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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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Lindsay Lewis
I don't remember ever having a more pleasant experience with a home improvement company, and working in real estate, that's saying something. Much to my relief, the sales process wasn't high pressured and the best part is this company actually delivered what was promised. Jason Lewis came to our home before our new siding was put on to make sure he had his team prepared for the project and followed through until it was completed to ensure we were satisfied. The whole thing was done in record tim... Read more
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Emily Garcia
We met with someone from Lifetime in August to hear information about their product and by the end of the meeting, decided that it was the right time & price for us to get new windows installed on our house. The windows were installed in September. The process was quick and painless. Everyone who we met with through Lifetime was professional and helpful. I expected that there would be a lot of dust from the installation, but our house looked untouched. We are extremely happy with the triple pan... Read more
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Tim Walton
All around a good choice. We had 11 windows replaced a few weeks ago, all of which were original windows from the 50's; the house is warmer, the furnace comes on less frequently, and the whole place has more of a modern feel. The workers were very friendly, and they were sure that we were satisfied with the job, and that we knew how to operate every function of the windows, including the full detachment for emergencies. They were in and out in one day, and cleaned up every trace.
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Carissa Westerfield
We have been pleased with both the windows and siding provided by Lifetime Windows and Siding, LLC. The windows have been easy to manage and we have noticed a significant decrease in our electricity bill since they were installed. Regarding the siding, the construction went well, and we have been pleased with the quality of this product. Lifetime Windows and Siding, LLC also provided a fair, if not lower, price for both products compared to quotes we received from other companies. Their cust... Read more
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Sam Franzen
I received ten new windows from Lifetime Windows and the whole process was very easy and I am very satisfied with the windows. Everyone I had contact with at Lifetime Windows was very informative and respectful. The person who came out to give me the original estimate was very informative. He explained the windows very well to a point where I understood what I was buying well enough to be comfortable buying them. The lady I spoke with throughout the scheduling process was very helpful and th... Read more