Fiberglass Windows

Start your project today!
Get a FREE In-Home Consultation
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form. Please check your entry and try again.
Contact Us
fiberglass windows
glider windows

Longevity, Security, and Energy Efficiency

For those who value energy efficiency and longevity in their windows, fiberglass is by far one of the best window material choices. It is weather- and dent-resistant, very easy to clean, and can keep your energy bills noticeably low for a long period of time. As far as maintenance is concerned, you’ll never have to refinish fiberglass window frames. Fiberglass windows also require little to no natural resources to produce, making them one of the more eco-friendly options commercially available.

Main Advantages of Fiberglass Windows


Fiberglass frames require little to no natural resources to produce, making them a more eco-friendly option for consumers than wood.


One of the biggest selling points of fiberglass frames is that they are able to maintain their shape and color for a very long time.


Because fiberglass is so stable, it is less likely to warp and break the seal between the frame and glass. This will help keep your energy bills low. Moreover, fiberglass is capable of holding more glass panes, which in turn can boost your home’s insulation value even more.


And if the insulation value of fiberglass isn’t enough to convince you, fiberglass has two very distinct, very versatile style options. You can opt for a wooden veneer finish or a painted one. Either option allows for further future customization, which ultimately lends to your home’s overall style.
Ready to Choose Your Fiberglass Window?
Contact us or visit our showroom in Pleasanton today!
Buy 4 Windows, Get 1 Window FREE
Learn More About Our Window Special
Buy a Whole-House of James Hardie Siding, Get 5 FREE Infinity from Marvin Windows
Learn More About Our Siding
Five-Star Reviews

Read Our Testimonials

"Loved working with Custom Exteriors. Very responsive to inquiries. Precise in their measurements, estimate and timeframe for completion. Highly recommend them."

Brian I.

Tampa, FL

"Custom Exteriors provided a great product and good service in replacing 2 sliding glass doors and 2 other windows in my townhouse.  One was a custom window that required extra work in refitting the plantation shutters to the new window.  Although there were some bumps along the way, Jeff and his foreman Ryan excelled at follow up.  I would recommend Custom Exteriors."

Carole N.

Tampa, FL

"Custom Exteriors did a wonderful job. The installation crew were neat and thorough. My salesman Mark kept me informed about delivery and the windows are beautiful, quiet and warm house.  I’m very pleased."

Susan G.

Tampa, FL