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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Kelly Wagner-Grull
What a phenomenal experience! I wanted to express my sincere gratitude, appreciation and WOW- that we experienced when working with Dave our sales consultant and then Jaime's team of installers of our windows! The level of care, precaution and precision that was offered by all employees was outstanding! Especially the installers, It made the entire process a true positive experience! The installer team is so important in the entire process, I want to be sure to acknowledge and valued their wo... Read more
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Aaron Saxton
I couldn't have asked for a better experience when replacing windows. From the quoting thru installation, Lifetime Windows was great. Our windows arrived during the height of the COVID pandemic, they stored the windows and didn't pressure us to schedule installation, we were able to schedule once we felt comfortable. Les, our installer, was quick and knowledgeable. He made sure all messes were cleaned up, before moving to the next window/room. JB stopped by both days and made sure we were happy ... Read more
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John Seeley
Lifetime Window &Siding did entire home with JamesHardie siding. Job foreman Jason Vanremortel had entire job and crews on time and organized and Building and Product knowledge was beyond expectations. The work crew was just as great their job knowledge and workmanship was totally A+. Very happy with the finished product.
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Jane Ames
We are very pleased with our decision to purchase windows and a sliding door from Lifetime Windows. Everyone we dealt with was very kind and respectful. The gentlemen that installed the windows, Robert, Abel, Austin, and Greg, were the best!! They were very respectful to us and of our home. They were very neat and professional and did an excellent job of installation!! Thank you guys!!
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F Solis
Professional work. Brought their own dumpster and restroom to minimize contact during Covid. I worked with Don and Jeff who were both professional and helpful! Roof workers were also professional. They cleaned up each night. Specifically, they went around the house cleaning up all the little nails, which is very appreciated with young children.