Official windows & siding partner of the Denver Broncos serving the Denver Metro Area

Valid until 12/31/26

Buy 2 windows, get 1 free

Plus no payments and no interest until 2028.*

Plus Double Lifetime Warranty Protection from your local certified Infinity by Marvin® installation experts.

*Terms and conditions apply

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By submitting my contact information and checking this box, I agree and authorize Lifetime Windows & Siding Inc. to reach out via phone, email, or text for explicit information about project needs and offerings from Lifetime Windows & Siding Inc. Message frequency may vary based on customer needs, with an average of 1-2 messages per month and may include conversational messages related to project needs and offerings. Standard message and data rates may apply. I can opt-out at any time by Replying 'STOP' or by contacting us at info@mylifetimehome.com to unsubscribe at any time. Reply 'HELP' for help. We do not share your mobile opt-in information with anyone. This consent is not required as a condition of purchase. See our Privacy Policy and our Messaging Terms and Conditions for more information about how we handle your data.

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Peace of Mind for a Lifetime

Double Lifetime Warranty Protection

Your installation comes with a transferable double lifetime warranty.

Terms & conditions apply

Top Infinity by Marvin Dealer

Named a top dealer in the nation from Infinity by Marvin for the highest standards of craftsmanship.

Lower Energy Bills

Upgrade to Energy Star® rated Infinity by Marvin windows designed to last in the Colorado climate.

Guaranteed Pricing

Accurate pricing that doesn’t change–guaranteed.

Find the perfect fit for your home from Infinity by Marvin

Our windows

Ultrex fiberglass windows: Widows that last a Lifetime

Constructed with Ultrex fiberglass, offering superior durability
Enhanced energy efficiency
Fiberglass is virtually maintenance-free
Resistan to dents and breaks, as well as warping, rotting and fading

Doors

Safe, durable, energy-efficeint exteriordoors for you home

Crafted with quality materials, reulting in doors that withstand wear and weather for years to come
Advanced locks and sturdy materials ensure added homeowner protection
Enhanced energy efficiency
Customizable door finishes, hardware, and glass options to sult any style

Local Reviews

Real people.
Real transformations

Benjamin Youngdahl

We had every window in our home replaced included 3 sliding doors on our patio. I'm very pleased with the quality of the products and the install. The entire process went very smoothly and while windows are crazy expensive, I found Lifetime was reasonable compared to competitors. 10/10 would recommend.

David A. Listman

The team did a great job getting all of our windows installed quickly. They left the area around our home and inside our home immaculate. The windows are amazing. There was one screen that was ripped and they repaired it right away, but are replacing it with a new one as well. Amazing service.

Chelsea Bohm

The windows in our house were the original from 1980, still in good shape, but definitely needed upgraded for numerous reasons. I am an extremely budget conscious person, and lifetime won my money! From start to finish was about 8 hours, but that included clean up and walk through. The big thing that won us over was the warranty, lifetime warranty no matter what happens (except acts of God of course). Looking forward to having a warmer house this winter! Of course I didn't take photos of any other windows in the house, but this is the before and after of our living room.

April Damon

Such an amazing experience with lifetime windows from start to finish ! We had multiple quotes from several other companies and it almost felt like we were being scammed. Sat down with Krista at lifetime and she explained everything to us in detail and didn't charge us half the cost of these other companies. The installers were very clean and friendly, kept us up to date the entire process and really went above and beyond even replacing a few windows seals that weren't in our quotes ! Don't hesitate to use lifetime windows such an amazing company.

Amber Pennington

I just had my windows replaced by Lifetime Home Remodeling and the experience was beyond anything I expected! From beginning to the end I could feel that this company really cared, and when you are doing a project as big as replacing your windows, genuinity is all you could really want In the end. I am beyond pleased. If I could give 10 stars, I would!!!! Thank you Lifetime!!!

Jennifer Risdon

I recently had my second-story windows replaced by Lifetime and I couldn't be more impressed with the entire process. From the initial consultation to the final installation, the team was professional, punctual and meticulous in their work. Justin the project manager, was friendly, knowledgeable, and answered all of our questions. Alberto and his crew were highly skilled and took great care to ensure that everything was perfectly aligned and sealed. Great attention to detail and commitment to quality. Overall, I'm extremely satisfied with the results! I would highly recommend Lifetime to anyone in need of window installation.

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Design Your Dream Home

Shapes, finishes, hardware, and glass options, all engineered from Ultrex® fiberglass. Whether you want a subtle refresh or a bold new look, there's an Infinity product for your home and your climate.