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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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R P
Our experience with Lifetime was nothing short of a nightmare. The whole process for a single-story board and batten siding job and gutters took nearly 5 months. The first crew did a horrendous job, including but not limited to: putting up the wrong siding, uneven battens, vent holes not cut out, and pitching the gutters toward the house. The project manager never showed up to the site. In addition, their crew ruined our brand new roof, left our property an unsafe mess and broke items. First...Read more
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Fred Elms
Our installation crew of JB, JD, Sam, Drake, and Jeremy all did an outstanding job. Every issue was addressed in a prompt and courteous manner. JB, project manger, treated our home like he was putting windows in his own home. JD lead his team with respect and expected nothing less than a first rate job from each of them. Sam, Jeremy, and Drake are meticulous and truly excellent craftsman along with JD. Sweet windows and awesome job. Thanks you guys. And thank you Dave Thomas for selling us on ...Read more
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Joe Kaliher
Lifetime redid our siding and basement windows. Jason and Carl did an outstanding job on our house! They put in long hours every day to get our house done before winter started. They were personable and very friendly. Lifetime helped walk us through the entire process and make recommendations to help our home turn into our dream home. We had multiple companies bid for the project , and Lifetime was the best option by far. We love the new look of our home. I highly recommend Lifetime for any sid...Read more
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Karen Shilgalis
The folks at LifeTime Windows did a wonderful job ordering, measuring and installing five replacement Marvin Infinity windows. Max got in touch with me right away and came out on a Saturday to measure and quote the job. Mike did the actual measuring and they were all a perfect fit, so Sean and Cory’s job of installing went smoothly. JB, the project manager came while they were installing and answered all my questions about removing the screens. Brandon’s staining crew came three weeks later. C...Read more
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Andrew Dorsch
Can’t say enough good things about the installation crew. Victor and Max did an amazing job residing our house. They pay attention to detail and even sent back a few pieces that didn’t color match perfectly. I will definitely be requesting them again when I decide to side the garage. Our project managerJason was also great at communicating every step and helped us save some money from the original bid. The team made the experience easy and have earned repeat business.