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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Craig Swegle
I am a contractor, so I know good work and I know lousy work. I can see why non-contractors would be happy with Lifetime and leave good reviews - they say all the right things and then do a completely incompetent job. But a non-contractor would have no idea their work is so poor. They can get away with it because they slap siding and trim over their work super fast and you cannot see what they did is egregiously wrong. Criminal in my book. I have pictures and videos of all their lousy work. We ...Read more
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JPWhittier
An excellent experience all around. We want to thank Jason and his crew in particular for their exquisite work on the house. They completed the job in about a week and the house looks fantastic. They were extremely courteous and respectful of our work schedules during the process. Easily the best group of contractors we have ever worked with.
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Jeffrey Smith
Working with Lifetime Siding was a great experience. Quality work with no hassles. Thanks for everything.
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The History Chick
Peter replaced all of the windows and the sliding glass door at our previous house and he and his team did a fantastic job. We used to live right by I-25 and Peter assured us that replacing the windows would cut down on the highway noise. And it did! After the new windows went in it was completely silent inside. It’s a few years later now and I had a question about the windows in our new house... windows from the previous owner that Peter didn’t even install... And. He got right back to me...Read more
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Dorothy Cameron
Had my whole house re-sided and new windows and doors installed. Everything went well. No problems. Love my new look.