Contact Us
0
Close

Categories

Filters

    Let Us Help

    Our Service is #1

    85th Anniversary Sale

    Hydro-Blok

    HYDRO-BLOK: The Smarter, Simpler Way to Waterproof Bathrooms At Dupont Kitchen & Bath, we proudly carry HYDRO-BLOK, an industry leader in premium waterproofing solutions for tiled showers, wet rooms, and steam spaces. Whether you're renovating a bathroom, building a curbless shower, or designing a high-end spa environment, HYDRO-BLOK offers a ... Show more

    Brands

    Lead Times & Sizes

    Price

    -
    14 Products
    Hydro-Blok - 36" x 60" x ½" Wallboard

    Hydro-Blok - 36" x 60" x ½" Wallboard

    The Hydro-Blok 36" x 60" x ½" Wallboard offers a waterproof, mold-resistant solution for wet area walls. Lightweight and tile-ready, it simplifies installation in showers and bathrooms.

    In stock
    C$ 71.40 Excl. tax
    Hydro-Blok - Joint Sealant Sausages 20 oz.

    Hydro-Blok - Joint Sealant Sausages 20 oz.

    Hydro-Blok Joint Sealant Sausages (20 oz.) offer effective, durable waterproofing for bathroom and shower installations. Easy to apply, mold-resistant, and compatible with Hydro-Blok products for reliable, long-lasting seals.

    In stock
    C$ 34.62 Excl. tax
    Hydro-Blok - Mixing Valve Seal, 9¼" Diameter, 4½" Opening

    Hydro-Blok - Mixing Valve Seal, 9¼" Diameter, 4½" Opening

    The Hydro-Blok Mixing Valve Seal (9¼" diameter, 4½" opening) ensures a watertight barrier around mixing valves in showers, preventing leaks and moisture damage. Durable and easy to install for secure, lasting waterproofing.

    In stock
    C$ 25.05 Excl. tax
    Hydro-Blok - Standard Curb 84" x 3½" x 4" - HBSC312484

    Hydro-Blok - Standard Curb 84" x 3½" x 4" - HBSC312484

    The Hydro-Blok Standard Curb (84" x 3½" x 4") provides a waterproof, mold-resistant barrier for shower installations. Lightweight and easy to install, it’s tile-ready and ideal for creating durable shower enclosures.

    In stock
    C$ 225.94 Excl. tax
    Hydro-Blok - Screws and Washers (100 per box)

    Hydro-Blok - Screws and Washers (100 per box)

    Hydro-Blok Screws and Washers (100 per box) provide a secure, corrosion-resistant fastening solution for waterproof wallboard installations. Easy to install and compatible with Hydro-Blok products, they ensure long-lasting durability in wet areas.

    In stock
    C$ 43.82 Excl. tax
    Hydro-Blok - Sausage Gun Replacement Tip

    Hydro-Blok - Sausage Gun Replacement Tip

    The Hydro-Blok Sausage Gun Replacement Tip offers precise, controlled sealant application, ensuring watertight results. Durable and reusable, it’s an essential tool for waterproofing bathrooms and wet areas with Hydro-Blok systems.

    In stock
    C$ 2.39 Excl. tax
    Hydro-Blok - Sausage Gun with 3 Plastic Tips

    Hydro-Blok - Sausage Gun with 3 Plastic Tips

    Maximize your sealing efficiency with the Hydro-Blok Sausage Gun, designed for 20oz sealant sausages. Features durable aluminum construction and includes 3 interchangeable tips for precise, controlled applications. Ideal for professional and DIY projects.

    In stock
    C$ 55.97 Excl. tax
    Hydro-Blok - Joint Sealant Cartridges 10 oz

    Hydro-Blok - Joint Sealant Cartridges 10 oz

    Hydro-Blok Joint Sealant Cartridges (10 oz.) ensure reliable waterproofing for shower and wet room installations. Easy to apply, mold-resistant, and designed to create durable, watertight seals for Hydro-Blok products.

    In stock
    C$ 19.53 Excl. tax
    Hydro-Blok - Cartridge Gun

    Hydro-Blok - Cartridge Gun

    The Hydro-Blok Cartridge Gun (HBCARTGUN) offers precise, even sealant application for waterproofing projects. Durable and easy to use, it’s ideal for applying Hydro-Blok sealants in bathrooms and wet areas.

    In stock
    C$ 37.97 Excl. tax
    Hydro-Blok - Standard Putty Knife

    Hydro-Blok - Standard Putty Knife

    The Hydro-Blok Standard Putty Knife (HBSPK) offers precise application for waterproofing projects. With durable construction, ergonomic design, and smooth, even finishes, it’s perfect for showers and bathrooms.

    In stock
    C$ 3.60 Excl. tax
    Hydro-Blok - Sealant Cleaning Wipes

    Hydro-Blok - Sealant Cleaning Wipes

    Hydro-Blok Sealant Cleaning Wipes (HBWIPE10) provide fast, efficient cleanup of uncured sealant. Safe on hands, durable, and easy to use, they’re perfect for waterproofing projects in showers and bathrooms.

    In stock
    C$ 11.40 Excl. tax
    Hydro-Blok - 24 sq ft Floor Lowering Joist Clip Kit

    Hydro-Blok - 24 sq ft Floor Lowering Joist Clip Kit

    The Hydro-Blok 24 sq ft Floor Lowering Joist Clip Kit simplifies installation of barrier-free showers. This durable, easy-to-install kit lowers joists for flush floors, ideal for accessible bathrooms.

    In stock
    C$ 273.12 Excl. tax

    Hydro-Blok

    HYDRO-BLOK: The Smarter, Simpler Way to Waterproof Bathrooms

    At Dupont Kitchen & Bath, we proudly carry HYDRO-BLOK, an industry leader in premium waterproofing solutions for tiled showers, wet rooms, and steam spaces. Whether you're renovating a bathroom, building a curbless shower, or designing a high-end spa environment, HYDRO-BLOK offers a complete line of building panels, shower bases, niches, and benches engineered for watertight performance and effortless installation.

    Designed in Canada and built to exceed industry standards, HYDRO-BLOK's waterproofing system offers contractors and homeowners a smarter alternative to traditional mortar bed methods. With its lightweight, easy-to-handle components and proven XPS foam + waterproof membrane construction, HYDRO-BLOK systems help create tiled showers that are beautiful, fast to install, and built to last.


    Engineered for Efficiency. Certified for Peace of Mind.

    HYDRO-BLOK products feature a closed-cell XPS (extruded polystyrene) foam core, factory-laminated with a robust, waterproof cementitious coating. This combination offers an ideal substrate for tile installation while providing:

    • 100% waterproof performance

    • Excellent compressive strength and rigidity

    • Thermal insulation

    • Mold- and mildew-resistance

    Tested to meet ANSI A118.10 and A118.12 standards, HYDRO-BLOK is suitable for use in residential, commercial, and hospitality environments—including steam showers and barrier-free spaces.


    HYDRO-BLOK Systems at Dupont Kitchen & Bath

    1. Shower Bases & Curbs

    HYDRO-BLOK pre-sloped shower pans eliminate the need for time-consuming mortar beds. Bases are available in multiple sizes and drain placements, including:

    • Center drain

    • Linear drain

    • Off-center configurations

    Custom installations are easy with HYDRO-BLOK's cut-to-fit design and easy extension kits.

    Curbs are available in standard and low-profile formats to support traditional and barrier-free showers.

    2. Wall Panels & Waterproof Boards

    Panels come in various sizes and thicknesses and are ideal for:

    • Shower walls

    • Bathtub surrounds

    • Wet rooms

    • Bench and partition construction

    These lightweight, tile-ready panels are easy to cut and secure with HYDRO-BLOK’s proprietary washers and screws.

    3. Shower Niches & Benches

    Create storage and seating without added framing:

    • Ready-to-tile niches in multiple sizes

    • Floating or framed benches with strong load capacity

    • Corner shelves and soap dishes

    All accessories are factory-sealed for watertightness and surface bonding compatibility.

    4. Linear & Standard Drain Systems

    HYDRO-BLOK’s integrated drain assemblies simplify installation and ensure leak-proof connections:

    • ABS and PVC drain kits

    • Integrated bonding flanges

    • Linear drain grates in multiple finish options


    Why Builders and Renovators Prefer HYDRO-BLOK

    HYDRO-BLOK is a contractor favorite because it reduces time on site without sacrificing quality or performance:

    • Fast, intuitive installation

    • Minimal tools required

    • Pre-sloped and precision-cut components

    • Industry-tested, building-code approved

    Its modular design allows for creative freedom—ideal for:

    • Barrier-free and ADA-compliant showers

    • Steam room projects

    • High-end tiled spa showers


    Installation Support with Dupont Kitchen & Bath

    We support contractors, designers, and homeowners with:

    • Full HYDRO-BLOK system planning

    • In-stock shower bases, curbs, wall panels, and drains

    • On-site and showroom demonstrations

    • Installation support through Amethyst Plumbing, our trusted partner


    HYDRO-BLOK vs. Traditional Systems

    FeatureHYDRO-BLOKTraditional Mud Bed Systems
    Waterproof out of the box✅ Yes❌ No – requires membranes
    Installation timeFast (1-2 days)Long (3-5 days with curing)
    WeightLightweightHeavy and labor-intensive
    Tile-ready surfacePre-primed, cement coatingRequires layering and waterproofing
    Mold resistanceClosed-cell foam = no moldMortar = porous, mold risk

    Visit Dupont Kitchen & Bath for HYDRO-BLOK

    Located at 2397 Eglinton Ave West, Toronto, our showroom features HYDRO-BLOK displays and hands-on training options. Whether you're tackling your first walk-in shower or you're a contractor outfitting an entire condo development, we have the stock, expertise, and technical support to guide you.


    What Customers Say

    “HYDRO-BLOK cut our installation time in half. It’s lightweight, easy to cut, and the system just works. Will never go back to traditional boards.” – Mike H., Contractor

    “We installed a curbless HYDRO-BLOK system for our ensuite. Perfect slope, clean look, and peace of mind knowing it's waterproofed properly.” – Jasmine B., Homeowner


    Build Smarter. Build Drier. Build with HYDRO-BLOK.

    At Dupont Kitchen & Bath, we believe every tiled shower should be watertight, efficient to build, and built to last. HYDRO-BLOK offers the perfect waterproofing system for today's bathrooms—backed by Canadian engineering and contractor-proven performance.


    Contact Us

    Shop HYDRO-BLOK systems at www.dupontplumbing.com or visit our showroom to speak with an expert. From pre-sloped pans to full steam room builds, we'll help you get it right from the ground up.

    Compare 0

    Add another product (max. 5)

    Start comparison

    Subscribe to Dupont's Newsletter for Inspiration, Tips, and Promos

    * indicates required
    Which of the following best describes you?
    Please accept cookies to help us improve this website Is this OK? YesNoMore on cookies »