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

631 Olympia Avenue , Longmont, CO, US
  • Anlin: White
1784 Eisenhower Drive , Louisville, CO, US
  • Infinity: Ebony
6037 Xenon Street , Arvada, CO, US
  • James Hardie Siding: Arctic White
  • James Hardie Siding: Iron Gray
11189 West Idaho Avenue , Lakewood, CO, US
  • James Hardie Siding: Monterey Taupe
  • James Hardie Siding: Timber Bark
9208 Fallen Rock Road , Conifer, CO, US
  • Infinity by Marvin: White
  • Infinity by Marvin: Ebony
  • James Hardie Siding: Iron Gray

Customer Testimonials

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Jodi Bochert
Lifetime is one of the most incompetent companies I have ever dealt with. They installed a new shower in my second floor master bathroom in January 2024. 1. In February, I found about 10 gallons of water in the corner of my basement. I used the shop vac to clean it up and started trying to figure out where it was coming from. For four days, I cleaned up water in the basement and tried to find out where it was coming from. 2. On the fifth day (a Saturday), I found a large puddle in my garage. Aga...Read more
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Kevin Winter
Great communication, respectful installers, very pleased with the results.
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Rivero Family
Installation of our new ProVia entry door was absolutely fabulous. From the sales rep, Joe, who helped answer every question, listened to our needs and did not pressure us into a decision, to the installation. The installers showed up as expected, installed the door, even with some unexpected challenges, and left the area clean. Our entry has never looked so good. Thank you, Lifetime for the professionalism and support throughout the process.
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Jeff Betcher
Great experience throughout the process, sales, measure, install and stucco repair. Good communication at each point of the process and reported on site as promised. Excellent quality and craftsmanship at every stage.
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richard birdsell
They did a great job remodeling my out of date bath tube with a new shower assembly Brad Cromer was very help full in helping us decide on what to go with and the shower came out beautiful, thank you