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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Mary Wicker
Billy Smith, one of the Design Consultants, was great to work with. He was very professional, explained information in a way that was easy for a lay person to understand, and answered all my questions. While I have not yet had my windows replaced, I am already very impressed with my experience so far. Thank you!
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xxnaferiousxx831
Richard Coats is a design consultant for lifetime windows and doors. He is professional courteous and knowledgeable . Because of him I’ll be doing all of my windows at a fair price. So if you guys want the job done right the first time and you want a great deal, get a hold of Richard at lifetime windows and he will get you going.
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Linda Kohl
Darian came out to complete my screen installation because a pin was missing on one screen and a pin broke on another. He is awesome. He was the epitome of a professional service provider: he called to let me know he was on his way; he was courteous and personable, remembering my granddaughter and asking about her from a previous visit; he showed me a very important feature on my sliding door that I wasn't aware of (or had forgotten). Lifetime was timely in their response to my issue which is...Read more
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Shane Menard
Richard C. Did great presentation for our window replacement project. Explained product and compared them to our existing windows. We were able to make an informed decision.
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Juan Lucio
Richard C came out to do my consultation. I was on the fence about getting windows but i was impressed with his professionalism and preparedness. Definitely made me a deal worth while. Im impressed with the product and the warranty. Will update with the finished product.