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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James Peterka
This a small but important miss by Lifetime- they should have 5 stars for this. The crew that showed up hit a grand slam on the workmanship- seriously one of the best I have seen. The problem was that they showed up on time (project manager came an hour later) and they didn’t speak English. We worked together through a translator to get them started. Once the PM showed up he filled the crew in on the rest of the job. As a customer we shouldn’t be doing to job we are paying for- otherwise, why di...Read more
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David Deen
Lifetime just finished replacing the last window in our house. It's taken a few years to replace them a little at a time, but Lifetime has been great (and patient) the whole way through. We made the mistake of going with a door company to replace our old sliding glass doors, but we should have stuck with Lifetime for them, too.
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matthew bergman
Great company.
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Pamela Turner
Lifetime is very easy to work with. They show up on time and are very respectful of your property. Justin was especially good to work with.
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Linda Marshall
Jacob was prompt and very efficient, completing the finishing work with expertise. A very friendly person as well. Thanks to Jacob, the installation of our windows is now completed to our satisfaction.