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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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Debra Williamson
I met with Richard Coats this evening, who gave me a quote to replace the original windows on my home built in 1952. He was very knowledgeable and took the time to go over all the details for my replacements. I really wasn’t ready to move forward with this project yet, but after going over everything I decided to move ahead. Richard was very professional and able to answer all my questions. I can’t wait to get my new windows!
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Tracy Baltzell
Just had Richard Coats, Design Consultant out to finalize our window purchase. Richard has been really great to work with and so easy going with the whole process. Can't wait until the windows are made and installed. Thanks Richard!
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Cheryl A
The experience my husband and I had with Lifetime Windows & Doors personnel has been positive and pleasant! It was especially evident when we had the initial home visit with their consultant Richard C. He was a gentleman who thoroughly informed us and brought samples to show how the materials and installation method they use are of true quality and efficiency for our Arizona home. The knowledge we gained was valuable and appreciated for the new windows and doors replacement. It is an invest...Read more
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Mark Wilcop
Lifetime Windows and Siding did a fantastic job installing my Infinity Windows by Marvin. Their post installation service is also outstanding! Darian Manzanares came today for a minor service call. He was on-time, professional, and had my repair completed quickly. Highly recommend Lifetime before, during, and after purchase of our windows. Will definitely use them when replace our doors! Thanks, Lifetime!
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VANESSA CASILLAS
I met with the coolest salesman the other day from Lifetime Windows & Doors. His name was Richard Coats. His excitment over the quality of window he sells was so genuine it got me excited about the windows. I can tell he believes in his windows. After learning about the Marvin windows from Rich, I saw first hand how much better quality of window Marvin has than there competitors. I had my house bid out by 3 different dealers, one salesman was actually rude, condescending and didn't want to...Read more