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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Rose Brainerd
My experience with Lifetime Windows had both good and bad moments. It started badly with salesman telling me it would take 2 months to get on their schedule (which fit my schedule perfectly) followed closely by a phone call saying they would start tomorrow! But I had already paid half so had to totally rearrange my schedule. Communication between salesman and installers was very lacking - installers knew nothing about work the salesman promised would be part of the job. As a result, installe... Read more
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Carol Grammater
The big plus of this experience was the installation crew....EXCELLENT!! Thank you to Freddy, Eric, Robert and Abel......you were polite, respectful, informative, and the hardest working guys we have hired in a very long time........we give YOU 5 stars Generally speaking we felt this experience was worthy of 3.5. Our main entry door is defective and will need to be replaced, one of our bedroom doors was not delivered, and one of the garage windows was measured/ordered wrong. We also had expla... Read more
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Krista H
Working with Lifetime Windows & Doors has been a great experience! Mary, Chris & George are awesome.
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Shawn Roller
Excellent professional install by Franky and Abel. Thank you!
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Brooklyn Norton
Robert, Eric, Frankie, and Able were awesome! They arrived promptly when they said they would. They were polite and courteous. After they installed my windows, they walked me through to look at all of them to make sure I was pleased with the work, which I was. Highly recommend Lifetime Windows!