Top Commercial Window Installation Near Ashburn

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Unicorp Home Energy Services
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Award 2017Super Service Award
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Recent Review: Wow, Just Wow! From the salesperson Doug, The coordinator Megan and they saved the best for last the install crew lead by Pawel K. My windows in my house had all turned to fog and I have a highway behind my house which you could hear every car that passed by. I invited 4 different window and door companies to my house and by far Doug was one of the most professional and helpful of the window companies. We discuss sound issues and he recommended Laminate Glass, we also went through details of the insulation, doors etc. after talking to all 4 companies I sent them all each other quotes and Doug really wanted our business and came back with the best price and warranty. I never felt pressured to work with Unicorp but they kept me informed of what deals they had for my situation. Thank you, Doug, for being Fantastic! Once the sale was complete, within 48 hours I was contacted by Pawel who was the lead for installing the windows. I provided him with times I could be home and he drove in late to measure all my windows, which I really appreciated. During the measuring, he explained the install process and the details of how they would seal and wrap the windows. Later that week I was contacted by Megan who kept me informed of what stage the windows and doors were in and how long it would be for the completion. She was also very flexible in determining dates that I could take off work and be there for the install. The best part was the install. a 2 and 1/2 day process. Pawel and his crew were fantastic. I can't tell you how professional they were in keeping my house clean, trying to keep the house warm in the winter and they really seemed to pay a lot of attention to detail. Anytime I had a question they would go out of their way to explain what they were doing and how. Its rare I am able to trust people so quickly but they are soo professional and really took pride in their work. It really showed that they cared. When I decide to replace my siding I will 100% hire Unicorp again and I will highly recommend them to all my friends. Thank you for your professionalism and hard work!!! If I could give 10 stars I would. I wish I had some before and after pictures. Amazing job, my house looks 100 times better.
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Window Nation Inc
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Recent Review: I purchased 10 windows from Window Nation. For two of the windows they installed 27 inch windows where we had 33 inch windows. It looks ugly as they put plastic where the windows should have filled the opening. It was this past summer. They have since had two people measure the windows and it is now after Christmas and still no word from window nation. The sales person keeps lying to me that they will be in contact as I have heard nothing. They promised custom maid windows that is not the case. They promised satisfaction and I have ugly windows with a filler to make up for their mistake. They also promise to correct their mistake but they have not responded to me at all. I intended to use window nation for the other 16 windows in my house. This is certainly not the case now. I just want my money back for the wrong windows and not talk to these people again. I can't imagine a company like this doing business like this. Stay away from Window Nation!
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Tri County Windows and Siding
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Recent Review: We received TriCounty's info via a friend who had already used them twice for a patio door replacement and window replacement. We were in need of replacing 23 windows on our home to update from the 20 year old builder grade windows. Scott talked me through various different options and even walked through various brands that we were looking out. He was completely honest if he had not worked with a brand previously and did not attempt to give his personal opinion on them to try and sway our choices. He walked me through all of the various components of a window (UV rating, etc), so that I understood what each meant and the impact for our home. While many would try to upsell you to the most expensive window, Scott took the time to understand what our needs/concerns were, how long we expected to own our home, and then based his recommendation on that information. We ended up with a excellent mid-range window that has drastically changed our home. It's no longer drafty, noise has reduced from outside, added multiple opening options, and we've already noticed a HUGE reduction in gas expenses reducing it by 2/3 of the normal monthly expense. On top of that, we've actually noticed a reduction in our allergies - which while not proven - we believe to be because of a tighter window seal around the window opening/latching area. I highly recommend including TriCounty in your considered set of window replacement companies. It is a small business company, owned locally, and it was the only individual that could come with a full list of customers names and numbers that were willing to be called for referrals/information on their experiences.
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Michael Nash Design Build & Homes
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Recent Review: Each project has gone beyond our expectations and ended with our complete satisfaction.
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Door Pro America
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Recent Review: We went through Costco for two new garage doors and the company they use is Door Pro America.  It took a little while to have a salesman come out for an estimate, but that is because they do a lot of business, which we took as a good sign.  The salesman Matt was very professional and had a good knowledge of the product.  We thought the prices were fair.  We ended up purchasing a higher level of door than Matt recommended, because it had some features we wanted, but I was impressed that Matt did not try to push us into the more expensive product.  Because our doors were special order, he said it would take 3 weeks for the doors to arrive and that estimate was right on.   When we set up the installation, they gave us an 8AM - 5PM window, but the day of they updated the arrival time, and the installer actually called to see if he could come early.  The installer was very friendly and professional and removed the old doors, installed new tracks and the new doors, and reinstalled the new doors in about 2.5 hours.  He hauled away the old doors and tracks and left behind no mess or debris.  The only issue with the installation was that the decatrim panels for the windows were on backorder, but another installer (who also friendly and professional) came out just 3 days later to install the panels.  We're very happy with the look and the quality of the new doors; they are 2" thick and we can already feel a difference in the temperature in the garage due to the level of insulation of the doors.  We're very pleased with the product and the experience.
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Angel Home Enterprise
Recent Review: While work performed was completed a few observations: 1. Did the "Angie's deal" and certainly expected to pay more, however I was being charged not only for labor for repair but was also being charged for supervisors time while he was on site and discussing fix actions with me. This was pretty much the cost of the "Angie's deal" which seems to negate any "deal". Certainly makes me wonder if any of these deals have any merit and definitely gives pause before considering any future business via the "deals" 2. Contractor uses Bondo to repair wood rot which is not ideal to repair in WOOD as Bondo does not expand and contract like wood, there are wood filler products that are specifically for repairing / filling wood rot repairs. I suspect they use Bondo because it is the cheapest product. 3. While the work was completed the contractor IMO was more interested in how much $ they can get out of the job, labor hours were excessive for the job and as mentioned additional charges for supervisor when on site (at twice the "labor rate" of workers) is absurd. I will not use this contractor again nor would I recommend them to anyone. My neighbor in fact asked me about the job as they had some work needed and informed them of these items and certainly not recommend.
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Nova Installations Inc
Recent Review: These guys are great. I used them to replace 20 windows in my home 1 1/2 years ago. The windows are incredible - triple pane. They completely blocked street noise. I think they reduced my winter and heating bills by at least 35%. My home (heat pump) actually feels warm in the winter. And they look nice. Do get triple pane glass if you want to block outside noise. I must have interviewed almost every window company in N. Virginia when I did the original replacement. I believe Nova Installations was the 2nd lowest cost, but more important, my conversations with Nova left me with a sense of trust which was the most important thing to me. I called them back recently after an unnamed power washing company cracked two of the windows. They have good records and knew exactly what I needed for replacements. They told me the approximate date I could expect the windows. They called early in the morning and asked if it would be convenient for them to install between 12:00 and 1:00 pm. I asked them if they could delay until 1 pm - they arrived at exactly 1 pm - remarkable. They left at 1:30 after cleaning the windows they had just installed, leaving nothing for me to clean up. There are lots of window businesses in N. Virginia. Nova Installations is in the customer service business. There is a difference. They also have a great selection of windows.
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Homecraft Builders
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Recent Review: I was pleased with the initial contact by their sales rep. Not once was I told I needed to have both homeowner's at the appointment before they would offer us an estimate. During the appointment all product options were presented in detail. A written estimate was provided at this first meeting. Once accepted it was only a matter of a few days before I was contacted by the company owner, an appointment was set to measure the replacement windows/slider door and in approximately three weeks we had confirmation that our order was ready for installation. The installation crew arrived on schedule, completed the work in a timely manner and left the home so clean one could not tell there  had been a crew of three working in the home. A few hours after the work was completed, the business owner came to our home to inspect the work, answering any questions we might have and making sure the job met his high standards. We would highly  recommend this company to anyone wanting to have replacement windows Simonton) installed . And I feel confident that they would have the same high standards for any of the other services they offer.  There is a high level of professionalism and one can tell the owner takes great pride in a job done well.
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Windows on Washington
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Award 2017Super Service Award
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Recent Review: As a proud and sometimes too hardcore of a DIY homeowner, I am a tough customer when it comes to expectations for a contractor (read: I can be a pain in the neck to ones that don't care enough about quality). I thoroughly put 6-7 contractors through the ringer when selecting windows and siding job 2 years ago. I simply could not find a contractor/window pairing I was satisfied with until I met WoW. Even then, I still ran it like I would my business - I thoroughly interviewed, worked back and forth with estimates, and then essentially did a try before you buy and bought 5 windows (of expected 20+) so I could see the quality before I continued. The end result: I've subsequently did 2 more major jobs (remaining windows) and Hardie siding and I couldn't be happier with WoW. After 2 years of monitoring, the initial results have withstood the test of time. Like so many of the reviewers, there are many things that make them special. Here are some of the highlights that made them special from my perspective: 1. Sales: Polar opposite of "buy today" pressure sale or price goes up sales approach. They are so willing to work with you until you are comfortable in a pressure free environment. Brandon, our trusted Rep, was PHENOMENAL. I checked gmail; we've literally traded 100+ emails since we've started doing business. He is fantastic, as has been every interaction with WoW. 2. Customer Service: We had 1 minor issue with one of our Okna 800 series / HiMark windows. We emailed Brandon, and it was fixed with no hassle as soon as replacement sash was in. Keep in mind: this was a very minor and small black smudge (no wider than angel hair pasta and no longer than length of 1/2 dime). Zero questions or hassle. Easy. 3. Quality. Top to bottom, fantastic. This is the right mix of contractor quality and product quality. Every cut, corner and trim is meticulous. 4. Pride of Ownership. One of the main reasons I was so picky selecting a contractor is because we had some pretty substantial air infiltration issues. It was fairly complex and hard to diagnose exactly what was going wrong. I had energy specialist out to the house, paid for energy audit, etc. We did a lot and no one could find the source. Enter Eric the president of the company. He personally came out to the house on three occasions including the day of the start of the siding installation to confirm options and best approach. Enough said. I felt the WoW love. WoW will be my 1st call for any exterior home improvements. I can personally attest to top notch work for windows, siding, gutters, and aluminum flashing/wraps (windows, roofs, etc.). Thank you WoW for being professional and excellent at what you do. I am a very satisfied customer.
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ABC GLASS & MIRROR, INC
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Recent Review: I emailed ABC Glass and mirror on a Saturday and was contacted via email the following Monday. I scheduled an estimate for the following Wednesday. The two estimators came during the scheduled 2 hour window. They took one look at the patio door window and immediately knew what size and glass type. It was measured still, and they were right on the money. The entire thing took less than a minute. One of the men advised I would be called with the actual cost of the work. I thought that was odd because I thought that?s what they were there to do. None the less I waited. I didn?t hear anything back the day of the appointment or by close of business the following day. So I emailed Daphne, with whom I made the appointment and requested the estimate via email. I got the estimate via email from Daphne the estimated cost and since it was within the budget I thought it should cost I went ahead and called to schedule the work. I was advised in the email that 35% is required as a deposit and the remainder is paid to the installers on the day of the install. I called and spoke with Daphne and she took my credit card info. She advised they would order the window and call when it comes in to schedule the installation. I got a call a little over a week later and was advised the glass was ready and we scheduled install for the following day. The guys came during the quoted time and did the work in about 30 minutes. They were very professional and left no mess. I called the office to pay my balance and will be emailed the final receipt. I emailed three companies on Angie?s List and ABC were the only ones to respond to my estimate request.
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The Window Man
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Recent Review: It was a smooth process from start to finish. Installation went well -- did the entire job in one day, we have had no problems and things look great. Not going to comment on price, because I chose a more expensive option than vinyl but not the most expensive option available (Andersen). One thing we appreciated: two of our patio doors face a busy road and previous owners had installed internal patio doors (in addition to the original ones) to cut the noise. The estimator was honest in saying we might have slightly higher noise levels when replacing the two layers of doors with a single one. He also noted there would be extra work trimming out the area after the internal doors were removed. Turs out the noise level is the same, but we appreciated being warned that things might not be perfect instead of issuing a blanket assurance just to get the job.
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Walker and Clarke Builders Inc
Recent Review: After a very severe rain storm we noticed a small puddle of water on the flooring below the front windows of the first and second floor of our house. Further investigation indicated a softness of the window sill wood on a couple of these windows. We realized that some problem was evident..but...was it a window problem, a structural problem, a roofing problem, or something else? After calling several "window" companies we discovered that they only replace windows...they don't diagnose the origin of the underlying problem, nor do they replace woodwork that has been damaged. Likewise, roofing company's only fix roofs. We needed someone with a lot of structural experience and well versed in skills and experience with similar problems to help us . Fortunately, we researched Angie's list and selected the company that most matched the skills and experience we needed.I also valued the fact that it was a family organization with two generations of experience in all the skills area we needed. I sent them an email on Sunday which they replied to immediately and the very next day the owner Donnie Walker came to the house and carefully evaluated all the potential issues causing the problems. By the time he finished he knew exactly what the problem was and what had to be done to solve it. Because of the serious potential for damage in the event of another rain storm Donnie rescheduled his other less urgent jobs to accommodate fixing our problem the very next day.The next day he and his crew which included his Dad who began the business over 30 years ago came exactly at 8:30 am. and began the awesome project. They worked non-stop without a break for over 9 hours and when they were done everything was fixed and looking PERFECT. We have had a lot of experience with contractors and workmen. This is the 13th home we have owned in over 40 years. We have experienced the good, the bad, and the ugly of contractors but mostly the good. But I have to say Donnie Walker and his team at Walker and Clark are among the very best you will ever find. They are experts in what they do, they are courteous, clean, efficient, and thorough. The most important factor is that Donnie ( the owner) is the lead worker  and supervises every aspect of what the other members of his team do. We appreciate that Walker & Clark is an organization with high standards and excellent values.
Reviews of Local Commercial Window Companies
AAmerican Windows & Siding...
Jim from American Windows came and presented the same style and quality of windows that Thompson Creek and Window Nation have, but $7K and $5K less respectively. American Windows does not have the annoying jingles, commercials, and other expensive advertising to pay for; so, the price was enormously less. The installers were great; very professional.
- Katie D....
BWhiting Co...
During the the negotiation time frame they were quite responsive and helpful and they worked with us on the planning for the windows. After payment was made it was hard to get the salesperson Tony to respond to email. That may have been due to the fact that they are a small company, but it would have been nice to get responses from them via email. The install team was very nice and courteous and they did a great job on the install. I was quite surprised to see that the installers didn't all work for Whiting. One of the install team told.me that they used people from other companies - one of them even had a Long Windows shirt and sweatshirt on! As long as Whiting garuntees their windows, I suppose I don't care who installs them. The owner Tim seems to be a good guy and I would rather give the money to a smaller business than someone like Long Windows.
- Robert R....
ABenchmark Painting & Carpentry Inc...
We have had wonderful experiences with Benchmark from the beginning across three lengthy jobs (about to hire them for a fourth), as they have delivered first-class work in a timely, cost-effective and professional manner. In terms of cost, they have consistently surprised us with (i) their initial quotes, when we asked for them, and (ii) their actual prices once they had gained our trust and we began to hire them on a time+material basis. The final prices were lower than anticipated in all instances, and, when we were still seeking competitive quotes, lower than quotes received from other businesses. In terms of quality, they have been first-rate, and the few times we had any problems whatsoever in the midst of a job, they addressed them to our satisfaction on the spot. They have modified the sizes of their crews for individual jobs, and all crew members kept busy and worked hard while they were here. Very skillful, trustworthy and professional people.
- Tim S....
AZen Windows of Washington DC...
Scott, the franchise owner could not have made this process any easier. He was very responsive and easy to work with. We put off getting this window replaced because we thought it would be a hassle. We were wrong. If we ever need another window or door I will not hesitate to call Scott again. I sound like a commercial but I very much appreciate an professional, efficient company at a reasonable price.
- Wendy L....
AKelemer Brothers...
Fast and professional installation of 20 replacement windows! Installers were highly skilled and cleaned up after the job, which was perfect . Beautiful windows installed in less than a day. Owner of business (Gabriel) was on-site to inspect and explain all functions of new windows. A most satisfied customer, highly recommend Kelemer Brothers!!
- Mark A....
AKelemer Brothers...
Doing business with Kelemer Brothers was a highly positive experience; one that I found to be unique and rare in any business. I recently bought a home and knew that I would have to replace an old and outdated bay window in the home. I got recommendations for window companies from my neighborhood Listserve and contacted one or two different companies. Kelemer Brothers was recommended to me by realtor, and so I knew they would be good, but I didn't realize how wonderful they would be. From that very first phone call, Joe Kelemer was helpful, personable and thoughtful. He made an effort to connect with me as a customer as well as an individual. He gave me things to consider when purchasing a window (types of materials, style of window etc.) even before I had agreed to do business with his company. When I met with him in person, he was very patient, kind and forthcoming with information. He gave me a realistic time frame and told me to give his proposal some time and thought before making a decision. I loved that he wasn’t pushy to “get the job” which I had experienced with other companies. He didn’t accept any money from me even when I signed the agreement to use his services. As promised, he delivered a beautiful bay window, which was expertly installed and changed the whole look and feel of my new home. Joe stopped by after the job was done to check in with me and ensure I was happy with the work. He even brought some beautiful roses, which he said he does for all customers after a job is complete, as a way to show that he appreciates the customer and their business. Wow! This attention to detail, good customer service and care for positive and strong customer relationships is truly rare and a welcomed breath of fresh air. I couldn’t have asked for a better experience. Thank you Kelemer Brothers for your amazing work and service.
- Angela S....
AUnicorp Home Energy Services...
Wow, Just Wow! From the salesperson Doug, The coordinator Megan and they saved the best for last the install crew lead by Pawel K. My windows in my house had all turned to fog and I have a highway behind my house which you could hear every car that passed by. I invited 4 different window and door companies to my house and by far Doug was one of the most professional and helpful of the window companies. We discuss sound issues and he recommended Laminate Glass, we also went through details of the insulation, doors etc. after talking to all 4 companies I sent them all each other quotes and Doug really wanted our business and came back with the best price and warranty. I never felt pressured to work with Unicorp but they kept me informed of what deals they had for my situation. Thank you, Doug, for being Fantastic! Once the sale was complete, within 48 hours I was contacted by Pawel who was the lead for installing the windows. I provided him with times I could be home and he drove in late to measure all my windows, which I really appreciated. During the measuring, he explained the install process and the details of how they would seal and wrap the windows. Later that week I was contacted by Megan who kept me informed of what stage the windows and doors were in and how long it would be for the completion. She was also very flexible in determining dates that I could take off work and be there for the install. The best part was the install. a 2 and 1/2 day process. Pawel and his crew were fantastic. I can't tell you how professional they were in keeping my house clean, trying to keep the house warm in the winter and they really seemed to pay a lot of attention to detail. Anytime I had a question they would go out of their way to explain what they were doing and how. Its rare I am able to trust people so quickly but they are soo professional and really took pride in their work. It really showed that they cared. When I decide to replace my siding I will 100% hire Unicorp again and I will highly recommend them to all my friends. Thank you for your professionalism and hard work!!! If I could give 10 stars I would. I wish I had some before and after pictures. Amazing job, my house looks 100 times better.
- John S....
APeak Roofing Contractors Inc...
I was very happy to find this company! I love supporting hard working & honest small businesses! They do wonderful work and solved our issue. They were easy to work with. I would recommend them! Office staff was very helpful and professional.
- Darlene H....
AKelemer Brothers...
I offer a wholehearted endorsement of Kelemer Brothers. My window replacement project was handled with excellent customer service, professionalism, efficiency and a superb installation. I dealt with Joe who always made himself available to answer any and all my questions, my windows were delivered as promised and installed by Vincent who took great care to protect my floors, walls and furniture during the installation. I am more than pleased with having done business with Kelemer Brothers.
- Arun S....
AMW Construction Services LLC...
We had an excellent experience with MW Construction. We received bids from 3 other firms and found their pricing to be competitive. We found MW to be very responsive from the beginning of the design process all the way through project completion. We worked primarily with Greg Marks during the sales/design process then worked with Drew Marks day-to-day during construction. Our home is in a historic district in Alexandria and they were great partners moving the project through city approvals. Once we broke ground there were workers at the house an average of 5 days a week with only the occasional down week waiting on subs or weather. We gave the workers and subs complete access to the house with a punch code door lock and that worked well. We also lived in our home throughout the construction. I was very impressed with Armando, one of the leads, who knew the "right" way to build/fix anything. The project took approximately 6 months of design/approvals (we had to get it approved by a city architectural review board) and then 6 months of construction. We stayed on budget. The thing that impressed me the most about MW was they were always choosing the right way, not the easy way. I felt like they were committed to doing a quality job every step of the way. I'd refer them with 100% confidence and would do business again with them in the future.
- David R....