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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

6700 West Dorado Drive , Denver, CO, US
    4100 Mount Vernon Court , Fort Collins, CO, US
    • Anlin: White
    • Infinity: White
    12140 Bryant Street , Westminster, CO, US
    • Anlin: White
    14713 Josephine Street , Thornton, CO, US
    • Anlin: White
    24814 East 154th Circle , Brighton, CO, US
    • Infinity: White

    Customer Testimonials

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    Ginny C
    I got multiple estimates before deciding to go with Lifetime. My salesman, Matt Hale, was very patient with me in figuring out the configuration, color etc. By the time I committed to have Lifetime do the job, I was confident I was making the right choice. The Marvin windows were a great choice for me — and my installers, Adam and Fabian definitely provided top notch customer service. They did a beautiful job and left my home very clean. I could not be happier with Lifetime and with my new win... Read more
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    Tamara
    Excellent work and professional
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    Page Ballard
    Lifetime Doors and Windows is a phenomenal choice for windows! Their products are not only beautiful, but superior to others on the market. Their installation staff, especially Daniel and Bradley are the very best! I will absolutely use this quality company again and request both Daniel and Bradley as my installation team and Matt as my extremely knowledgeable sales associate!! Thank you so much for the wonderful addition to our home !
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    Gina Durbin
    Fabian and Adam were the best. They were very friendly, efficient and did a great job. Would highly recommend them😀
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    Jeff Brevik
    5 Stars – Excellent Service from Lifetime Windows and Doors! I recently had the pleasure of working with Michael and Marco for our window installation project, and I couldn’t be more impressed. From start to finish, these two were professional, great communicators,, and were genuinely great to work with. They arrived on time each day (3), explained everything clearly, and took on the job with great skill and attention to detail. I wish I had more windows to replace, It’s rare these days to fin... Read more