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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Liz Steiner
The entire team at Lifetime literally left our house better than they found it. From the helpful customer care concierge, Marina Valdes, who was always there to answer any question, to the the window replacement team who were literally done in less than a day; he vinyl siding team who worked diligently and took less than week, and the gutter crew that refigured our gutters more efficiently. WELL done!! We can already tell a difference in the heating and electric bills, as well as consistent tem...Read more
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Carrie Hall
Denis came out and was an amazing help. He walked me through everything and was very professional. I’m very pleased with all that he did for me and my house.
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David Loeffler
This company's Project Manager, Denis Pearse, came out to my home for a roof inspection. He was on time, knowledgeable, and professional. I will reach out to this company when the time comes for a roof replacement.
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Matt De Shon
Denis checked out my roof. Ultimately, I did not wind up needing one, but will be using these guys if and when the time comes. Pretty nice that they were straight shooters!
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denham gardener
Love when company doesn’t pressure you and consultant Mickey A was great. Wife had to leave early and left me with brochures to make final decisions with her. Explained everything, just need to make a few choices.