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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Jill Remenapp
Lifetime Windows and Siding was one of our sponsors for a memorial golf tournament for a dear friend and they were truly a pleasure to work with. Not only did they donate money, they donated giveaways and their time. Isaac S. and Tyler were on time and had a very organized and professional booth set up, and also helped run a game to raise funds. They were exceptional sponsors and I look forward to recommending them for anyone who needs windows/siding work done in the future.
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Bruce Wayne
To be clear they hire sub contractors to install their windows. We had a guy do our install with his little daughter to assist him.. not very professional for a company to do.. after listening to their sales reps brag about the windows but then have somebody who doesn't really work for them do the installation 🤪🤑. The windows were not on good quality and they are crooked. Having to have them replaced already. So be aware.. You would think for the costs they charge you for the windows...they ...Read more
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Sal Tucker
The Lifetime crew from sales to install, was second to none! Special shout-out to the installation team lead by Robert, AJ, and Bubba! Fantastic crew with dire drive and motivation to satisfy the customer! Additionally, the professional work ethic, and great attention to detail, that had provided a polished product and service. Robert and team, worked in harmony with great teamwork! Please extend our deepest gratitude and appreciation to a job well-done to the install team. Highly recommen...Read more
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Patricia Seguin
Where to begin... what an amazing experience! Beginning with Mark B, my sales consultant, really great - no pressure and no hard sales pitch just informative. Then there was Mary - always so sweet, cool and patient with my many questions and phone calls. Vince, Anthony and Juan, installers from the first two days, sooo great!! Vince and Anthony's attention to detail was so awesome - this was a hard job because my house is like a thousand years old jk jk and they went through a lot to get this in...Read more
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Glen Keltch
These guys were super. They worked hard and they were So polite. We are seniors and they were very courteous to us and to our needs