Build Your Project Right the First Time.
- 25+ Years
- Made In The U.S.A.
- Proven in the Field
Trusted by Professionals. Proven in the Field.
A Permanent Waterproofing System - Built into the Structure.
Most waterproofing failures occur beneath the surface, Long before tile or finishes ever show signs of damage.
FyberLok Is a permanent waterproofing system designed to become part of the underlying structure, creating a continuous, sealed foundation before tile is installed.
Once complete, the system is protected beneath the finished surface, delivering long-term performance without peeling, cracking, or surface-level failure.
FyberLok System Applied (Before Tile)
Finished Tile Over FyberLok System
Real Results. Zero Leaks.
"20 years in my 2 houses with 7 showers, 1 laundry room, and 2 outdoor patio decks. Priceless!!!"
"Excellent work and price"
"A huge thanks to Tim and Damon on repairing a crack in my fiberglass pool shell in Wappingers falls NY when others have failed. if you are in need of anything fiberglass I highly recommend think fiberglass as your first call. Thanks guys"
Choose Your FyberLok Waterproofing Kit
Everything you need for permanent waterproofing - sized to fit your project.
About our story
FyberLok isn’t just another waterproofing system — it’s the result of over 25 years of real-world experience in shower installations.
Our story begins with Think Fiberglass, a small, family-owned company that has specialized in installing fiberglass shower pans and waterproofing systems across countless homes for more than two decades. In all those years, our method has proven itself: thousands of installs, zero leaks.
We created FyberLok to bring that same level of reliability and craftsmanship directly to homeowners and contractors in a way that’s simple, accessible, and cost-effective. Each kit is built around our proprietary fiberglass + resin system, designed to bond seamlessly into your structure and form a watertight base that’s ready for tile in as little as 12 hours.
Why FyberLok? Because it’s not theory. It’s not untested. It’s the exact same system we’ve used day in and day out for decades. By turning our proven process into an easy-to-use kit, we’ve made professional-grade waterproofing available to everyone whether you’re remodeling your own shower or managing a construction project.
With FyberLok, you’re not just buying materials. You’re investing in years of expertise, a proven track record, and the peace of mind that your shower will stay dry for decades to come.