Fiberglass sliding windows replacementUltra-Durable Fiberglass Windows for Homes in La Grange, IL

From piercing wind and heavy snow in the winter, to blistering heat in the summer, homes in La Grange, Illinois, are exposed to a wide range of harsh climate conditions. So, when the time comes to replace your windows, you’ll want to choose a product that is designed to endure. That’s exactly what you’ll find with the premium Fiberglass that Valdicass offers. From the celebrated brand Pella®, the fiberglass windows we install provide lasting:

Durability & Weather Resistance

Pella’s windows are made with a proprietary fiberglass material, which is the strongest available for residential windows. Indeed, these windows are incredibly strong and will resist everything from dents and scratches to rotting and warping due to frequent freeze-and-thaw cycles.

Energy Efficiency

Fiberglass is a naturally insulating material that helps to prevent heat transfer. And, Pella’s fiberglass windows are designed to maximize thermal performance through thoughtful design. For example, these replacement windows feature multi-chamber frames and multiple panes of insulating glass, making it easier and less costly to heat and cool your home.


You’ll have numerous customization options to choose from, allowing you to create fiberglass windows that are perfectly suited to the exterior and interior of your home. For example, the fiberglass windows we install can be tailored with your choice of frame color, glass, and hardware. You can also count on your new fiberglass windows to look beautiful long into the future, as they resist fading and require minimal care to keep clean.

Get Started Today

When you turn to Valdicass to install premium fiberglass windows in your La Grange, IL, home, you can be sure they will be installed correctly the first time. Our technicians have extensive experience and are factory-trained and –certified. Our steadfast effort to provide seamless, expert installations has allowed us to become a Pella Elite Platinum Certified Contractor—an elite certification that only the best window installers earn.

Learn more about the benefits of choosing us to install fiberglass windows in your home. Contact us today.

Read Our Rave Reviews

Valdicass has earned numerous positive reviews for our outstanding service. Read about our customers’ pleasant experiences working with us, then contact us today to learn how we can improve your home. 

“From our first meeting, we knew Valdicass was better than the other teams we were getting quotes from. They took far more measurements and called out small imperfections and problems with the house that may be an issue, which the other companies hadn't even noticed. Our new doors and windows are already making a huge impact on our winter energy bills, and the whole team did a wonderful and meticulous job!”

David S.

“Valdicass installed new windows at my house, and my wife and I couldn't be happier. The quality of the windows are great. Their communication, installation and sales team were really excellent to work with. Their cleanup was also excellent. They arrived on time and completed the job in a shorter timeframe than I would have expected. I would definitely recommend to anybody!”

Bob P.

“I have worked with Valdicass in the past with windows in a prior home and was so pleased that we used them again at our current home. The installers arrived on time and got to work right away. They were also very professional, took care of my furniture very well, and left everything clean after they were done. It’s been over a month since the installation and the windows are working perfectly and look great too. I recommend Valdicass for your next project as you will not be disappointed.”

Eddie G.
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8920 W 47th St
Brookfield, IL 60513

(708) 255-5231

Mon - Fri: 9:00AM - 5:00PM
Saturday: 9:00AM - 3:00PM (By Appointment Only)
Contact Us Today To Request a Free Consultation