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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Keri FitzPatrick
EVERY staff member we worked with has been exceptionally professional and skilled in their area of expertise. Dave T was amazing helping us select the windows and design the grids, Lonnie and his team (JD, et al) did a great job with installation of the windows and doors, Brandon, Callum and Gary did a great job on the finish work and creating the right color of stain to match the mountain contemporary feel we were aiming for. Administratively, Rebecca was great with scheduling and communication... Read more
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Barbara Kaptanian
Most outstanding with this contractor was the degree of professionalism and standing behind the workmanship, the materials, and the promise of the finished product. Once the project was started, it was most efficiently brought to completion without a hitch. All questions and concerns were addressed to my satisfaction and I am fully confident Lifetime will live up to their guarantees. The project manager with the siding division, Jason VanRemortel, truly held the project together and saw that ev... Read more
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Barbara & Patrick Wallace
It was a pleasure to work with them. They were very much on top of the project and completed it on time and in great condition.
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Kevin Bommer (K Bomb)
Thanks to the gang at Lifetime Windows and Siding for turning my boring bilevel house into what looks like a new build. I appreciate their customer service, attention to detail, immediately correcting any mistakes, and excellent communication. I am 100% satisfied with the results!
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D. K. W.
My house was built in 1958, having said that, my double sliding door window was busted and I wanted to replace it with french doors. Freddie and Raphael brought the door and set it in. Due to settling in the foundation it was a chore, but the two of them got it in, trimmed it, and made it look beautiful. Thanks again Freddie, Raphael and All of you at Lifetime.