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    Performance Windows

    3.6 (51 reviews)
    Closed 9:00 am - 5:00 pm

    Get pricing & availability

    Response time

    2 days

    Response rate

    100%

    Services - Performance Windows

    Window installation

    Window replacement

    Performance Windows Photos

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    Recommended Reviews - Performance Windows

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    Reviews With Photos

    Salesman ring doorbell with three no solicitors signs

    Salespeople do not respect no solicitor no knock signs at homes were in my area l yesterday

    New Windows
    Heather G.

    We recently replaced several of our windows and it was a pleasure to work with Performance Windows. They had good communication, followed the initial timeline and were very professional.

    We had 4 windows replaced today and I'm so impressed. The workers were so nice, cleaned up meticulously, color matched paint to make a seamless install, and made sure I loved the windows in every aspect. My house is so much quieter, no dust coming in and on top of that they are BEAUTIFUL. So happy with the entire process from the first appointment with a sales rep to the workers leaving I highly recommend Performance Windows.

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    1 month ago

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    3 months ago

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    5 months ago

    Helpful 2
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    11 days ago

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    9 days ago

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    7 months ago

    Helpful 1
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    2 months ago

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    2 months ago

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    2 months ago

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    6 months ago

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    4 months ago

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    6 months ago

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    1 year ago

    Helpful 1
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    9 months ago

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    4 months ago

    The entire process from selection to installation was seamless. The windows are beautiful and the quality is exceptional.

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    8 months ago

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    9 months ago

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    1 year ago

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    5 months ago

    Installation was no-hassle, they did a great job and the quality of the windows are excellent

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    1 year ago

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    3 months ago

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    6 months ago

    My new windows look great. The install was quick. I plan to recommend these to my friends.

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    1 year ago

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    10 months ago

    The process was simple from start to finish and the window is great. We will use them again in the future.

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    8 months ago

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    2 years ago

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    1 year ago

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    1 year ago

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    2 years ago

    Helpful 5
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    10 months ago

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    1 year ago

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    2 years ago

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    2 years ago

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    2 years ago

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    2 years ago

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    Page 1 of 2

    Ask the Community - Performance Windows

    Review Highlights - Performance Windows

    . We just had a follow-up visit where they reviewed our lifetime warranty and made sure we were happy with everything (which we were)

    Mentioned in 3 reviews

    Read more highlights

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    Five Seasons Windows & Doors - We proudly serve  Cherry Hills Village, Greenwood Village, Boulder, Louisville, Golden, Genesee, Evergreen , Castle Pines, Bow Mar and more!

    Five Seasons Windows & Doors

    (76 reviews)

    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.

    WestPro Home Exteriors - How to check for roof hail damage? Get a free inspection with WestPro.

    WestPro Home Exteriors

    (18 reviews)

    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!

    Gravina's Window Center Of Littleton

    Gravina's Window Center Of Littleton

    (9 reviews)

    Northwest

    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.

    Performance Windows - windowsinstallation - Updated May 2026

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