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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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ronnie collin
Excellent installers at LIfetime Windows. I had new windows put into a 1954 home. There were some issues with a lip left from the original metal windows, but the installers did a great job of figuring out what needed to be done and finishing the installation on time. Very professional and good communicators all around. I highly recommend this company. I will use them again.
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Lasinda Crane
I reached out to Lifetime Windows after seeing them on Colorado & Company; I'm very glad I did. My complete experience has been one of genuine concern from them towards the outcome of my window replacements. We had one issue with the first installers and Allan and Rebecca made sure that all got attended to - Les and his crew were very attentive and made sure the job was done right! Thank you, Lasinda
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Brian Kilgore
We purchased our home in July of last year and we knew that one of the first projects was going to be new windows. The house was built in 1938 and the current windows appeared to be original (steel frame, single pane). A few months after moving in, we began to get quotes from a variety of window vendors. Unfortunately, all of the quotes we got back were 50% to 100% more than we had planned on spending on this project, so we decided to postpone and focus on other projects. This past summer, we de...Read more
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Larry Carlson
Salesperson took inaccurate measurements, factory sent wrong model doors so it took 5 months for install. Installers were great, product is excellent and management took responsibility and made things right.
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Judy Jorgensen
We are very happy with the three Lifetime windows installed in our home. The window quality is no comparison to what was installed by the builder in our home. Eventually, we will replace the rest of our house windows buy Lifetime. Highly recommend this companies windows.