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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Lindsay Kenny
We had several old windows replaced last week by Lifetime and they did a great job. Here are some of the reasons we loved their work. - They did exactly what they had agreed to do - Their price was fair and accurate - They were on time, worked hard and cleaned up perfectly afterwards - The installers, Mike and Ryan were really nice guys and did a fantastic job. - They were professionals who clearly knew what they were doing. Of course that's expected from any vender, but is not always the case -...Read more
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Ellen Jaskol
Greg and his team, along with project manager John were really professional and communicative as they approached a difficult window install. The windows were really big, and up high, and they figured out how to do it. The windows look great and we are very glad that we went with Lifetime.
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Tonya Wilton
Jeff came out himself and gave me the best quote for getting my roof done ,and showed me some very good quality materials to do the job right the first time ,I will recommend them to anyone who needs their roof done. Great Work and my house looks beautiful!!!!
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Jim Batstone
The best experience you could ask for. Lifetime windows is a GREAT company with a great team. From our first meeting with Mark and throughout the transaction and installation everything went exactly as expected. I highly recommend Lifetime Windows if you're considering new windows, truly the best!
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Robert Amey
I just wanted to take a moment and recognize the installation team. They were well organized and took pride in their work. The windows look great! I don’t remember the last time I have written a note like this. Thank you, Bob A.