Take a look at our past work!

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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Sonny Halderman
***DO NOT USE THIS COMPANY*** Placed order with this company on 10/4/2019 for two exterior patio doors. They told me it would be 4-6 weeks before they would receive the doors. Some how they ordered the wrong door, it was caught and what they left off required an additional two weeks. Requested update in November still waiting on manufacturer. Requested update in December and was told that the glass in one of doors glass was broken and they are trying to get an ETA from the manufacturer. The repl... Read more
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Monica Cox
Great customer service from sales guy, guy who came out to measure and installation team. All were great to work with.We had 3 windows replaced 2 were very large and on 2nd floor. Windows are so nice.They were in an out in about 2 hrs. No damage to siding or walls just some touch up paint needed. I wish I could have done my whole house. We just bought and have other things to fix or we would have. Will use again.
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Sharyn Mathieu
Very friendly people who answer all your questions. They send a representative out to check things over before and after. Their sales woman was personable and informative. The windows look awesome! Mine keep out any outside noise too!
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Mary Ann K
Lifetime did a great job - in particular Luis Valleyes (sorry if mis-spelled) worked to make sure all was done in a grade A way including working with me on replacing one of the screen doors and a number of other punch list items. Great Job, Luis! -- and rest of Lifetime Team too.
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Mackinzey Colonius
We had an excellent experience and the windows made an immediate difference in our drafty old house. Woody was great to work with and the team was organized, responsive and actually quite funny ;)