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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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Todd S.
We solicited many window contractors for replacement window quotes for our home. We decided to go with Lifetime Remodeling as we like the Infinity by Marvin windows. They are a composite frame which is the best for the Arizona climate and the frame width is less than all of the others we had quoted so our glass area is HUGE! We could chose different interior frame colors and glass types for different rooms. The installation crew, Adam and Fabian, were very polite, protected each room they wor... Read more
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John Gigliotti
Marcos and Leo were very professional and explained everything quite well throughout window and door replacement process.They took great care in doing their jobs carefully and thoughtfully…They worked hard to clean up messes as well. Very good quality product..
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J Z
Just had my windows installed. My sales person was Steve. He was great, very communicative and appeared very genuine and honest. I was a horror story of getting my windows replaced with cheap vinyl windows by a random contractor 4.5 years ago. Steve was very helpful in deciding if this was the right decision or not. Then the installers, Ryan and Connor.. awesome! My house was really clean after their install. I was worried about the filth that would be left behind because my first install took 5... Read more
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Susan Sutherland
Working with Lifetime from start to finish was a positive experience. Their communication was excellent on every level. The installers of my James Hardie siding arrived promptly each day and worked diligently, no standing around. They were courteous and professional in their interaction with me. Clean up was thorough. The team amazingly completed the work in 4 days in very cold conditions. The siding looks tremendous! I recommend Lifetime Home Remodeling 100%
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Chuantao Zang
I recently had 9 windows installed by Lifetime, after being referred to them through Costco. While the Infinity window products themselves are excellent, the installation quality provided by Lifetime leaves much to be desired. During the installation, they built new wood frames for most of the windows. While some of these frames look well-finished and fit closely against both the window and the wall, others were poorly done. In several places, there are noticeable gaps between the new frames an... Read more