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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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Scott Woodward
I bought my house in 2021 and the previous owners used Lifetime to install Marvin Infinity windows and James Hardie siding. In order to install a dog door I would’ve had to cut a hole in the Hardie board siding. Instead, I called Lifetime and Dave Thomas was able to create a plan for a custom window and the dog door to be installed in one of the existing floor to ceiling window frames. Normally, Lifetime doesn’t touch something like a dog door but they made an exception and totally delivered!...Read more
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Cody Spracklin
Kyla Simmons came to the house, showed up on time and was very professional, kind and easy to talk to. She was very knowledgeable, answered questions we had them (sometimes two and three times). She recommended products after we told her what our overall goals are. Her ability to listen and apply was amazing. Her correspondence and follow up has been top notch. We are still in the process of learning, getting quotes and asking questions before we make a final decision, but we definitely had to ...Read more
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Dardan Kosumi
We are generally weary of anything installers due to some bad experiences, but Jeremiah and Michael were absolutely flawless with a complete window and door replacement (all windows in the house and patio French door). Kind, respectful and hard working folks. 100+ degree 50% humidity and no complaints. Lifetime did a great job finding them and they did a fantastic job at our home. 10/10 would recommend!
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Mitra Kamali Artist
Chris did an awesome job explaining everything considering the windows and doors .đź‘Ť
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RITA Auch
Lady dog approved and says Virgel did a great job today!