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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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Mrs. Bidwell
In the 2016 Hailstorm, I had five windows installed. I would recommend this company for future purchasing of windows. I have had a few issues, but this company has been restructuring and making improvements. I have always been talked to with respect which is important when any customer has a issue. This is my second time getting windows from Lifetime. My window crew, Jeffry and Valance , did a wonderful job installing my last window which was a problem window. Their district manager Lonn...Read more
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John Kosienski
I had a great experience with Lifetime Windows. The quote was for 6 windows, though only wanted to install the 3 downstairs windows initially. Was told that I was able to have the 3 windows installed and the quote would remain the same when I was ready to install the remaining windows. I really enjoyed the flexibility of the quote.
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jookamoo
The folks at lifetime were extremely nice and friendly. Windows came much faster than at first thought. When they installed the windows there was a nightlight missing but they came and replaced it.
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Shane McKenna
Had a nasty hail storm and had to replace 5 Windows. Heard their ad on the radio and they lived up to everything they claimed to be. What scares me the most about home improvement companies are their estimates. Lifetime was right on the mark and they came in and replaced my windows in a timely manner. Their windows look 10 times better than the builder grade windows that were put in my house. I've lived in my house for 15 years and I need my other windows replaced. I'm making one more call ...Read more
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Lara Geary
I recently got all my windows replaced in my home with Marvin windows. When I requested for a sales person to come out to look at my windows and give me an estimate, Dave Thomas came to my home and was very pleasant and patient with me. He explained to me what the differences were between vinyl and his fiberglass products. Marvin windows are fiberglass and that's what makes them so energy efficient. I am so happy with my windows! Lifetime provided excellent customer service from the initial sale...Read more