Take a look at our past work!

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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Zach McClain
Great company, great service, and a great product! Lifetime installed 10 replacement windows in our house, as well as patched some holes in our siding. The new fiberglass windows are excellent, so much better than the old vinyl windows. The service was exceptional. Two of the windows had complications during installation due to issues with the frame not being square, and Lifetime came back and corrected the frames at no additional cost. Lifetime has always been responsive and helpful. I wo... Read more
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Nanette Stanley
Love the product and the service!
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Jazz Mimoun
Good follow through and customer service. We're very pleased with their customer service and products!
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Margi Walton
Jason, Kevin and G were a great team. Jason, was very thorough, a real pleasure to work with. His assistant Kevin was great as well. G and his installer were good, professional yet friendly. My home looks wonderful, an attractive facelift to an older structure. Thank you for a job well done. That was my original review, however , after more than a year and so many calls to customer service, I would not have them reside my dog’s house! My home sounds like a popcorn popper in the Colorado sun! I ... Read more
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Amanda Kirkpatrick
I would highly recommend Lifetime Roof & Solar. Everyone that we worked with there was professional and responsive and easy to work with. The work completed was very well done. When we had one additional request related to the work they completed it without issue.