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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AA III (Double A)
Richard Cotes came out and did an awesome job showing me different products and pricing me out!
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Tom Reardon
Just had Richard coats out. Great guy and super presentation. Very informative. Both my wife and I are impressed with your company and your representative.
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miranda materi
Richard Coats showed up on time. Very professional and great pricing.
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Penny Dardaris
Jason, Dallin, and Brandon were exceptional though the young man Brandon does not follow directions or the lead of his experienced workers. Brandon cut wood incorrectly a couple of times, he would not truly listen even to Shawn Bazzy. I would truly recommend him to be guided and closely watched as he tends to half listen which leads to mistakes to follow with his attitude when corrected.The respect he could learn from both Jason and Dallin would be a great asset for the next customer. My husband...Read more
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Mason Moriarty
The windows actually came out great for what it’s worth. But my issue is the sales rep Matt told us we didn’t have to make a payment on our loan, all we had to do was pay it off by the end of the two year loan period. Fast forward to now a collections person calls me to tell me I’m behind on my monthly payments… screw this company. The loan the gave me had a 18% interest rate. Back when we did the windows I would have qualified for way below half that for a personal loan. Predatory tactics. Lite...Read more