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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Andrew Licare
This company came knocking on my door despite there being a large sign that says No Soliciting - Do Not Knock or Ring Bell. Why would anyone want to do business with a company that cannot oblige a simple request? If this is how you conduct yourselves to get the job, I can only imagine how you operate once you have it. Not to mention, any company that needs to go door to door reeks of desperation. The best companies will have a waiting list and not need to harass anyone to drum up business.
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Jonathan Nye
Anthony came out earlier today in an attempt to resolve an ongoing issue with one of our windows, and I cannot tell you how happy we are with his work ethic and professionalism. The issue has been an ongoing issue for a year plus, and he was relentless, not giving up until it was fixed. Thank you Anthony, you are a rockstar!!
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Jack A. Maxwell
Mike and Darian M. called to let me know they were on the way. They were courteous and professional, covering the floor with a mat in their work area then made sure the keys worked and I was happy with the operation of the sliding door. Excellent products and exceptional customer service. Thanks!
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Linda Yokota
Got replacement windows & patio door from Lifetime Windows last year. We've been so pleased with the product and everyone from Lifetime that we've worked with. Recently needed a few adjustments. Darian M and Mike (Technicians) came today. Not only did they telephone to let us know they were available earlier for our appointment, but they were professional, polite, personable, knowledgeable and quick. Our issues were minor, but they were addressed with precision. It made having to deal with a ser...Read more
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Tim Halligan
Screen frame was damaged. Darian and Michael showed up on time, went straight to work, and made repairs on site. Thirty minutes the frame was repaired back in place. Both were friendly and professional. Far better than anticipated ordering a new screen waiting who knows how long.