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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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Linda G
As always the staff at Lifetime were excellent. From the salesman, measurer, scheduler and install team. Thanks. I love my new door.
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Dustin McGee
Very happy with Lifetime windows. I needed to replace some 80+ year old windows and Keron Singh was the man! Didn't oversell me, walked me through all the options and I ultimately decided on the Infinity by Marvin windows. From measuring to installation, the entire Lifetime crew were great to work with. Friendly, fast and efficient. My new windows are beautiful and very energy efficient. I'm a happy guy! Highly recommend!
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James Montez
We recently replace a majority of our windows and use Lifetime. They were amazing from sales too measuring and finally installation. The installation crew Eduardo, Louis, and the rest of the crew were awesome.
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Paul Clarke
First and foremost, our experience with a shower replacement/installation was exceptional across the board. Complete professionalism. While it's a big investment, the value of the visual appearance as well as ease of maintenance is worth it.
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Julia McVay
Our new shower from lifetime is so beautiful and functional! We love that it looks high end and performs so well for our family with two littles. We had the shower installed in December, ahead of schedule and even with a hiccup with the glass company it was installed and completed within 3 days. Ryan Willis was excellent and his guidance and design expertise were the reason we chose lifetime over the 4 other quotes we got. Hallie coordinated the project and got all our materials in quicker than...Read more