Take a look at our past work!

Lifetime Windows & Siding

Learn about us:



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

Reviewer photo
Smurf Person
Everything has gone quite well with the purchase and replacement of all the windows in our house. They look beautiful. The old windows were mostly the original windows from 1984, mostly with condensation between the panes and cracks in a couple of places. Les Eos was the lead installer, and he and his assistant were very friendly and efficient. We had one minor glitch with the installation and an out-of-place wire, and Les told us to make sure to contact the company if there was any problem....Read more
Reviewer photo
Qilly Parker
Lifetime Windows and Siding was contracted to do siding on our home. The product was top notch. The crew sent here was amazing. There were supposed to be four guys, and it ended up being two. These two guys worked during the hot days and never complained once. They were very respectful and very hard workers. The siding looks amazing and we are very happy with this company. I would highly recommend to anyone.
Reviewer photo
Callie Page
What a wonderful company! Everyone is so nice and helpful!
Reviewer photo
Mary O.
Love this Company from start to finish-Couldn't ask for more!!!
Reviewer photo
Christine
Lifetime Windows and Siding was Awesome! I am an architect and I am very picky about the work that is done to my house. We had our gutters, fascia, soffit and windows all replaced by Lifetime and they did a fabulous job. They were very professional through the whole process from sales to install, and their pricing beat out other competitors. The install crews were very skilled, kind and respectful, and they always made sure everything was taken care of just the way I wanted it. I would hig...Read more