I will absolutely use and recommend Window Doctor in the future. The owner and his team are great…read morepeople to work with and chat with. The process was incredibly easy and seamless. The windows look beautiful installed, the install and surrounding areas are clean and tidy, and the team is professional. I got a handful of quotes and Window Doctor beat them all on price, lead time, quality reviews, and knowledge (such as needing tempered glass near entry ways to be up to code). Each window has an individual QR code to scan if service is needed in the future, which I find to be nifty. Overall an incredible local Denver family company to work with!

We had a fantastic experience with The Window Doctor! We just moved into a new home where the…read moresliding glass door had a dog door which we didn't want. We had the old glass and they were able to schedule us and replace it quickly. We were considering getting a whole new door which would have cost $4,000, but we paid a fraction of that and it was SO worth it. Highly recommend using them!

We hired Five Seasons last year to replace most of our windows for our home. Some of our windows…read morewere fairly large, and we also had two sliding glass doors replaced. So, this was a big project and we were very nervous as it was our first time doing this. From the start, we were impressed by the sales process. They went over our preferences and needs multiple times, made many iterations, and finally, we settled on the windows to replace, the style, the amount of sun filtering, etc. We chose Marvin windows as the window manufacturer, and Five Seasons then handled the installation. Now that it's been a year, we can say that Five Seasons supports their work really well. We had some problems with the hardware side of some of our Marvin windows and doors. It wasn't anything major, but things that should have been working properly. Dylan and Makayla provided exceptional support and actually rebuilt our sliding glass door locks for us, and since they did their work, the door locks have been working perfectly. The window installers, under Mike, did a great job installing windows that were large and in difficult locations. We have now had a year to see how they have held up to wind, rain, and cold weather and they are doing great. We are glad we went with Five Seasons. They were reasonably priced, installed the windows when scheduled, and have been providing excellent support.

I was very pleased with the process and the ease of getting communication and pricing. I will…read moreupdate review after my consultation.

After having experiencing contractors in the past that had left us feeling frustrated, disappointed…read moreand taken advantage of... It has been a breath of fresh air to work with Gravina's Window Center of Littleton. We had tried going the route of "finding a great deal" in the past, only to discover cheap is expensive in the long run, and our "deals" had left us with poor quality products and even worse quality workmanship. We decided this time around we would research and interview for all of the projects we were about to begin - this time it would be about finding the best value for our money, professionalism, quality and workmanship. Our first meeting with Gravina's was to look into replacing a few basement windows. After meeting with Jim Gravina, Mike Gravina and Justin Shyong - loving their energy, knowledge and ideas - we decided to have them replace the windows in the basement and replace our back patio doors. I can't begin to express how excited we were to see the finished project - the back door had become a favorite focal point of our home! Once we had actually seen, and experienced the difference with the windows, door and workmanship from Gravina's, it was a "no-brainer" to have them handle "phase two"... siding our garage and replacing the garage windows. Again, everything was awesome! Knowing that our James Hardy siding was done according to all of the proper guidelines of the product was important to us. Of course, with everything going better than we could have expected, I can honestly say, we were excited to hire Gravina's again for "phase three"... replacing the windows and front entry door on our main level (the remainder of the house), they continued to exceed our expectations and we are absolutely ecstatic about everything! John Gravina and his crew did an incredible job with our window & door installation, as well as Wynette & Samantha who had come back to do perfect staining of the interior windows, door and casings to match the hardwood floors in our home. It seems a little strange to say I was excited to work with a contractor - because I think many of us have experienced that nightmare of having someone in your home and just praying for the day they will leave - but the peace of mind knowing that things are going to be completed right, all of the proper follow thru will be done, having qualified and respectful people working in your home, knowing that you have a company you can trust, and knowing you will have beautiful windows, doors and siding to enjoy for years to come, is something to be excited about! Upon writing this review, I have reached out to Gravina's to let them know if they have a client that would like to see the work they have performed at our home, they are welcome to schedule a time with me to bring them by (this is something that we have only offered to do with Gravina's and Luxescapes, the landscape/hardscape company we worked with on our backyard that was also incredible). Because I don't want to post my personal contact information over the internet, if you wish to call me regarding our experience with Gravina's, you are welcome to get my number from Gravina's. If you are looking for windows, doors or siding, I would highly recommend contacting Jim, Mike or Justin to come by... you will not be disappointed! We hope you will find this information helpful in your search for a qualified contractor for your project! ~ Kevin & Jeri-Lynn ~

I would love to be able to give zero stars…read more I will not be recomending Gravinas to anyone I know. We needed to get a quote for a couple of windows that needed to be replaced due to being damaged, and covered under insuance. We had a consultation at the house and were told we would recieve a quote in a couple days. We did not recieve a quote, which lead to us calling and leaving 5 messages with Chrissy. On the 6th call we finally got a hold of her, to then be told that the windows we were needing replaced would not be a match for insurance (which was never conveyed at the walkthrough of the house) and that it would be more expensive than what we had. I then asked if we could still get a breakdown of the quote to understand the differences. Chrissy proceeded to list numbers for a full install over the phone of an all inclusive package. When I asked for a breakdown of the pricing to fully grasp the whole package, she questioned whether we would really want to spend $3,500 per window and implied we could not afford it. Needless to say, it felt incredibly rude and condesending and we will not be giving Gravinas any business.

I can't say enough good things about this company! I was a little nervous due to lack of reviews…read morebut I couldn't have been more wrong. I got quotes from ten well known, well reviewed window companies in the Littleton area and Thibault was by far the most responsive, no-nonsense and respectful of my time professional out there. As a female homeowner, I really appreciate not having to sit through a condescending two hour high pressure sales pitch. I know what I want, please just give me a fair price. Thibault did just that, while being extremely knowledgeable, and the pricing was fantastic as well. I am affiliated in no way with this company and truly blown away by their customer service. Highly recommend!

I love KS!! Great prices and service. I've never had a bad experience. If you can't find something…read morethen they find it for you.

We were looking to replace our 28-year-old, builder-grade siding that was showing signs of water…read moreretention. After getting four quotes, I came to realize that each company pretty much has one type of siding they recommend and install. For one company we interviewed it was LP (engineered wood), for two companies it was Hardie (fiber cement), and for the last company, Superior Industries, it was a material we hadn't heard of before: Gentek ALIGN Composite Cladding (aka Alside ASCEND Composite Cladding). I was initially skeptical because I hadn't come across it in my research. How good could it be? Turns out, amazing. Really glad I called Mike to come take a look, as otherwise we would have ended up spending a lot more to get a not-quite-as-good product. Superior Industries replaced all of our siding, soffits, and facia, and aluminum-wrapped all new trim boards for us. They did precise, high-quality work and it really shows. Communication was good throughout and the guys who did the work were friendly and competent. Mike only has a couple teams, so these guys have been with him for many years and really know their stuff. They listened to everything I had to say, they consulted me when there were any decisions to be made, and they answered all my questions. Everything looks great and we are very pleased.

Inferior Product Installed…read more I needed new windows for a remodel I am doing in my daughter's condo. I contacted Superior Industries for one of three quotes I received. Mike came to respresent Superior. Mike and I discussed in detail about the color of the windows. I probably told Mike at least a dozen times "I need brown windows," "The windows must be brown." Not once did Mike speak up to tell me the windows he had in mind would be white inside. I fully expected the windows to be brown inside and out. Mike emailed me a work order where he added "white inside" to the description of the windows. I didn't notice this detail in the work order, but at the same time, I did not approve or sign-off on this work order. I approved the install solely on the promise of brown windows at a quoted price of $11,262. What business person would believe that simply sending out a work order, with no sign-off by the customer, indicates acceptance by the customer? The windows Superior installed are much cheaper windows than all-brown windows would have been. I accepted their quote believing I would get all brown windows. Quotes from the other vendors indicate brown and white windows sell for three to four thousand dollars less than all brown windows. I overpaid by three to four thousand dollars! I entered into agreement with Superior in good faith. I did not get respect or good faith in return. Instead, I got an inferior product where a much better product was promised. I will never do business with this company again. Update to Mike's response: What contract? A contract is a document where both parties sign-off agreeing to the terms of the contract. My signature does not appear on any such document. The email Mike references approves only the quote based on a promise of seven brown windows. I never approved the work order via email. I challenge Mike to post here any proof that I signed-off or otherwise approved the terms of his "work order."

The quality of the windows has been great so far. The install team, Dan & Hannah were great.read more

The process was easy from ordering to measuring to installation. They did a great job…read morecommunicating. They did a great job with the install, as well. Nice guys, worked pretty quick, and it looked good when they were done.

Very professional and good communication, also worked with my schedule and even moving around the…read moreappointment. The glass took longer than expected to come in but was a fair price and it is holding up very well!

This is a terrific company! When I needed work looked at for my windows, a number of other…read morecompanies wanted to sell me new windows without even looking at mine. The repairperson came to my home and fixed my window in 5min. Unreal. I would recommend them to anyone and will bring future projects to them.

Selecting Paramount Siding & Windows for our window project was the absolute best decision!…read more *Sue in the office is super sweet, professional and responsive. *Scott came to our home for the sales pitch but is wasn't salesy at all! We had a great conversation, we walked through the house, what we were looking to do and he made recommendations that fit our needs. He was highly responsive and submitted a proposal quickly. Best price and value from everyone we talked to! *Jon came out to do measurements and take video for the install team. Another great experience! He was thorough, asked additional questions, set ther install team up for success and set our expectations. *Install was a breeze! We had an amazing team who came in and made the magic happen over 3 days. Day one was old windows out, new windows in. They were methodical, detail oriented and the moved so seamlessly! Day two was outside details and day three was inside details. The disruption was much less than we imagined. New windows are a significant financial investment and Paramount was easily the best decision for our investment!

We have used paramount a few different times and couldn't be happier. From the sales person to the…read moreinstaller, everything was top notch!