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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Greg M
I viewed their TV commercial stating their concerns for the community during the covid 19 pandemic and also offering 40 % off and decided to generate a salesman to come out and give us an estimate . Salesman was polite , professional and agreed to our terms of no song and dance & just a $$$ estimate and made his measurements and emailed me a copy the next day. Their prices for fiberglass windows are substantially higher than Lowes fiberglass windows (Pella ) when I stated this to the salesman o... Read more
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Denise Magnuson
We purchased windows and sliding patio doors from Lifetime. The window installers and the stainers were prompt, courteous and informative. They communicated well with us when appointments were set and if plans needed to be changed because of snow they were flexible and willing to reschedule. Brandon Whitney brought his crew of stainers and finishers to our home. Brandon noticed an error in the sliding door installation and he was quick to remediate the problem. He also made sure that sandin... Read more
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Kristopher Raper
Lifetime Windows and Doors recently installed 14 new windows in our home. This was our first major home update project so we were nervous about selecting the right company. After meeting with several other window companies we decided to go with Lifetime and we are extremely happy that we did. The sales person was extremely knowledgable and walked us through the process answered all of our questions. The installation crew (Mike, Bubba, Greg, Austin, and AJ) were more than we ever expected. They w... Read more
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W3g1b2d
These guys are great! From our initial meet with our sales representative to final install, our experience couldn't have been better. Holly, our Sales rep spent time with us thoroughly going over Lifetime Windows products and styles and their benefits. We ordered six windows and two large patio doors. George , the production manager came out and took measurements and he sure can use a tape measure! The windows and patio doors, when they came out, fit perfectly. Shaylan and Mary in the office ... Read more
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Chad Outcalt
Great service, the 5 gentlemen that worked on our windows were very professional and nice. The 5 gentlemen were Mike N. , Bubba, Greg, Austin and Robert. All 5 were very knowledgeable as well.