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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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Michelle Ziemian
Lifetime is great! They installed my Infinity Sliding glass door and have also taken over the warranty service on my Infinity windows that were installed by another company who dropped the ball. I also had them adjust the position of a garden window during our kitchen renovation and it's perfect. The installers were even patient enough to wait when we unexpectedly needed to call a plumber to move a pipe that was in the way. I was amazed at their kindness and skill. I Highly recommend Lonnie ...Read more
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Milo Warner
Luis was excellent in reajusting the door lock and installing the door security bolt highly satisfied
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cie wewer
Had a great experience with Lifetime, I gave four stars only because the process took a very long time due to problems with the manufacturer. I had 7 windows, a sliding glass door and the entire house resided to a newly purchased home. The siding was done quickly and installed very well. The crew that did the installation, Javier and his crew were amazing. Javier is top notch. I can't hang Christmas lights on my siding because there are no gaps, anywhere, only the gaps between boards that s...Read more
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Mark Allen
We highly recommend Lifetime Windows and Siding. They are a great company to work with. We had a large project involving a 37 year old single family home we recently purchased as a rental property. The house was desperately in need of outside repair and a face lift including full replacement of the original siding, windows, trim, gutters, and paint. Based on great customer reviews and a quick response to our request for a quote, we choose Lifetime for the project. They offered very competitive p...Read more
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Curt Osborne
We just had our house entirely re-sided and trimmed out with James Hardie HardiePlank lap siding, HardieShingle for a gable end and HardieTrim trim boards top to bottom. The house looks great. These products are tough as nails. Lifetime Windows and Siding were great to work with and their crews were hard-working experts. Jason, Kevin and Jackie were all awesome to work with on a daily basis. Jason, in particular, provided excellent communication and follow-through every step of the way. I couldn...Read more