I just completed a whole house window replacement project with CWS. Good quality windows and a competitive price..good installation, experienced folks on both sales and installation ends made thiigs go smoothly. We have had two houses done by them now actually and the first is still issue free for over 10 years. Installation went fine with the crew showing up on time, professional.. cleaned up well etc.. there's a lot of stress in deciding on replacement windows; I would recommend getting a bid from CWS. Less

The folks at Colorado Window Source did a terrific job with our Hardie siding. We upgraded from hail damaged vinyl and the additional cost was worth it. You know more severe hail storms will be coming. The price was fair, the communication was solid, the customer service is outstanding. The installation crew did real quality work. I have a neighbor with Hardie from another company and our installation is much better. There was a real focus on getting the details right. They are responsive and careful. We recommend them highly. Less

Leo and his team did an exceptional job on our siding project and we can't say enough good things about the experience. The crew, headed by Jose (who is absolutely brilliant) were polite, talented and incredibly hardworking. We had 3 different companies bid the job and Colorado Window Source was the most reasonably priced. We are the third house they have done in our neighborhood and all of us a beyond happy. Highly, highly recommended. Less

Colorado Window Source re-sided my home with James Hardy siding. Jose and his crew did an amazing job, I love how it turned out. The crew worked hard, were extremely efficient, answered all of my questions and discussed the process with me everyday. I have no complaints and would use them again. My parents watched the process everyday and said if they re-side their home they will use Colorado Window Source. Thank you Leo, Jose and the rest of the crew! Less

Let the success story of others attract you to your success. I have always had interest in Bitcoin trading so I can invest for myself and my family, but I was scared of lost until I got convinced by seeing a lot of people giving testimonies about Mrs Susan Ryan an expert Bitcoin trader. and then i decided to finally give it a trial, so far so good, I have made $15,000 in just a couple of weeks I started trading with an initial deposit of $1,000. Don't waste more time contact her via Email: [email protected] WhatsApp: +13523292265 Less

I had some hail damage to my house last year and I was lucky enough to hire Leo and his team to install 9 windows and a sliding door. I am really pleased with their work. My insurance company was giving me problems on the reimbursement. Leo provided the commentary that assisted in a reimbursement of 100% of my request. He even found additional damage on a door that was missed by insurance company. He’s an expert. I purchase Anlin windows which I thought would be the same as my previous windows. Boy, was I wrong. There is a night and day difference in amount of UV rays that these windows filter out. This should really help out on my AC bill. Lastly, I need to give recognition to the installation team. They did a great job and completed the installation of everything in about a day and half. Colorado Windows Source are good people. I highly recommend them. Less

Appreciation they say is an application for more. If I fail to acknowledge you it'll shows how ungrateful I am. I can't be less grateful to a woman who God has used in blessing me and my family in general. I was introduced to Mrs Allen martha few months back Right now I know how much I can boast of about my financial state. She helped me with the little capital I invested with and I made so much profit for myself and my family. Thank you so much Mrs Allen martha and if you are also finding it difficult trading for yourself contact her now Via Email: [email protected] WhatsApp: +1 (817) 866-6931 "Success doesn't come to you, you go to it ... I'm not the one to call you to invest and have a bright financial situation. If you know what's right, you're supposed to contact her now and start trading as soon as possible. Less

Colorado window source is an excellent company. Received my new windows the week of Christmas, could have been a stressful situation having decorations everywhere and it went so smoothly. Leo’s team is efficient professional clean and easy to talk to. Great communication from the company staff. I am so thrilled with my new windows. Looking forward to working with them again on future projects. I highly recommend Colorado Window Source! Less

I had four companies measure and provide me estimates. From beginning to end, Leo and the installation crew were honest, communicated, trustworthy, detailed and hard working! My home was completely transformed with new exterior doors and 26 windows throughout my house. I will definitely re-hire them for my basement windows when the time is right! Also, the product is incredible and the price was very competitive and actually was more affordable for better windows that 2 other companies! Less

I’ve slowly been replacing all of my windows and doors over the years at my home. I shopped around and Colorado Window Source is the best value. Really pleasant sales people and great installers. I highly recommend them when considering replacing your windows or doors. They also install window coverings and screens for your French Doors. One stop shopping! They are also a local company and the owners are hands on. I‘ve always been extremely pleased with the service, the quality of products and the quality of the installation. Less

I have been using Colorado Window Source now for many years. They completely finished our house with James Hardie siding, roofing, windows and gutters. It was the most amazing experience! These guys go out of thier way to do a great job. Seamless and we never worried about anything, they are extremely organized and great attention to detail. Recently this week they put windows in a duplex I own and it was quick and precise and they even fixed something I didn't even ask them to do. Love all of the crews, very nice and respectful and you would not even know they worked here it was so clean after they finished, except that we have these beautiful windows. Thank you and I highly recommend Colorado Window Source for any project. Less

Jim and Bill did a professional install on 3 windows and a sliding door. They also installed a new screen on another sliding door. They noticed that other sliding door wasn't sliding right. They took the initiative and realigned that door frame, and it works better now than it ever did! They spent an extra 45 mins to make sure that second door is working properly. Outstanding work and customer service. Less

I spent a very large amount of time interviewing window companies and windows before choosing CWS. They came in with a higher line window (Vanguard) at a lower price!! It almost scared me away (too good to be true?) but they were the real deal. the business model they use is best quality job at lowest possible price. Tisha was extremely patient with my l o n g email and phone communications. I was very nervous as windows are not cheap and this was a good chunk of money for me. Mike came out to measure and we got all the ducks in a row, ordered the windows and set up an install date. The installation crew (Mike again) came out and got down to business. They were fast and professional; cleaned up well after themselves and were conscientious about my property. We had one small problem that was important to me. One casement window opened in the wrong direction. Scott, an owner, REFUSED to accept my final payment until the new window was ordered, manufactured and installed at no extra charge. I am impressed. We plan to replace our porch and basement french doors soon with Vanguard sliding doors. Wanna bet who I will call first! The Vanguard windows are a better quality window. I have noticed that they are MUCH MORE QUIET than the original double pane windows were. I also notice that the heat of the sun through them is noticeably less. I am not sure but i feel that the furnace is not coming on as often now that the November weather is here and when I touch the window frames they are not cold even when it is 30 degrees out. Very happy with these windows and the installer. Do yourself a favor and make them one of the bids you get. Don't go with the companies that you see constantly advertised. They are good windows but FAR more expensive. I think you will be please with Vanguard windows and Colorado Window Source as your installer. Less

We would definitely recommend Colorado Window Source (CWS). We had 7 storm damaged windows replaced. Paolo D. came to our home, explained all of our options, and their great warranty. We had other estimates, but, after working with Paolo, we knew CWS was the company to go with. Jim and his great crew installed the windows today. They did a great job! Scott S. stopped by to check on the job to ensure we were happy with the work, which we are! Less

Colorado Window Source installed 23 windows in my home and did an amazing job. My sales consultant, Dave, was super helpful and involved in every step of the project. Our installer, Jim, and his crew were very professional and punctual. I was extremely pleased with their work. The owner, Scott, even came out to ensure that the job was getting done properly and to make sure I was satisfied. Thank you CWS for a job welll done!! I will definitely be referring you to family and friends!! Less

I did a lot of research into companies around Denver to replace our rear patio sliding door. I was happy to chose Colorado Window Source based on their high ratings, friendly professional staff, and use of quality products. They stand behind their work and materials as well as are prompt with all appointments/followups. The price was competitive and we truly love our new upgraded door! They are built in Loveland and when completed Tony came out to install it. He is a craftsman with attention to details and quality. I will post followup reports as they continue their one year inspection on the door and installation. A+ all around. I will be looking to these guys for further window upgrades in the near future. Less

We just had our windows replaced on Friday (3/4) and could not have been happier we chose Colorado Window Source. Paolo came to give us an estimate in December. He was very personable and professional and answered all of our questions. Our order came in quicker than expected and we booked our install shortly after. The installers arrived right around the time proposed and immediately got to work. Originally, the job was estimated to take about a day and a half - we had 11 windows and a sliding glass door replaced. The installers stayed until the job was finished on Friday. Our overall expectations were exceeded - I highly recommend Colorado Window Source. Less

About 7 years ago Colorado Window Source company replaced windows at my house. I had wonderful experience working with this company:high quality windows, on-time installation. But recently one of my windows got broken, and because I had lifetime warranty with the company, the window was replaced, and Ms, Theresa Fast from production department helped me nicely to get the window, that was broken. She called me back several times, to inform,the status of my replacement. I am very thankful to her for her efforts. Thank you, Luda Less

I had a hail claim and met with Steve about our windows. They were very easy to work with and provided us with an awesome window that priced comparably with what the insurance company was paying which was a huge worry for us. They were knowledgable and courteous which we appreciated. I had some poorly installed windows that where not part of my claim which needed work. The windows were measured wrong originally and I asked for a quote to redo the trip and flashing on the outside. The Rep stated that was not the appropriate action that needed to be done as the windows were the wrong size and covering up the gap would be considered poor workmanship and they would not attempt something like that. It would eventually lead to leaks etc. I stopped and thought for a second and came to the conclusion that these guys had a very strong pride of workmanship and instead of doing whatever to get my business they took a stand and I totally respected that. Other window companies that I had look at my windows all said they would redo some trim and add caulk to make me happy. I hired Colo Window Srce and the windows look awesome and we are very satisfied with our decision. Less

I would recommend Colorado Window Source without reservation. They replaced our windows, siding, roof, garage door, and gutters. Jose and his crew did a fabulous job on the James Hardie siding, with attention to detail and fine workmanship. There is a noticeable difference in the temperature in our home with the new Amerimax windows. Along the way, they ensured we were satisfied with all the work, and everything looks wonderful, Less

I highly recommend Colorado Window Source! From purchase, to installation, their service is stellar. They've got a great team and they care about people. They made sure to address every concern we had and provided solutions along the way. They worked to meet our schedule–which wasn't very flexible–and even coordinated with a third-party contractor that was installing siding on our home so they could get the windows installed at the right time for the best fit. Less