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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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David Burnell
Just had new windows and a patio door replaced. What a great improvement over our original single pane windows. The area with the new windows is NOTICEABLY cooler and we can now leave the window coverings off to enjoy the views to our backyard. Windows and door are beautiful and much more functionable than our old ones. The installation went smoothly and on time. Our installers, Luis and Adam were both courteous, helpful and meticulous during the installation and cleanup. Couldn't be more pleas... Read more
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William Dirkes
We had 15 windows replaced (2 were lengthened) and a new large picture window installed. The process and service has been great. Josh and his team got it all done in two days. They were tidy and efficient. There were a few minor service issues but Michael was very responsive and took care of a few minor issues we didn't even see. The whole team was very good at communicating and took care of everything from start to finish.
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Jr Black
Mike H. Was great, he explained the work he was going to do, he did it in a timely manner and left the area very clean. Also explained things to watch out for.
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Alicia Peek
I am not satisfied with any human interactions I have had with Lifetime, as for the product, that is still to be determined. Upon my initial call to schedule my consultation, the Lifetime rep on the phone, multiple times, insinuated that because I am a female I don't have the authority to make the decisions in my household despite my multiple comments that I am the homeowner and the only decision maker, however he kept pressing that I should have a male counterpart present to help me make the de... Read more
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Eric Johnson
I originally wanted a full service bath remodel and should have stuck to that. The installers pointed out some issues with the floor around the shower being moldy due to water leaking into the floor but didn’t say anything at all about the drywall around the shower having the same issue. So they installed the shower but didn’t replace water damaged drywall in the vicinity of the shower or notify me about the problem. Now I get to fix that along with the floor. I’m doing that work myself but ... Read more