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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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Kevin
We just finished having Lifetime install Hardie siding and Marvin windows. It was a really hard decision but we couldn’t be happier and it all started with Dave Thomas. He came out multiple times, was very patient, showed us tons of options and met us on weekends to show other houses they had done. Dave is professional, polite and answers all our questions right away. He and all the folks at Lifetime are the epitome of quality and customer service. The siding is unbelievable. Jason V, our projec...Read more
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Laura Krausa
Absolutely true to their word, this company stood by their lifetime guarantee and replaced the panels in a particularly big window that were causing us some difficulties. They were very responsive and extremely accommodating through the whole experience. But the best part of the entire process was the incredible technician they sent to help us - Luis! He was kind, polite, friendly, smart - and he stayed until he was 1000% certain the issue was completely resolved. This is what true customer serv...Read more
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Leigh Libra Boutique
What a great easy experience I had working with everyone there! Very professional and nice. We loved working with them!
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Tom Flanagan
If only I could give Lifetime Windows and Siding a 6th star! Where to start... First of all, to have such an enjoyable experience buying new James Hardie Siding and Marvin Infinity Fiberglass windows was an experience I didn't expect to have! I'm not sure what Lifetime is paying David Thomas but I know it's not enough. To have a sales manager pay such careful attention to my needs and wants is something I haven't experienced in the remodeling industry. As a business owner for many years now, I k...Read more
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Gina
The team at Lifetime is great to work with. My interaction with everyone has been a pleasure!