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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Jeri Ismert
We just had all of the windows in our house replaced. The new fiberglass windows and the new wood trim needed to be stained to match the dark walnut throughout our house. We had the best crew here making it all happen. Brandon, Gary, and Callum arrived every day when they said they would. Even though it was the middle of winter, they put plastic up over all the windows while they were working on them so the house stayed pretty warm. They let us know ahead of time which windows they wo...Read more
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Liz West
JB, Jesse and their crew did a great job with our Window Install. They were prompt and professional, and even finished the job in the middle of a snowstorm. We are very satisfied with the entire job with Lifetime!
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Cindy Brown
Don't do it - not this company. Got estimate for whole house windows but liked a different companies windows better. Bought Lifetime Slider doors. Salesman was very helpful and attentive. Totally different story after they got the order and our money. Follow up is horrible - no communication, doesn't return calls or emails. Got the doors long after they were promised. Once we got them, there was an issue with the seal and we weren't happy with the product. After repeatedly calling and leaving me...Read more
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Shannon Foraker
Awesome product and even more fantastic installation crew! Tim, Justin, and JB were all fantastic. Very professional and thorough. Answered questions when asked and they even covered the furniture to ensure there was no dust residue left on my new furniture!
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Christie Aldinger
Lifetime has done a fantastic job on replacing the major windows in our house. They worked with us on financing and did the job in phases that helped our budget. Thanks to everyone involved!