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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Buzz Flint
We had the pleasure of meeting Rich Coats who arrived punctually to give us a quote. He was very knowledgeable about all details of the products Lifetime Windows and Doors sells. We found him to be very honest and truthful about the cost of our project which put us at ease that we were making an informed decision. We would recommend Rich to anyone considering a window and/or door replacement.
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Rozanne Encinias
Matthew Reed was an excellent sales consultant. He was very knowledgeable, professional and friendly. The windows were available much sooner than I expected and I was extremely satisfied with the work that the installation team did and the beauty and quality of the windows.
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Aaron Hernandez
Just had Richard coats out had a good experience guy is very well informed we made our choice
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Jennifer Hope
I really enjoy working with Rich, he is always happy and very knowledgeable in his trade. Every interaction with him has me feeling like I work with someone who loves what they do.
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Justin Watkins
Richard coats came out he was great he explained everything and answered all my questions.. I was very happy