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

3102 North 157th Lane , Goodyear, AZ, US
  • Windows
1785 South Eudora Street , Denver, CO, US
  • Infinity by Marvin
  • Infinity by Marvin: Ebony
  • Windows
12316 West Texas Drive , Lakewood, CO, US
  • James Hardie Statement Collection Siding
  • James Hardie Statement Collection Siding: Aged Pewter
  • Siding
  • Windows
2562 East Nichols Circle , Centennial, CO, US
  • Infinity by Marvin
  • Infinity by Marvin: White
  • Windows
10046 White Oak Place , Littleton, CO, US
  • Anlin
  • Anlin: White
  • Windows

Customer Testimonials

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C Mantyla
Love our windows and had such a smooth install process. The windows look high quality. I’m happy we went through Lifetime. Our installers did a fabulous job. I highly recommend Michael, Marco and Rodney as installers. They cleaned all the dust up well and did a good job covering up our furniture.
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Randy Jensen
From the sales person to the person that stained our windows and door all were professional and did a great job. We received a quality product, the installation was seamless, and we are now enjoying a new door, a picture window and a double-hung window in our family room. Highly recommended.
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Diane Christensen
I just had some windows replaced and a huge bay window installed. I would like to express my appreciation to John and Deonte for the excellent work they did in installing and teplacing them! They knocked it out in one day. Super friendly and respectful. They work great together like bread and butter. It looks wonderful. Thank you!! I would also like to thank Joe, the design consultant for setting everything up. He explained and showed me everything I needed to know. I'm convinced I made the righ... Read more
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John Wedding
Don't ever give your phone number to this company. I made the mistake of given one of their door to door reps my number to have them check for hail damage on my roof... they called me directly 3 times the same day and now I have 20+ spam calls along with calls from other roofing companies daily. They immediately shared my information.
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M M
This is a difficult review. The windows they installed seem very nice, and we are happy with them. However, getting the job finished has been extremely difficult, and the communication has been a struggle. We have had three big problems. 1) One of the windows was incorrectly sized, so we are still waiting another 4-6 weeks to actually finish the job. 2) One of the other windows was left unfinished - the team just left and packed everything up and left one of the windows undone (seriously). Tha... Read more