Take a look at our past work!

Lifetime Windows & Siding

Learn about us:



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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Google user
We’ve had our windows for a few years now, but after a bad hailstorm hit us we were left with damaged frames and torn screens. We called Lifetime and they immediately got us on the schedule for repair. So glad we got Mike. He came out during the hottest week of this year with all the fire smoke and high temps and didn’t complain. Mike was very patient with all of our questions and concerns, and he did a great job on the window repair. He went above and beyond, made the windows look nice, an... Read more
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Beau Cameron
Your typical door to door salesmen. Please, if my driveway is roped off because I just had my driveway seal coated, please do not walk on it next time to come sell me siding.
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Ron Chavez
The whole process was a great experience from the estimate with Mr. George Giraldes to the installation crew was very communicative. Would definitely recommend your services! Thanks again Lifetime!
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Katherine Lennon
Our bathroom was in complete disarray, there was no working shower or tub and honestly it was terrible. Our entire bathroom was empty. We’ve been so stingy with selecting a company and have been delaying it for years now. So finally, we decided to go with these guys. The rep for us was so sweet, explaining that he understood the situation and assure us about the quality and care they’d achieve. After waiting a little less than a month, and seeing the final results. I highly agree. They were ama... Read more
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Sandra Ornelas
We had our windows replaced two weeks ago and it has made such a difference in keeping our house cool. There was an issue with the sliding back door locking mechanism, so we called Lifetime and Mike H came over and fixed the issue in no time. He was also really helpful in showing us how to function the windows, and what to use if they got a bit stiff. Thank you!