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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Mackenzie Haugh
Lifetime windows did an amazing job. My estimate was reasonable, the wait time after ordering was short and they installed in one day. Any little issues that arose, were handled swiftly and fairly by them. Highly recommend the company and the product.
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Bobby Lombardi
It’s not easy for me to write a review and so I rarely ever do one. Lifetime Windows and Siding is going to be the exception. After recent hail storms and a new roof, my wife and I finally, after 35 years in the same house, decided to go a little further and add windows, siding and even a new door. Surprisingly at that very same time a young man from LW&S, who just happened to be in the neighborhood going door-to-door, stopped by our house. I set up an appointment to have someone come by and ...Read more
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AJ Hashman
Called to get an estimate on 2 replacement windows they set up a time to come out then called me back stating the windows would be around 3000 each and if i wasn't ready to pay that out of pocket they were not coming out to even give an estimate. Very rude and 3x the price of their competition. Kinda glad they didn't waste my time. Good luck with that business model I'll spend my money elsewhere.
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Randy Smail
Lifetime provided a professional experience from the 1st knock on the door to the final walk through with our project manager. Jason, the project manager, communicated directly with me via text, phone calls and in person throughout the project. The installation crew were polite, friendly and most importantly great craftsmen. We really love the look of the Hardie siding and it's great to know that we won't have to paint for years and years.
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Patrick Ah You
First rate experience from top to bottom. All promises kept. All work done on time. Quality workmanship with highest level of attention to every detail. Jason and Kevin did an outstanding job of communicating with us (and their crew) every step of the way. They were very attentive to our needs and patiently addressed all our concerns along the way. We couldn’t be happier with the product and the entire process. We love our new house!!! Much mahalo to everyone at Lifetime Windows and Siding.