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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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Jenny Roberts
Richard C. was on time. He was very professional and answered all my questions and concerns. He offered discounts but didn't pressure me into an on the spot decision.
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Michelle West
Richard Coats came to our home and spoke to us about replacing our front and back doors. He was knowledgable about our options and didn't pressure us to make a decision we weren't sure about. We recommend working with Richard.
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John Edwards
The good part of my door and window installation was definitely the installation crew. They were extremely polite and placed runners in my home to protect the floors. They also took the time to show me exactly how each component would be installed and sealed against moisture. I found out later in the day that the crew had to modify the door opening because the door was ordered slightly too large. I would give the crew 6 stars if I could. Now for what went wrong. The so-called project manager Jeb...Read more
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Peter Schramm
Dan Wells was very responsive and met all of our expectations. He kept us informed the entire project. He helped us make a good decision and was never pushy, everything you would want on a project like this. We will happily use Dan Wells in the future and would recommend him to any of our friends.
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Scott Barber
I’m strictly speaking from a roadside experience today. Approximately 12:05 today driver #22 decided it was a smart idea to pull out in front of my truck on highway 93 in a 55mph zone without regard to me being there. I had to lock up my brakes so I didn’t rear end this company vehicle and completely destroy mine. I am a contractor that carries a large amount of tools in the truck bed. These tools would have been very dangerous for me and my co-worker had we hit this van. I am very annoyed as to...Read more