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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April Damon
Such an amazing experience with lifetime windows from start to finish ! We had multiple quotes from several other companies and it almost felt like we were being scammed. Sat down with Krista at lifetime and she explained everything to us in detail and didn't charge us half the cost of these other companies. The installers were very clean and friendly, kept us up to date the entire process and really went above and beyond even replacing a few windows seals that weren't in our quotes ! Don't hesi...Read more
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Louis Alejandro
A gentleman came by to introduce services provided by Lifetime (I thought they were part of the gym I used to go to in Scottsdale) but they do door/window and shower installation. I went ahead and Google this company and I was impressed by the number of 5 stars they get from obvious satisfied customers. This says a lot, for sure. There are a handful of 1 and 2 stars from "useless comments" and they don't even figure in my decision to consider using Lifetime.
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Christopher Mackin
We had basement flooding and a tornado this year, we had many many people coming out to work with us. The people from Lifetime Windows were consistently amongst the best. They were there when they said they would be, polite and friendly at every point. Mike H. showed up today to finish the job and was great to have here. The windows and product quality are there, but I've been more impressed with the professionalism and treatment by the employees, working with them has been nothing but posit...Read more
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Nancy Williamson
Very reliable and efficient!
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JERI FLYNN
This company is a well oiled machine! They have a system from the initial contact until after the installation is complete. The workmen did a great job. I will use Lifetime Windows and Siding for all future needs!