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 requested a formal contract from Gravina's for a full-frame window and sliding door replacement…read moreproject. The sales rep, Mark, provided a detailed itemized quote and answered initial spec questions promptly. When I mentioned that another vendor's quote was significantly lower and asked for a formal contract to compare, the rep declined to finalize the contract or calculate exact measurements unless I first shared the competing company's proposal. I explained that I don't share competitor quotes with any vendor, as a matter of fairness, and asked again for Gravina's own formal contract with their best price. I followed up twice over the following week, including a specific deadline for the contract, and received no contract or further response from the rep. I then forwarded the full email exchange directly to the sales director so the company could review it and respond if they chose to. That email also went unanswered. The initial consultation and product information were professional. However, despite being a ready buyer and giving the company multiple opportunities to follow through, I was unable to get a final contract at any level, and ultimately went with another company that provided a complete, firm proposal without conditions.

Mike and the team at Superior were really great to work with. We received quotes from 2 other…read morecompanies in the Denver area, but when Mike visited I knew they were the right fit for us. He felt both genuine and knowledgeable, and that proved out over the quoting process and engagement. While the wait for our windows took a little longer than we had hoped, Mike was really responsive and when the window did arrive installation was scheduled immediately. I'd wholeheartedly work with them again and recommend them to others!

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.

Rex is super cool, good dude. Window look great. No hiccups, just smooth sailing. Thanks!read more

Extreme disappointment regarding the quality and installation of the 18 Simonton windows I…read morepurchased from JDI. The overall product quality is unsatisfactory, and the installation was subpar. I continue to experience drafts and excessive noise through all the windows. The amount of noise I receive from planes (I live nowhere near an airport) and cars is crazy; it was never like this with my old builder grade windows. Furthermore, the caulking is very sloppy. The owner said he was ok with the work and threatened to place a lien on my property the day after the windows were installed if I didn't pay, even though I was not satisfied. Following the owner's suggestion, I completed a Home Energy Audit. I have attached a few photos from that audit which clearly demonstrate significant temperature differences. I have also attached videos demonstrating the air leakage using a fog machine.(I can't attach all the pictures and videos I have and would be happy to share) After I called the troubleshooter radio show, the owner sent a crew to insulate three of the windows that I felt were the worst (which helped a little). I was then asked to pay for the insulation of the remaining windows. It is unclear why new windows would be installed without proper spray foam insulation in the first place. Additionally, two of the windows still do not close or lock correctly, even after the sashes were replaced twice. Given my significant investment, this has been a regrettable experience.

Replacing Our Interior Doors From the start, Kale came to…read moreour home and gave the sales pitch of a lifetime, from selecting the style to the color and explaining the process from beginning to end. He shared that it would take about 4 to 6 weeks to receive the doors. In addition, being a military veteran, Kale ensured that we received a military discount. Several days later, another employee came and digitally measured all of the doors that were going to be replaced. The big door was going to be 96" across, which was for our den storage closet. He explained the process for this door and what to expect. Five weeks later, our doors were received and installed. The team of two came prepared and installed all the doors within three hours. Talk about professionalism! The doors finish was outstanding, and the black enhanced the white doors. The storage closet, which was 96 inches across, was awesome. One of our neighbors was looking at the work and wanted their phone number, which I gladly gave to them. Living in a retirement community, we do a lot of word-of-mouth referrals for our neighbors. And I'm gladly going to spread the word about this company and their excellent service.

Very hard to get a hold of ,Very Expensive doors,And when they did our doors in our home I felt…read morelike they were in a hurry they didn't really measure very well from top to bottom of the door then when my husband and I had them come back out to fix the door they installed that came off 3 weeks later.

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!

I was needing a relatively small piece of glass in order to help out a young family with a repair…read morefor their home. I called around looking for help from a few window repair companies. Most of those I called did not seem to interested in such a small project. However, when I called Window Doctor of Colorado, Chris was more than willing to help out! He cut me the piece I needed in a couple of days. When I went to pick it up, he told me he was happy to help and there would be no charge! That was not expected. There are very few companies that would demonstrate that kind of service from start to finish. An amazing company that is concerned with your needs!

When it's time to upgrade or update your storm doors, Denver Storm Door needs to be on your list…read more They're extremely professional, experts at what they do, and the team shows up on time and ready to go. We got an old security door and a problematic screen door that no handyman could install correctly replaced by DSD, and they did a great job on both. They remove your old doors, and they'll dispose of them too. You don't realize what a difference a modern, clean storm door can make on the look of your house until you do it, and then you wish you did it sooner. Not only does DSD use only high quality doors, they align them perfectly and make sure that they're calibrated to close at a speed that works for you and will securely keep your door closed. We used to have a significant draft on both our front and back doors, and our new storm doors fit so perfectly that those issues are completely gone. Also, the doors open and close quietly, while adding security to our home. Could not recommend these guys more. If you've been wondering if it's worth going outside of Lowes or Home Depot for a screen door, or you're looking to get a security door without spending a fortune, give Denver Storm Door a call. They are the perfect Goldilocks for most homeowners.

Called Cooper up to get storm door done. Really enjoyed doing business with Cooper! Showed up…read moreearly, professional, respectful of my property and cleaned up afterwards. Took the time to show me how the door works. The detailed report they sent over from the measurement appointment was perfect for HOA. Highly recommend this company, if I ever get another door put on, I know who to call. 10/10 recommend

Luis and Mario did an excellent job for me in less than four hours. His follow up from the initial…read morevisit was fantastic. Everything that he said, came to fruition in the timeline that he described for the installation and ordering the windows to the day they would be installed. Well done, thank you Kenny!

This company is a scam. They are taking deposits and saying they ordered your windows. But the day…read morebefore install, they text and say your windows were damaged during transport and there is nothing they can do. And then they refuse to give you back your deposit. DO NOT ORDER FROM THESE PEOPLE!

Look, I'm a repeat customer. We purchased two doors the summer of 2025. We live in Fort Collins and…read morefrankly we paid more because of the 1 hour drive to install in Fort Collins. Now understand, Secure All doors aren't cheap! They are the best door you can buy. I know. I owned another home a few years back in Denver and I bought 2 doors for that home also. I don't drop this much dough on a whim. You won't be disappointed in the doors or service. You will be a little poorer. These aren't Home Depot doors, you're not going to find these at Lowe's or Ace Hardware, these are Premium Security Doors not cheap junk! They do look great too!

Good morning. Lou, Secure All's owner, was awesome helping me resolve a damaged lock issue on our…read moresecurity door. He worked with me extensively in person and by phone. We exchanged texts and Lou patiently evaluated pictures of the damaged lock, that I ultimately resolved, thanks to his expertise. We have appreciated SA's doors in our home and office since 1984. Lou again demonstrated their high level of support and client service. Secure All and Lou Rock! Thank you.