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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Jeff Gibson
Jeff and his crew was awesome to work with. I have a large house with a complex roof and his crew stripped the old roof and installed a new one in only one day. They were cleaning up at 8:30 at night. The gutters look great and also went up very quickly. I couldn't be happier with Lifetime Roof and Solar and will definitely recommend them to family and friends.
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Ed Wasserman
Lifetime did a FANTASTIC job installing some new Marvin casement windows for us. We chose Lifetime for a few reasons 1. Installing quality Marvin windows 2. Sales process was easy, no pressure and they took care of the financing. 3. The price included product, installation, AND staining the interior woodwork. Other companies are selling a great product but didn't include staining after the install. Lifetime provided a 100% complete installation, and the entire project came out cheaper than the ... Read more
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Adam Gardell
Lifetime windows did a great job tearing out our old, inefficient windows, and installing new ones. It was a quick process and they even helped me navigate through my HOA. The windows look incredible and it was a quick process overall. Windows were ordered, made, and installed within 4 weeks. Lifetime's project manager, Lonnie Vonfeldt was awesome. He came by the house to make sure everything was running smoothly. He caught a few errors made by the window manufacturer and got them ordered proac... Read more
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Al C
We used Lifetime Windows and Doors because they have quality products and with their promotions at this time they have the best price. We had Robert and Abel doing the install. They where prompt, courteous, and professional. I would definitely use their services again.
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Sue McLaughlin
I was extremely pleased with the service from Lifetime. They were courteous and professional from the sales person coming to my house for a quote, the measuring, to the installation. They took the time to make sure everything was done perfectly and to my satisfaction. Great company to work with.