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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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Kara Martinez
We had a very positive experience with Lifetime Windows & Siding replacing and installing four windows in our home. Tom, the sales representative, provided us with a thorough overview of the product and comparisons. He was engaging and readily answered our questions. He provided a straight-forward and fair quote, which was exactly what we paid. We were very pleased with the installation team's professionalism, their diligent work, ability to troubleshoot, and the end result. We are also very ple...Read more
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FDL Enterprises
Life Time was so easy to work with from Mickey, the salesman to the office staff to the installers. There was great communication from the office informing me when the windows were due in, when they arrived and then setting an install date that worked for both of us. When there was an error with one window they apologized and reordered a replacement. The installers were friendly and took great care to protect our furniture while they were in working and did a great job of hauling off the old win...Read more
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Cathy Dennerline
From sales to install everything was top shelf. Very pleased with everything.
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Alex Baumgartner
We are extremely happy with our windows and with the service Lifetime has provided. We recently had some service done by Justin, who was on time, efficient, and repaired our broken window seamlessly. Would definitely recommend Lifetime!
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Shirley Choulga
Lifetime Windows did a very good job for us. They were great at communicating with us and responding to questions. They worked with us on the implementation schedule. They were on time and did a good job of cleaning up afterwards. We are quite happy with the experience and our new windows.