Take a look at our past work!

Lifetime Windows & Siding

Learn about us:



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

Reviewer photo
Halley Coplin
We replaced all of the windows in our house. The install itself was fast and relatively pain free, which is why this is a 2 star instead of a 1 star review. However, the windows themselves are awful, to the point where we feel swindled. In the winter months after install, we noticed they seemed drafty, and we can hear literally everything happening outside. That feeling was validated when doing our taxes this year, as we had to pull the specific energy rating information and realized that the wi... Read more
Reviewer photo
Not Me
We had Marvin windows installed on April 29–30, and the experience was excellent. The installation team, Marcos and Lenard (sp?), provided a professional, efficient, and timely installation. They arrived as scheduled, worked diligently, and completed the project on time. The quality of their workmanship was evident throughout, and they left the area clean and tidy. We’re very satisfied with our new Marvin windows and highly recommend this team for any window installation needs.
Reviewer photo
LeeSoon Nelson
We had Marvin windows installed on April 29–30, and the experience was excellent. The installation team, Marcos and Lenard (sp?), provided a professional, efficient, and timely installation. They arrived as scheduled, worked diligently, and completed the project on time. The quality of their workmanship was evident throughout, and they left the area clean and tidy. We’re very satisfied with our new Marvin windows and highly recommend this team for any window installation needs.
Reviewer photo
Stacey K
Our experience with Lifetime has been excellent. From the first meeting with the sales person, April, through the installation of our new windows with Micheal and Marco, the process was completely smooth! Michael and Marco were very professional and respectful, and detail oriented. They did an amazing job!
Reviewer photo
Ellen Calodney
Michael Riggs and Marco Quintana did an outstanding job of installing our windows. They were so polite and helpful. We love our new windows. Could not be happier. Best company we have ever dealt with. Showed up on time, too.