A Better Shower Starts Beneath the Tile.
- 25+ Years
- Stony Point, NY
- Showers & Decks
Trusted by Professionals. Proven in the Field.
FyberLok™ Shower Waterproofing — Built into the Structure.
Most waterproofing failures occur beneath the surface, long before tile or finishes ever show signs of damage.
FyberLok™ is built for lasting waterproofing — 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 from Real Installs.
"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 FyberLok™ shower waterproofing — sized to fit your project.
Standard covers up to 35 sq. ft.; Plus covers up to 55 sq. ft. Allow for all surfaces you’ll waterproof—not just the floor footprint.
Help when you need it.
Your kit includes Install Portal videos for preparation and application. Scan the QR code on your kit to get started.
Explore shower layouts or ask us about your project.
Do I need the pitch built first?
Yes. Apply FyberLok over a prepared shower and final mud pitch; it does not create the slope.
What about my drain?
FyberLok connects to a standard three-piece clamping drain. Have us review linear-drain connections before ordering.
Can it cover a curbless entry or seat?
These layouts need extra coverage. Include seats, niches and the bathroom-floor extension at a curbless entry in your measurements.
Which surfaces can it go over?
Prepared mortar, cured concrete, sound wood or plywood, cement-based backer boards and cured fiberglass may be suitable. Preparation varies; confirm the specific board or an unusual surface with us first.
About our story
FyberLok isn’t just another waterproofing system — it’s the result of over 25 years of real-world experience leading with showers and decks.
Our story begins with Think Fiberglass, a small, family-owned company based in Stony Point, NY, serving Rockland, Orange, Westchester, and Putnam. For more than two decades we’ve specialized in fiberglass shower pans, deck waterproofing, and related installs across countless homes.
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 system, designed so overlaps bond into one solid shell and form a watertight base that’s ready for tile in 12–24 hours, depending on temperature.
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. By turning our proven process into an easy-to-use kit, we’ve made professional-grade waterproofing available 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 and a track record we stand behind.
Need it installed?
Shower and deck installation in Rockland, Orange, Westchester and Putnam Counties. Tell us about your project.