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
Charlie Painchaud
Alex from Lifetime took care of everything and then some. Would highly recommend him to take a stressful process and make it easy. Finished product looks great, and they got it done ahead of schedule. Thank you Alex and Lifetime
Reviewer photo
Courtney Moore
I made an appointment with lifetime windows for full window and door replacement in my home. When I made the appointment I was asked if I was the sole decision-maker in my house and I told them I would be making decisions for this project. They sent out a sales person who arrived late and without a mask, contrary to their posted COVID protocols. The sales person asked me if I was the sole decision-maker and I told her that I would be sharing this information for final decision making with my spo...Read more
Reviewer photo
Tammy Alexander
Jason and his crew were very professional, quick and efficient. Love my new window and sliding doors!
Reviewer photo
Patty Larson
Jason and his crew were efficient, friendly, knowledgeable and a pleasure to work with. I couldn't believe how fast they worked. And no mess afterwards. Even gave a tutorial on operation and maintenance. I love our new windows and doors! Thank you! Paul and Patty Larson
Reviewer photo
Ed Balduf
They showed up on time. They are like the stereotypical used car salesman. First thing he insisted that our house was horrible, no insulation, nothing good about it. Then he threw out a price, trying to get me to bite, figure out how much money I had.... hadn't measured a thing. Then proceeded to tell me how horrible I was for considering anything else. In the end I asked him to leave. Just don't bother with these guys.