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Beautiful Designs. Amazing Performance.

Infinity from Marvin fiberglass patio doors are made from Ultrex® fiberglass, which is so strong less of it is needed in the door frames. This means you get bigger views and more daylight. Our sliding doors are engineered to provide effortless operation and reliable performance.

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BEAUTIFUL DESIGNS AMAZING VIEWS

Infinity from Marvin fiberglass patio doors are made from Ultrex® fiberglass, which is so strong less of it is needed in the door frames. This means you get bigger views and more daylight. Our sliding doors are engineered to provide effortless operation and reliable performance.

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Design

BUILT FOR
HIGH ALTITUDE

Ultrex fiberglass is an ultimate performer. It’s beautiful. It’s 8X stronger than vinyl, expands 87% less than vinyl, and expands 75% less than Fibrex.

REVIEWS WHAT OUR CLIENTS SAY

We had a great experience with Lifetime Windows and Siding! We replaced our siding with James Hardy siding and installed new gutters. This was a big project and took several days. Jason, the project manager was clear with the timeline and it stayed the same. He was very professional and always available. The crew, AZ Construction was amazing. Their work was detail orientated and they cleaned everything up, even using a metal detector to find any small pieces. Mr. Youn and his crew did the gutters and you can tell he knew exactly what he was doing. Lifetime is big on customer service and even though it was higher bid than other companies it was beyond worth it!!!
Jeannette Larson
Jeannette Larson
19:08 13 Oct 21
We had most of our old wood windows replace by Lifetime. They did a very professional job, the team were efficient and the team leader was extremely particular, ensuring that everything was installed exactly right and finished well. I would strongly recommend. One window arrived with some sort of residue on the glass that they could not remove, so replacement glazing units were immediately ordered. Our service technician, Darian Manzanares, swapped the units over this week. I asked if he could also look at a door lock that was proving sticky and also pointed out one window screen that was slightly damaged. He happily fixed both issues while he was here, even though they weren't on his original order. Very pleased.
Adrian Saunders
Adrian Saunders
16:50 08 Oct 21
Appreciate them supporting the zoo!
Alyssa Martinez
Alyssa Martinez
19:34 03 Oct 21
I appreciate you supporting the zoo.
Emily Richardson
Emily Richardson
16:27 03 Oct 21
We appreciate the support for the Denver zoo! Great company.
Ashley Pitman
Ashley Pitman
16:13 03 Oct 21
Derian was a pleasure to have in our home. Polite, professional and competent. So glad we chose Lifetime for our windows and doors!
Lauren Miller
Lauren Miller
17:29 29 Sep 21
Darian replaced my screens in a timely manner and was very professional. Lifetime Windows and Siding has done everything they promised to do and I would recommend them to anyone looking for new windows. Thank you!
Amy Van Kirk
Amy Van Kirk
19:41 22 Sep 21
My windows were in desperate need of repair. My windows were foggy with condensation and white streaks inside the rotted-out double pane panels. The Marvin window looks fantastic! It's easy to operate, energy-efficient and beautiful with custom frame color options.I had a few questions about the quality of my installation on one window after the initial work was performed and the technicians came back twice more until I was pleased with the craftsmanship. Darian M. took the time to walk through the final steps of the project to make sure that everything was great. This is an example of the great customer service that they offer, and the contract was not closed until we agreed that the craftsmanship was top-notch.I would definitely recommend Lifetime Windows and the Marvin branded window specifically for a premium home upgrade. The improvement in the temperature control alone makes it worth it let alone the fact that I can see through the crystal clear E-glass much better than before.
jed glass
jed glass
21:35 13 Sep 21
Great all around experience. Sam and his crew replaced all the windows in my home in 1 day. They worked hard and had answers to all my questions. This company is not the cheapest, but they provide high quality products with exceptional service.
Jack Kneubuhl
Jack Kneubuhl
05:19 11 Sep 21
I had several windows and two patio doors replaced by Lifetime Windows and Siding. For the two patio doors, I also asked them to replace the frames inside the house too. The original crew didn't do a good job on the wood work. Anthony Esposito from Lifetime Windows came over. He not only adjusted my screen doors and patio door locks but also fixed two door frames. He worked very hard to make sure everything is right. I highly recommend Anthony to anyone who may have any issues. The company needs this type of guys with right working attitude.
Jielun Sun
Jielun Sun
22:16 30 Aug 21
Couldn't be happier with the Marvin windows we just had installed. The Lifetime Window team from Bill Kinsella in Sales all the way down to Roberto's install team made the whole process so easy. We wish we had done our windows 10 years ago had we known how easy it would be. Thank you to the Lifetime Windows team, we appreciate all that you did for us! Sincere thanks, Gerrit and Gretchen
Gerrit Higashi
Gerrit Higashi
20:07 21 Aug 21
I had my windows replaced by lifetime in 2012. Now it need some work done on them like caulking, resealing, new weather stripping,and a broken glass fixed. I thought there was lifetime warranty in my windows. At least on problems like broken seals.I've called they sent someone out, and haven't heard from them since, and this was back in June. Now late August. I have called every week and left messages. I finally got a call back from Reabecca and nothing since. Called a Manager , he was mad because someone gave me his number. Haven't heard back from him either yet.What has happened to customer service now days. I thought they could at least get back with me tell me when they can get to me if at all, so at least if they couldn't I can find someone who can. Larry, the Manager is now working with me and trying to get it going. Frustrated Candi
candi holtz
candi holtz
01:40 20 Aug 21
They put new siding on my house and I’m so happy with their service and the quality of their work. The entire experience was very positive and I highly recommend them!
Amy Skinner
Amy Skinner
22:31 18 Aug 21
Paco and his crew arrived at 9am and left by about 4:30pm. They installed a patio door and 6 windows. They were very friendly and respectful of my home and time. They made sure I was happy with everything before they left. They even taught me a few things about installing windows. The project manager, Luis, stopped by once during the day to check on every thing.
Santana Sanchez
Santana Sanchez
18:42 12 Aug 21
Nice windows at the Denver zoo!!
Ris Piaggio
Ris Piaggio
17:50 07 Aug 21
Great support of the zoo!
Spencer Cunningham
Spencer Cunningham
17:34 07 Aug 21
Great company easy to use
Laura Velasquez
Laura Velasquez
14:56 07 Aug 21
Darian was prompt, professional and his work was high quality. If you are looking to have a window repaired, I highly recommend.
Christopher
Christopher
17:57 03 Aug 21
I contacted Stephanie to have some minor repairs done following our siding project. Daniel and his assistant came out, did the repairs in a quick, efficient manner. I continue to be impressed and satisfied with Lifetime's guaranty. Stephanie is a gem and quickly responded to my needs.
Robert Morrissey
Robert Morrissey
22:13 02 Aug 21
Jessie , the siding lead man was very helpful. We had some issues but he step up and handle the problem. The window crew and the siding crew were the best! Still waiting for a missed order window and screens to come in but Jessie was a great leader and is handling everything.
Phillip Mestas
Phillip Mestas
16:52 30 Jul 21

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