Take a look at our past work!

Lifetime Windows & Siding

Learn about us:



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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Joe Gajewski
Very Nice Windows, excellent installation. Very Happy with Lifetime and will probably redo more windows with them. Robert and Eric are excellent installers.
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Sarah Smith
Great experience with every point of contact! Very happy with their customer service, quality of workmanship, and our amazing new picture window!
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Kent Adamson
Love my new windows, the crew that did the install were great !! Would definitely recommend Lifetime
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Denice Barclay
Robert and Eric were both professionals, they did a great job at being careful by covering everything before getting started. It was nice to have Robert and Eric there because they replacemed our back of the house windows prior and was familiar with job. We are very happy with the end results of the front of the house, looks beautiful!!
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Derek Cozzens
Great customer service, competitive pricing, and a great installation. I highly recommend this company if you want high quality windows.