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Lifetime Windows & Siding

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Lifetime Windows is a reputable window replacement and installation company with a strong presence in both Colorado (CO) and Arizona (AZ). With a commitment to providing top-quality products and exceptional customer service, Lifetime Windows has earned a stellar reputation in the industry. In Colorado, the company serves residents in Denver, Colorado Springs, and the surrounding areas, offering a wide range of energy-efficient windows tailored to the unique needs of the region's diverse climates. Whether it's combating the harsh winters or scorching summers, Lifetime Windows has the expertise to provide customers with windows that enhance the energy efficiency and aesthetic appeal of their homes. Their skilled team of professionals ensures a seamless installation process and stands behind their work with warranties that give homeowners peace of mind.


In Arizona, Lifetime Windows brings its expertise to cities like Phoenix, Tucson, and Scottsdale, catering to the specific challenges posed by the arid desert climate. They offer a variety of window options that help keep homes cool during the scorching summers while minimizing energy consumption. With a dedication to eco-friendliness and energy efficiency, the company provides residents in both Colorado and Arizona with a valuable solution for enhancing the comfort, beauty, and value of their homes. Whether you're looking to upgrade your windows in the Rocky Mountain state or the desert oasis, Lifetime Windows is a trusted choice for homeowners seeking premium window solutions in CO and AZ.

Our Work

16085 East Warren Place , Aurora, CO, US
  • Infinity: Bronze
Wyandot Street , Denver, CO, US
  • Anlin: White
15446 East Dorado Avenue , Centennial, CO, US
  • Anlin: White
2956 South Willow Street , Denver, CO, US
  • ProVia
13913 Fillmore Street , Thornton, CO, US
  • Infinity: White

Customer Testimonials

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Dan Durfee
Lifetime windows did my replacement windows & I used infinity series by Marvin, Les & his team were my installers & they did a great job. later he same year I had hail damage & it took out my roof & a few screens along with a few trim pieces that were aluminum I spoke with Rebecca about this & she sent out Jason the owner, he was very pleasant & insightful about how to go about repairs. He also said they could do the roof. I decided to let them do all the repairs & it turned out great. Jeff that...Read more
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Lisa Kautz
Lifetime did a great job with our windows. Obviously it’s not cheap, and that’s the big hang up always. But worth it. We had a non pressure sales person, and at first he tried to give us vinyl. I mentioned that’s probably not the best for longevity, so he offered a better product. We were able to get it custom colored, and loved how the color turned out. They did the measurements correctly, and the install actually went really well, all things considered. Lifetime did use a outside contractor fo...Read more
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David Hurlbut
Top notch product, employees and workmanship. Don't go anywhere else. Before and after shots below... Highly recommend!!!!
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Erin Lomax
Lifetime did a beautiful job with our windows and siding. We had a few unforeseen issues to deal with along the way, but the Lifetime team was responsive and worked with us to make the end product exactly what we wanted.
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Juliana Sams
Hands down the worst contractor experience we’ve ever had. We hired them after the hail storm from May of 2017 to do our siding and windows. Horrible communication. Shotty work. Days would go by, no call no show for work. We’ve had pieces of our siding fall down multiple times and we’ve had a hell of a time getting anyone to come back to fix their work. We’ve had contractors out since for other work and I’ve had at least 2 comment about different things that weren’t done properly and ask who di...Read more