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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Christine Kelley
These windows are great quality! The warranty is amazing too - lifetime, hence the name, and transfers to new owners if you sell the home. Installers were quick and efficient.
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Mark White
These guys are fantastic. The installation process was quick and clean. The windows are perfect. I own a number of older homes and have used othe national companies in the past not anymore. Lifetime will get all my future business.
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Karina Higuera
Never used this business, but after being on the freeway with one of their drivers, I never will. This company and their workers are actively contributing to Arizona/Phoenix being one of the most dangerous places to drive. In what world was it appropriate for your driver to decide to take the SHOULDER of the freeway when stuck in traffic for TWO MINUTES??? And when honked at as they were dangerously close to hitting other cars at 30mph+, they decided it was just fine to try and cut in front of ... Read more
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Bill Seamans
I had a very good experience from initial quote to installation. We had a small issue that was quickly resolved with the help of Pedro, the regional manager. He provided the perfect liaison between me the contractors and home office. Communication was quick and efficient. Now waiting for winter to experience the insulation the new windows provide!
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Judy Day
Pedro Rivera was/is our Project Manger. He is excellent. He is very receptive to questions and concerns regarding installation issues. He goes above and beyond regarding follow up. He drives many miles every day but makes time to stop when needed and if he can't he contacts you as to the reason why and when he will be able to come. We are so glad he's got our back!!