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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

2924 West 40th Avenue , Denver, CO, US
  • Infinity by Marvin: Ebony
  • James Hardie Siding: Primed
11576 Marshall Court , Westminster, CO, US
  • Anlin: White
  • Crane Board: Oceanside
  • Crane Board: White
101 South Cherry Street , Denver, CO, US
  • Infinity by Marvin: Ebony
  • Infinity by Marvin: White
  • James Hardie Siding: Arctic White
87 County Road , Granby, CO, US
  • James Hardie Siding: Primed
1122 Orange Place , Boulder, CO, US
  • James Hardie Siding: Arctic White

Customer Testimonials

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Doris Wigglesworth
I replaced the siding on two homes by using Lifetime Home Remodeling and James Hardy siding. From the beginning working with Eric as the sales rep, then Allen as the project manager, and then the installation crews, it has been extraordinary. My questions were promptly addressed, and all of my special requests were professionally completed. Allen always had time to speak with me to explain their process or facilitate the work. They also insured that the work would be completed by the time a se... Read more
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Pamela S
I purchased 2 windows and 2 sliding doors from Lifetime Windows and Doors (before they expanded). I chose them because my neighbor had a positive experience, the lifetime warranty, and the interest free financing. I want to start by saying that I am very happy the Infinity by Marvin product. My low rating is for the poor service I have received from Lifetime. My windows and doors were installed at the end of September. The screens did not fit and one was broken during installation. The locks on ... Read more
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Patti Rivera
Remodeled my primary bathroom shower tub combo. Very impressed with the quality of not only the product but the workmanship. We are very pleased with this company and would highly recommend them to anyone looking to remodel. We would like to give Max and Jessica a huge shout out!!! These two were only here for 5 days doing the remodel but they became part of our daily. They are great with communication and took us through every step of what they were doing each day. They had a plan and they ... Read more
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Ceci
Very, very happy with the bathroom remodeling project that was managed and installed with Lifetime home remodeling. The initial appointment setting was done professionally with Julia and she made sure that we had contact with our sales person When the remodel started Moe was amazing and took us through every step and was very conscientious on details and keeping things clean so dust would not get out of the area. Luis was also wonderful and a hard worker!The remodel took 4 days for tub remova... Read more
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Jason Gammage
Adam and Fabian were fantastic installers. They are very professional and personable. We love our new door and windows.