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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Anna Thornton
The entire process was well managed by Mike Baumann throughout. This is how a business should be. No qualms about anything. Complete professionalism, prompt communication, knowledgeable and a friendliness that immediately put you at ease. The crew is highly experienced and professional leaving no details undone. They came in, and they went to work. They were courteous and friendly. Got the job done in a quick and efficient manner. Beginning with the project manager to the installation crew they ... Read more
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Cheryl Cooper
I can’t say enough good things about the staff I worked with. Extremely professional and always there to answer any questions we had. The windows are beautiful and really keep the noise of the outside out! I would definitely recommend them.
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Stefanie Loftice
I love my windows from lifetime. The crew did a wonderful job installing and cleaning up. The project manager Michael Baumann was so helpful in getting the job done in a timely manner. Thank you Lifetime.
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Kimberly Peters
The crew that came out to my house was amazing The project. Manager Mike Baumann was so courteous and kind answered all of my questions. I would recommend this company to anyone looking at getting windows.
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Stephen pointe
Had a great experience with Lifetime Windows and Siding for my exterior makeover. Couldn't have asked for a better team to work with!