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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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Bruno Benedini
Extremely happy with all the work that Lifetime completed (full replacement of siding and trim). They were competitive in their pricing, their crews worked diligently and the whole project was very well-managed. Project managers Jason and Kevin stopped by and called multiple times to make sure I knew where they were in the process and what would be happening next. And they were quick to acknowledge and address any issues or problems that came up, as well--something that seems rare nowadays. 50-...Read more
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Robert Buzzard
This has been the most professional company that I have experienced in 70 years. They have the old fashion values, that was a part of the fiber, that made America great. Craftsmanship, cleanliness, integrity from the sales purchase to the final installation was impeccable. You can't go wrong with them. Don't be fooled by the low cost scams out there.
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James Burke
Jeff was great to work with. My insurance company claim experience was less than stellar but Lifetime was able to make sure I got a new roof instead of a partial repair. They even upgraded my ventilation and repaired a skylight for free. Overall great experience.
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Stephen Kappenman
From beginning to end, from sales to installation, everyone was professional, personable and efficient.
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Betsy Wheeler
From start to finish this was a great experience. I was kept informed throughout the entire process. Each customer service representative from the sales to final installation was professional and courteous and answered all of my questions. I would highly reccomend this company to family and friends.