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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Juan Vigil
Update to this review: Lifetime came out and fixed the issue with the spray foam. Jon Stone was super friendly and completed the cleaning. It looks amazing and we are super happy with the outcome. I am changing the rating from 3 stars to 5 stars since he profusely apologized about the mess left from the original installers. Original Review: The process of purchasing our windows went smoothly. On the day of install, it was a little bit of a different story. The job took a lot longer than ...Read more
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Ken Shugg
Shower looks like a million dollars. they were efficient and on time and did amazing job on my shower.
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Ryan Daubert
I never used them but 5 stars for respecting a "no soliciting" sign
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Ande Havenar
From Brad at the home show, to Haley that came to our house, to Chris that measured the bath project, to Hallie that scheduled the job, to Mike and Casey that installed the project in ONE day. Everyone was friendly, helpful, and knowledgeable. A special shout out to installers Mike and Casey - their workmanship was so good it is hard to tell they spent a day working in our bathroom.
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Brent Bailey
Lifetime windows started our window project in July of 2023 and we were told it would take 3 weeks to complete the install of Marvin Infinity windows. The wrong size windows were ordered on several. A main window was broken on install. Two French doors were the wrong size and had to be reordered through Provia windows a doors. We still have one of the French doors that does not open without excessive force. The job started in July of 2023 and it is now mid-February of 2024. The company seems t...Read more