you should, of course!).... in addition to the shoddy workmanship of the manufacturer, I have found that it is difficult to contact NoVa itself for any help. Caveat emptor! PS: to be specific - the storm door handle is particularly bad - keeps falling apart! On top of that it is noisy and flimsy read more

Nova Installations completed several projects on our house including new storm windows, Hardy-board siding, and new gutters. Very pleased overall with the level of workmanship and the cost. Art Dunn is extremely easy to work with and provided a very low pressure estimate. I think we were most pleased with the lack of aggressive salesmanship -- he was honest about what our best value solutions were and did not try to upsell anything. The siding work was completed by a sub-contractor, I believe. We had a problem with how that team installed trim around a window. Nova was very understanding and helpful and worked with the sub to re-do that portion of the work. Scheduling was easy and everything was done on time as promised. Would highly recommend Nova and Art Dunn, in particular, for this type of work. read more

We were disappointed in the poor quality of the windows, which were manufactured by Northeast Windows USA. But this was a fix-up for sale and high quality was not a priority. The installation went well. Outside of some debris found in the beds below the windows, the work was well done. The reason for our bad review is that we learned after the sale, that the the "lifetime" warranty would be voided the minute we sold the house. This installer sold us these windows using the lifetime warranty as a main selling point, knowing full well that this warranty would be voided when the home was sold. That is unethical. NOVA Installations of course blamed the window manufacturer, but it was NOVA's responsibility to inform us about this very critical issue and they did not. read more

I selected Nova Installations to install new windows in my condo based on the fact that their ad that I found stated they were Checkbook-recommended. I was not disappointed! I dealt with the company owner, Art Dunn, who was really nice and responsive--from my initial meeting with Art to window ordering & installation (during the holidays!) took just 3 weeks. I felt the price he charged was fair, and his team did a great job with the installation and left the job neat and clean. I recommend Nova Installations without reservation! read more

Nova Installations just completed replacing the windows and a sliding door in our 26 year old town house. They installed 18 windows plus the door and were finished in one day - about 8 hours. The crew was respectful and kept the project tidy and clean at all time. We received a total of three quotes for this project and Nova was the best price and the best value. We contacted Nova based on the recommendation of a neighbor who used them several years ago and they were just as pleased. This is not a fly by night company. I have one more door to be replaced and I will definitely call Nova. Thanks for a great project. read more

Art is the best the person to work with and did a excellent job and my neighbor are very happy with the jobs. read more

We originally found NOVA Installations for replacement windows through high ratings in Washington Consumer Checkbook magazine 20 years ago. We have used them in that home and our next home for window replacement, a new roof, and doors. I recommend them highly as each experience has been ideal, and a reasonable price as we got multiple estimates each time. Our rep has always been Art Dunn. I love a laid back, knowledgeable, no b****t person and that's Art. They carry several lines of window manufacturers and can educate you on the differences. Even once we need them to come back to check/fix part of the replaced roof 3 years later, Art came himself and took care of the work. Consider them when getting quotes and you will be glad you did. read more

They did our windows and siding back in 2009 and did and excellent job; everything is still holding up well. The utility bills went down as expected and the house looks great. I've had several neighbors tell me it's the best looking house in the neighborhood. Definitely call them. read more

Art and rick where very easy to work with they replaced my roof and two large bay windows there team took the time to make sure the job was done correctly and cleaned up I couldn't be happier with them read more

One of the best local companies out there! Honest, fair prices, and unbelievable customer service. Would highly recommend!

I got 17 estimates for windows and roofing for a remodeling home project last year. Nova Installations give me they best package deal. The service was excellent and I recommend no one but them. read more

I had an in-home estimate with Nova but opted not to use their services. The salesman could tell me a lot about the one brand of windows Nova carries and why they're superior. But was absolutely unable to answer questions about whether the water damage my old windows had caused/are causing (due to improper installation by another company) must be fixed before a new window is installed. What I wanted to know is: After the old window is out, how could Nova tell what damage had been done and what needs to be fixed, and whether the new window could be installed before or without any remedial work? Since they are window installers, this seems reasonable. But the rep just wanted to pop in new windows. Could not answer any questions, could not move off of sales script. They are just an installation shop. And that may be fine, just know what you're signing up for. read more

Installed 30+ Andersen Woodwright windows and 3 doors. Professional advice and high quality work. Pricing was in line with everyone else. Really glad we used these folks. read more

After having been very unimpressed with the confrontational American Home Center in Beltsville, I was happy to sign with NOVA Installations and was treated to an outstanding experience, good mid level vinyl windows, excellent install, install crew that was neat, careful and clean and the owner Art Dunn, a pleasure to deal with. When I looked at the labels on the windows, I realized that the actual product was even more energy efficient that what I was originally promised. AND a neighbor of mine who is a contractor looked at the work and said - Great! read more

Great price, quality, and professional and service! We had our roof replaced and windows. NOVA Installations were the best service we had!

i had been looking to replace all of the windows on my townhouse and i had interviewed 8 companies. some of these companies were well known thru advertisements and local ads that you constantly see every year in your mailbox or on television. i researched all of their backgrounds and found nova installations were clearly the winners here. it was a pleasure speaking with nick during our initial consultation in my home with no pressure to buy and i found it just as pleasant to meet art one of the owner when he came to measure my windows as he entered my home and took his shoes off at the door (without me asking) which showed respect for my home. when the windows i chose to be installed arrived and on the day of the installation not only did the crew show up but so did art. the crew was very pleasant and thoughtful of my home. they were here most of the day and installed 8 windows and cleaned up very well. i would not hesitate to recommend them and would use them again. my windows are just beautiful! if you are looking for an honest company that does impeccable work, i highly recommend nova installations. read more

I've used Nova Installations for skylight and window replacements on my own home and window replacement on my mothers home. I've been happy in all cases with the quality of the windows, reasonable price, and service from the installers. Nova Installations is a small company with small company values. That is, getting it right is the prime goal. I certainly will consider Nova Installations for any future roofing or door replacements. read more

They installed my windows and they were truly great and did not try any of the sales tactics others used. Art Dunn (part owner) showed up on the day of the installation and every went quite well. I would certainly recommend them they are a great company. read more

Nova Installations installed a new roof for me in mid April 2017. The crew used was a sub-contractor for Nova and they did an awful job. Felt paper cut to short in areas did not cut straight edges, ruined my existing capping on my house, left nails on roof, shingles popping up. The owner of Nova did try to make the discrepancies right before being paid. Part of the problem was the job was too big to be done in one day. They started at 7:00 a.m. and finished at 7:30 p.m.. By 3:00 p.m. they were tired and their workmanship suffered. I can not recommend for a roofing project even if the price is cheap. read more

They did a fine job on our patio door but were not particularly respectful of our home or clean. I had a baby in my arms so it was clear that I didn't have a lot of free hands to clean up a mess and don't expect to need to move everything in a 10 foot radius of their walking path where they dropped trash and didn't pick it up. They also moved patio furniture and didn't replace and left the back gate open. Most annoying, they took down a curtain rod and curtains and we had to ask them to put it back after they left it across our couch. I'd be concerned about what it would look like after doing several windows. read more

We worked with Martin on our sliding door replacement. He was knowledgeable, accommodating and knowledgeable. Installation and product chosen were delivered as promised. They promised a bottom door lock which was not available at the time of installation but they followed up and installed it a couple of months after when it became available. They corrected mistakes without issue and until all parties were satisfied. read more

NOVA Installations installed a new exterior entry door and storm door for me. There were also side window panels and the transom over the door needed to be replaced and insulated. I LOVE my new doors. Both doors are beautiful and the storm door is quite heavy and secure. What a difference! Art Dunn was a pleasure to work with to provide options, price and coordinate the job. Since it was a bit of a tricky job (these buildings are 70 years old) Art had the installer, Terry, come out prior to the installation to make sure there wouldn't be any hiccups. Terry returned on installation day and did a fantastic job. I highly recommmend NOVA. [Stephanie Sever, Fairlington Villages/Arlington Virginia - August 2014] read more

NOVA installations just completed a superior job installing a new front entry door on our home in Herndon. NOVA responded to our call immediately and helped us select and design an entrance without pressure that exceeded our expectations. the timeline to order and install the new entrance was very short. Upon arrival, an experienced installation crew removed the old door and expertly installed the new one very quickly. The entrance is fabulous - it dramatically improves the attractiveness, insulation and security of our home all at once. NOVA is NOT a pressure sales company. They keep an experienced crew together and are expert installers in all of their business areas. The owner visited during the installation and after it was completed to ensure the work was done properly. All can say is; the fit, finish, other features exceeded our expectations. We strongly recommend NOVA installations and will use them again. read more

Just like others have said, the owner showed up to commence installation and to guarantee satisfaction. With customer service being virtually extinct now, this co. stands out like no other in terms of old fashioned excellent customer service. I cannot recommend them highly enough. Every staff member I met was friendly, competent, and extremely professional. Hard to believe you could go wrong choosing them. read more