Transform Your Home With High-Quality Casement Windows

New windows may be the perfect solution if you’re looking to boost your home’s energy efficiency and appearance. Replacing old, outdated windows with modern casement windows can enhance your home’s look and functionality while bringing more natural light into your space. Lifetime can help—we’re the top Infinity from Marvin dealer in the nation and can install the best casement windows on the market to achieve your home renovation goals.

Our Casement Windows

Casement windows are hinged on one side and open outward using a crank. They offer excellent ventilation and are great for rooms that need lots of fresh air, such as kitchens and bathrooms. Infinity from Marvin casement windows are:

  • Energy efficient
  • Crack resistant
  • Leak resistant
  • Highly durable and withstand extreme weather changes
  • Fabricated from durable fiberglass, which is eight times stronger than vinyl
  • Customizable, with myriad options for finishes, configurations, colors, glass, and hardware

In addition, our casement windows feature a secure multi-point locking system for enhanced security. Our team will help you design new windows to suit your personal preferences and your home’s architecture.

Partner With Lifetime

Lifetime is dedicated to your satisfaction. We are a locally owned company emphasizing integrity and clear communication. We’re also a BBB Torch award winner, and you can trust us to perform a flawless installation for windows that will stand the test of time. We even offer a double transferable lifetime warranty covering service, labor, parts, and accidental glass breakage for your peace of mind.

A Reliable Window Company

The Lifetime team will take the time to understand your desires for your casement window installation or replacement. Contact us today to schedule a complimentary consultation and receive a guaranteed quote. We have locations in Denver, Phoenix, and serve nearby cities. Make sure to ask about our special offers and financing when you call!

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Read Our Reviews

It takes a special home remodeling contractor to consistently deliver best-in-class customer service. Read about our customers’ delightful experience working with Lifetime, then contact us today to get started with your project.

"Lifetime Windows did an outstanding job replacing our windows & sliding patio door. The crew are definitely skilled craftsmen who have experience in this industry. There was no damage, they made sure everything was sealed properly, were courteous, and did an excellent job cleaning up. The project went smoothly with great efficiency..."

Mike L.

"We had 16 windows and a patio door replaced by Lifetime and the whole process, from the first meeting and estimate all the way through the final installation, was great!  The sales and office staff were great with communication and the installation crew did an excellent job..."

Travis H.

"Interviewed multiple companies. Lifetime made us the most comfortable and their quote was pleasant for the size of our project. The window crew was phenomenal and did beautiful work! All the windows fit and work perfectly! Can’t wait to have the siding project completed!"

Randy M.

"I had Lifetime Windows & Siding install James Hardie siding on my house. I am very happy with the product and the crew that installed it. The house looks amazing and the crew did a great job of clean-up afterwards. They have been doing this for a long time, and it shows. They work hard and pay attention to details..."

Tim M.

"Lifetime was awesome! I am an architect and am very picky about the work that is done to my house. Everyone was very professional through the whole process from sales to install, and their pricing beat out other competitors. The install crews were very skilled, kind and respectful, and they always made sure everything was taken care of..."

Christine R.

Trusted by some of the biggest names in the business!