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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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Greg Anliker
Great service before & after the sale. Windows might be a little higher price than some competition, but you get what you pay for.
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5822fairytat
My husband and I are very happy with our purchase. Everything was very smooth and easy. I love the finance options as well. Will be purchasing our sliding doors from them as soon as windows are paid off. Highly recommend
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Andrea Eisen
I had all 28 windows in my house replaced by Lifetime. I went with the Marvin Infinity line. The entire experience from sales to installation to after care has been top notch. Their installers were all excellent, friendly and helpful. The windows came out so beautifully that people have actually knocked on my door to ask who did our windows. I had a small piece on my 8 foot slider come off and they were out to fix it 2 days later, no charge, no questions. The window themselves are so much mor...Read more
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Martin Weinberg
Lifetime Windows and Siding gets 5 Stars. From start to finish they have gone above and beyond my expectations. I live in a large condominium complex and the HOA have very stringent requirements for windows and their installation. Shon Romines their sales representative worked tirelessly for a month and a half to get approval for the windows. A technical problem arose when the trapezoid window in my unit was no longer being made by window manufactures .The HOA approved a right triangle window ...Read more
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Sarah Beckman
Lifetime did a good job with my roof replacement and solar installation. It was convenient that they did all the coordination and it was all with one company. They worked with my insurance company directly, which made it easy on me. We did have an issue with one item, but I reached out to Max who was my sales rep, and he helped fix the issue and get resolution. Overall, it was a very easy process with Lifetime Roof & Solar.