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!

Window Doctor just replaced 11 of our windows. We could not be happier with their professionalism…read morefrom start to finish. Derek came to give us a quote. He was very friendly and did an excellent job getting the project started. Joe and his crew came for installation. They were so courteous as well as wonderfully considerate of our dog and cats being careful not to let them out when coming in and out. They did a wonderful job the windows look and operate per and we couldnt be happier. Rare these days when something like this actually goes as well as it possibly could have. And to top it off their pricing was more fair than anyone we got quotes from. I would highly recommend them!

I live in the Harvey Park neighborhood of West Denver where the original 1950s windows are aluminum…read moreframe crank style windows that are very drafty and transfer outside noise into my home. JDI gave me outstanding options for replacing my windows at a great price. I did not get their premium windows. I just went for their second tier basic windows. The entire process from the initial consultation, measuring and ordering windows custom made for my home and installation was roughly 6 weeks. The owner who conducted the initial consultation, scheduler, crew foreman, and crew members were fast, efficient, cleaned up the demolition of the original windows beautifully and were very friendly. Some were even born and raised in the same neighborhood as me. I can't believe how nice these windows are, how they have improved the beauty, air tightness of my home for drafts, temperature changes and for outside ambient noise reduction. Their ease of use is outstanding. I can't say enough superlatives about JDI. I would give them 10 stars if I could. THANK YOU!!!!!

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.

Don't hesitate, call now!  Over the past seven years we replaced all of our windows.  We did this…read morein thirds:  The first and second time we went through Discount Windows and Siding.  This is when they were discount windows.  Since then their prices tripled which prompted us to shop around, obtaining estimates from four more window companies.  Enter Jay from 303 Windows.  What a breath of fresh air!  From the first call Jay was prompt, professional, courteous, VERY KNOWLEDGEABLE, reasonable, observant, and keen on details (he was the only window man in seven years who pointed out that the grids in our windows did not match the others).  He's a straight shooter who won't steer you in the wrong direction.  Any follow-up questions or concerns are immediately addressed and resolved.  Others may have had lower bids, but Jay's integrity and confidence won the day.    From start to finish, the measuring, estimating, ordering and installation went without one hiccup.  I'd like to talk more about the people (very good communicators and listeners) before I describe the windows.  Rick came out to do the measuring.  He was fast and efficient.  Five guys showed up on installation day:  John, the front man who had the sweetest disposition, explained what they were going to do and how they would do it.  Dan, the most energetic and spry person I've met to date, elected to be the one to install the window over my jetted tub because he was the lightest of the men and wanted to place the least amount of pressure standing on it.  Let me clarify that most of the work was done from the outside on all windows.  Upon meeting Vincent he quipped, "Nice to meet you".  I can't tell you the last time a young man has said that to me.  Two other men showed up as I was leaving for work do I did not get their names.  These five professional, hardworking and very competent men installed 9 windows in 4 hours.  As with any project, touch-ups were needed.  Both John and Dan asked me for my touch-up paint so they could leave my walls as they found them.  I was totally impressed with their caulk lines by the way.   The windows:  We hesitated 2 weeks putting our blinds back up because the windows are so darn pretty to look at.  Functional?  Hell yes and way better than the Discount Windows we currently have and those we've seen from other companies.  303 Windows have more sophisticated features such as an aluminum bar running the length of the window to remove the screen (instead of cheap plastic tabs that break), clean lines, curved locks that your fingers can easily manipulate, and an overall design that makes the windows look elegant.  They are both lightweight and durable, open and close without throwing your back out, secure, and help reduce noise.  In addition, all parts can be replaced such as latches, locks and security features vs replacing the entire window.   Since starting this journey seven years ago, we've had a great deal of estimates and salesmen at our house including Andersen, Champion, Home Depot, Lowes, Southwest, Affordable, and Gravina's along with other companies and contractors we have long since forgotten.  Oh the stories we could tell!  Save yourself the time and frustration.  Call 303 Windows now!  I wish we would have seven years ago!

Jay handled replacement of all our old windows and new windows and doors for our renovation…read moreproject. The windows came when promised and installed by his expert team. Jay, is also very honest. He came to look at the installation and realized that one of our window was the wrong color. He immediately let us know and ordered a new one. I would highly recommend Jay and his team to do you window and door project.

I've had WestPro come quote the same job twice, once in 2023 and once in 2025. It was two very…read moredifferent experiences to the point of being hard to believe it's the same company. The job is for removal and replacement of soffits, fascia, gutters and downspouts on a 1-story ranch with 200 linear feet of gutters. In 2023 a woman came out, did the walk through and then sent me a quote with details about the materials, a cost breakdown for each part of the project - quantity and cost for removal of gutters, removal of downspouts, installation of gutters, installation of downspouts. It was very professional (I work with contractors and job bids for a living) and provided all the necessary details of the cost. In 2023 they refused to address the soffit and fascia so I declined to move forward with them. In 2025 a man came out, did the walk through and then insisted on setting up a follow up appointment to walk through the project quote. I did not receive the info packet ahead of time and was disappointed by what I received - a detailed project description for siding work (presumably for the soffits and fascia but the material was specific to siding installation which isn't relevant to either of those locations) with no scoped quote for any aspect of the project. There were no details of the materials to be used or breakdown of the cost specifics. The dollar amounts were hand written into a spec sheet of "good / better / best" (photo attached because I don't even know what to call it, it's definitely not a job quote). I understand that materials costs have changed significantly and the job might cost more today than two years ago, but if you're going to waste my time with a second meeting to quote the job, actually quote the job. So your experience with WestPro may entirely depend upon the person you randomly end up with as your project coordinator. Homeowner be wary. I'll update this review when I've heard back with legit quotes and decisions on a path forward. For now it's a very unimpressed meh.

Appointment scheduled for estimate quickly. Project Consultant arrived on time, and was so helpful,…read morehonest and professional. Really appreciated the professional advice and prompt assistance!

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."

This is a great company. Kept me up to date. Completed on time. good work…read moreThis is a great company. Kept me up to date. Completed on time. good work

Ed and his crew were absolutely awesome from start to end! His attention to detail was superb! I…read moreinterviewed 4 other Basement Contractors and was most comfortable with him after seeing the work they did at another home. Ed was here daily, hands on......You will not be disappointed.....I Promise! Best in town!! Thank You ALOHA!!

Good local source in Applewood, Lakewood and Wheat Ridge. Dan has been serving the area for more…read morethat 25 years.

We have used Dan several times for window installations over the years…read more He is reliable and trust worthy, also his workers do professional installations. I highly recommend this small business.

Gravinas service was good. The installation was adequate, but they cut into the vapor barrier on…read morethe house which required extra work for the stucco guy later. Importantly, their product, Lincoln Windows and Doors are not a great company. The first door that was installed was not milled correctly and didn't fit, which delayed completion by 6 weeks. Further, Lincoln Windows and Doors ARE NOT QUALIFIED FOR THE ENERGY EFFICIENCY TAX CREDIT. Check to see if your product has a registered QMID! If not, NO CREDIT! Gravinas failed to disclose this important information.

Ordered windows and placed in my home about 13-14 years ago promised with lifetime guarantee, even…read morehave paperwork showing I have the lifetime guarantee. The windows have done well this far but I have one where the brick mold, part of the window frame, has cracked. Contacted gravinas 4 months ago. Spoke with owner who had me send a text with pictures and told me he would get this ordered. A month went by with nothing. Called and the warranty person there, Tausha, told me it never got ordered, then told me I don't have lifetime guarantee but a limited warranty, I stated nope, I have the paperwork to show this. Then she tells me factory won't cover this but will see what she can do. Then get an email saying they will get it ordered and installed. Months go by, appointments to install keep getting canceled by them, and this goes on for two months. Then finally after 4 months the window guy shows with weatherstripping in his hand! I said that is not what needs to be fixed, he agrees. Call Tausha who tries to tell me that factory recommends installing this weather stripping to avoid more cracking. Umm what? I said that is not what needs fixed and was told you had ordered the brick mold around the window. Her response is "you want the brick mold replaced?" Umm, yes, that's what is cracked! Then she tells me well the warranty doesn't cover that. lol I ask for the owner to speak with him. Puts me on hold for 5 minutes then comes back on saying the owner will call you and come out and look and you guys can talk about it. Great! Well owner has yet to call or show up. Don't get suckered by this company with promises of lifetime warranty just to sell you windows. They lie 1000%! I'm over them, I will fix the window myself or take it out and replace with something better. Worst company to deal with. Constantly lie to you.

We really enjoyed working with all the folks at Performance Windows: the appointment scheduler who…read moreknocked on our door, our salesman, the window measurer, and the install team. They have all been great!! We also LOVE the windows. They are so beautiful! They are easy to open/close and they block sound great! Our only regret is not replacing ALL the windows in our house. The Performance Windows not only function wonderfully but they give the house an upgraded look. We highly recommend Performance Windows.

So far, so good! I'd been wanting new windows for a while when Performance Windows stopped by our…read morehouse. While I don't love to usually entertain solicitors, they caught me on a good day. Amari was friendly and patient, walking us through the different options and offerings. I was sold! This was the third window quote I'd received, and I really appreciated the straightforward pricing and easy financing options. It took about three months from our initial meeting to installation. On install day, it was super cold and the crew worked efficiently, cleaned up quickly, and communicated well throughout the process. The supervisors kept us informed of their progress and were happy to answer any questions. It's only been a few days, but we haven't had any issues so far. I'd definitely recommend talking to Performance Windows if you're considering a window replacement.