
Changing a water tub divider to a shower can be a transformative upgrade for any bathroom, offering both functionality and modern aesthetics. This project involves removing the existing tub and divider, installing a shower base or tiles, and adding essential components like a showerhead, valves, and possibly a door or curtain. While it requires careful planning, basic plumbing and tiling skills, and the right tools, the end result can significantly enhance your bathing experience and increase the value of your home. Whether you’re a DIY enthusiast or hiring a professional, understanding the steps involved ensures a smooth transition from tub to shower.
| Characteristics | Values |
|---|---|
| Project Difficulty | Moderate to High (requires plumbing and construction skills) |
| Tools Required | Screwdriver, wrench, utility knife, drill, saw, measuring tape, level, caulk gun |
| Materials Needed | Shower kit (showerhead, valve, pipes), shower door/curtain, waterproof membrane, tiles/wall panels, mortar, grout, caulk |
| Time Estimate | 1-3 days (depending on experience and complexity) |
| Cost Range | $500 - $2,500+ (varies based on materials and labor) |
| Key Steps | 1. Remove tub divider and fixtures 2. Install shower valve and plumbing 3. Build shower curb (if needed) 4. Waterproof walls and floor 5. Install tiles or wall panels 6. Add shower door/curtain and accessories |
| Permits Required | Often needed for plumbing and structural changes (check local codes) |
| Common Challenges | Ensuring proper waterproofing, aligning tiles, and managing plumbing connections |
| Benefits | Increased accessibility, modern aesthetic, potential home value increase |
| Alternatives | Tub-to-shower conversion kits (simpler but less customizable) |
| Professional Help | Recommended for plumbing and complex installations |
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What You'll Learn
- Tools Needed: Gather screwdriver, pliers, new shower kit, silicone sealant, and measuring tape for installation
- Remove Old Divider: Unscrew and detach the water tub divider carefully to avoid damaging the tub
- Install Shower Base: Position and secure the shower base, ensuring proper alignment and waterproofing
- Attach Shower Walls: Fit and seal shower walls, using silicone to prevent leaks and ensure durability
- Connect Plumbing: Attach showerhead, faucet, and drain pipes, testing for leaks before final use

Tools Needed: Gather screwdriver, pliers, new shower kit, silicone sealant, and measuring tape for installation
Before embarking on the transformation of your tub divider into a shower, it's essential to gather the necessary tools to ensure a smooth and efficient installation process. The first tool you'll need is a screwdriver, which will be used to remove any existing screws or fasteners holding the tub divider in place. Opt for a screwdriver with interchangeable heads to accommodate different screw types, as this will save you time and effort. Additionally, having a pair of pliers on hand will prove invaluable for gripping and turning stubborn nuts, bolts, or pipes that may be hidden behind the divider.
The centerpiece of your project is the new shower kit, which typically includes a showerhead, shower arm, flange, and other necessary components. When selecting a shower kit, ensure it's compatible with your existing plumbing and meets your desired aesthetic and functionality. Carefully review the manufacturer's instructions and specifications to guarantee a proper fit and installation. Keep in mind that some kits may require additional components or modifications, so it's essential to plan ahead and have everything ready before starting the installation.
To ensure a watertight seal and prevent leaks, you'll need silicone sealant, which will be applied to the joints and connections between the shower components and the surrounding walls. Choose a high-quality, waterproof silicone sealant specifically designed for bathroom applications, as this will provide long-lasting protection against moisture and humidity. Before applying the sealant, make sure to clean and dry the surfaces thoroughly to ensure proper adhesion. A caulking gun may also be necessary to apply the sealant evenly and efficiently.
Accurate measurements are crucial for a successful installation, which is why a measuring tape is an indispensable tool for this project. You'll need to measure the distance between the existing plumbing connections, the height of the showerhead, and the overall dimensions of the shower area to ensure the new components fit seamlessly. Take multiple measurements to confirm accuracy and make any necessary adjustments before proceeding with the installation. By having a measuring tape on hand, you'll be able to avoid costly mistakes and ensure a precise, professional-looking result.
As you gather your tools, take a moment to familiarize yourself with each component and its intended use. Lay out all the tools and materials in a organized manner, ensuring easy access during the installation process. By being prepared and having everything within reach, you'll minimize the risk of interruptions or delays, allowing you to focus on the task at hand. With the screwdriver, pliers, new shower kit, silicone sealant, and measuring tape at the ready, you'll be well-equipped to tackle the challenge of converting your tub divider into a functional and stylish shower.
In addition to the primary tools, consider having a few supplementary items on hand to facilitate the installation. A level will help ensure the shower components are installed straight and true, while a utility knife or scissors can be used to trim excess sealant or packaging materials. A bucket and rags are also essential for cleaning up any debris or spills that may occur during the installation. By anticipating these needs and having the necessary tools and materials readily available, you'll be able to navigate the installation process with confidence and ease, ultimately achieving a successful and satisfying transformation of your tub divider into a refreshing shower experience.
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Remove Old Divider: Unscrew and detach the water tub divider carefully to avoid damaging the tub
Before you begin the process of transforming your water tub into a shower, the first crucial step is to remove the old divider. This task requires precision and care to avoid any damage to the tub or surrounding areas. Start by gathering the necessary tools, such as a screwdriver, pliers, and possibly a utility knife, depending on how the divider is attached. Inspect the divider to identify all the screws, bolts, or adhesive points that secure it in place. Understanding the attachment method will help you work more efficiently and safely.
Once you’ve identified the fasteners, unscrew them methodically. Begin with the screws or bolts at the top of the divider, working your way down. If the screws are rusted or difficult to turn, apply a penetrating oil to loosen them. Use the appropriate screwdriver or drill bit to avoid stripping the screw heads. For dividers held by caulk or adhesive, carefully slide a utility knife along the edges to break the seal without scratching the tub’s surface. Take your time with this step, as rushing can lead to unnecessary damage.
As you detach the divider, be mindful of its weight and size. Larger dividers may require an extra pair of hands to prevent it from dropping and cracking the tub or tiles. Hold the divider firmly as you remove the last few screws or release it from the adhesive. If the divider is attached to a track or frame, ensure you also remove any additional components that are no longer needed for the shower conversion. Lay the divider aside carefully, as you may need to dispose of it later.
After the divider is fully detached, inspect the tub for any remaining adhesive, caulk, or debris. Use a scraper or mild abrasive pad to clean the area, ensuring a smooth surface for the shower installation. If there are any holes or marks left by the screws, fill them with a waterproof sealant or tub repair kit to maintain the tub’s integrity. This step is essential for both aesthetic and functional purposes, as a clean surface will ensure proper adhesion for new shower components.
Finally, double-check that all remnants of the old divider are removed. This includes any hidden screws, adhesive residue, or small fragments that could interfere with the shower installation. Once the area is clean and clear, you’re ready to proceed with the next steps of converting your tub into a shower. Taking the time to carefully remove the old divider sets a strong foundation for a successful and durable transformation.
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Install Shower Base: Position and secure the shower base, ensuring proper alignment and waterproofing
When installing a shower base as part of converting a tub divider to a shower, the first step is to ensure the area is prepared and clean. Remove any debris or residue from the tub area, and verify that the subfloor is level and structurally sound. If the subfloor is uneven, use a self-leveling compound to create a flat surface, as proper alignment is critical for both functionality and waterproofing. Once the area is ready, position the shower base in the desired location, ensuring it fits snugly against the walls and aligns with the drain opening. Double-check the manufacturer’s instructions for specific placement guidelines, as some bases may require slight adjustments for optimal fit.
Next, secure the shower base to the subfloor using an appropriate adhesive or screws, depending on the base material and manufacturer recommendations. For acrylic or fiberglass bases, apply a bead of silicone adhesive along the bottom edges, pressing the base firmly into place. For tile-ready bases, use a waterproof mortar bed or thin-set to secure it. Ensure the base is level by using a spirit level, making adjustments as needed before the adhesive sets. Proper alignment at this stage prevents water pooling and ensures efficient drainage.
Waterproofing is a critical step in this process. Apply a waterproofing membrane to the walls and edges surrounding the shower base, extending it onto the base itself to create a seamless barrier. Use a paintbrush or roller to apply the membrane in thin, even coats, following the product instructions for drying times and additional layers. Pay special attention to corners and seams, as these areas are prone to leaks. Some systems may require a fabric mesh for added strength, especially in curved or angled areas.
After waterproofing, test the shower base for leaks by filling it with water and letting it sit for 24 hours. Inspect the area below the base for any signs of moisture. If leaks are detected, drain the water, identify the source of the issue, and reapply waterproofing as needed. Once the base is confirmed to be leak-free, proceed with installing the drain assembly according to the manufacturer’s instructions, ensuring a tight seal to prevent water from escaping.
Finally, integrate the shower base with the surrounding walls and flooring. If tiling the walls, ensure the tiles overlap the base slightly to maintain waterproofing integrity. For pre-fabricated wall panels, seal the edges with silicone caulk to create a watertight bond. Test the shower again after completing the installation to ensure all components are functioning correctly. Proper positioning, securing, and waterproofing of the shower base are essential steps in successfully converting a tub divider to a shower, ensuring durability and long-term performance.
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Attach Shower Walls: Fit and seal shower walls, using silicone to prevent leaks and ensure durability
When attaching shower walls as part of converting a tub divider to a shower, precision and attention to detail are crucial to ensure a watertight and durable installation. Begin by measuring the area where the shower walls will be installed, ensuring accuracy to avoid gaps or misalignment. Most shower wall kits come with panels that need to be trimmed to fit your specific space. Use a utility knife or a fine-toothed saw to cut the panels to size, following the manufacturer’s instructions. Double-check the fit by holding the panels in place before applying any adhesive or sealant.
Once the shower walls are properly fitted, clean the surfaces where the panels will attach to remove any dust, debris, or soap scum. This ensures better adhesion and a professional finish. Apply a high-quality silicone adhesive or construction adhesive to the back of the shower panels or directly to the wall, following the product’s guidelines for application. Press the panels firmly into place, using a level to ensure they are straight and even. If the panels are heavy or large, consider using temporary supports or clamps to hold them in position until the adhesive sets.
Sealing the shower walls is a critical step to prevent water leaks and mold growth. Apply silicone caulk along all edges, corners, and seams where the panels meet the wall, floor, or each other. Use a caulking gun to apply a consistent bead of silicone, and then smooth it with a wet finger or a caulk-smoothing tool for a clean finish. Pay special attention to areas where the panels meet the shower base or bathtub edge, as these are common spots for leaks. Allow the silicone to cure fully according to the manufacturer’s instructions before using the shower.
To enhance durability and water resistance, consider applying a waterproof membrane behind the shower walls, especially if your walls are made of drywall or cement board. This extra layer acts as a secondary barrier against moisture. After the walls are installed and sealed, test the shower by running water and checking for any signs of leakage. If you notice any gaps or areas where water seeps through, reapply silicone caulk to those spots and allow it to cure again.
Finally, maintain the integrity of your shower walls by regularly inspecting the silicone seals and reapplying caulk as needed over time. Silicone can degrade due to exposure to moisture and temperature changes, so periodic maintenance is essential to prevent leaks. By carefully fitting, sealing, and maintaining your shower walls, you’ll ensure a long-lasting and leak-free conversion from a tub divider to a shower.
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Connect Plumbing: Attach showerhead, faucet, and drain pipes, testing for leaks before final use
When converting a tub divider to a shower, connecting the plumbing is a critical step that requires precision and attention to detail. Begin by attaching the showerhead to the existing water supply lines. Ensure the showerhead is compatible with your plumbing setup and use Teflon tape or pipe thread sealant on the threads to prevent leaks. Tighten the connections securely, but avoid over-tightening to prevent damage to the fittings. If your showerhead includes a handheld component, connect the flexible hose to the diverter valve, which allows you to switch between the fixed showerhead and the handheld unit.
Next, install the faucet handles and valves. Connect the hot and cold water supply lines to the corresponding faucet inlets, using compression fittings or soldered joints depending on your plumbing system. Double-check that the valves are aligned correctly to ensure proper water flow and temperature control. Secure all connections with appropriate tools, such as wrenches or pliers, and insulate exposed pipes to prevent condensation and improve energy efficiency.
The drain system is another essential component. Remove the existing tub drain and replace it with a shower drain, ensuring it fits securely into the drain hole. Connect the drain pipe to the P-trap, which prevents sewer gases from entering the bathroom. Use PVC or ABS piping, depending on your local plumbing codes, and secure the joints with solvent cement for a watertight seal. Ensure the drain pipe slopes slightly toward the P-trap to facilitate proper water flow.
Once all connections are made, test the plumbing for leaks before finalizing the installation. Turn on the water supply and check each joint, fitting, and connection for any signs of moisture. Pay close attention to areas like the showerhead, faucet handles, and drain pipes. If leaks are detected, tighten the connections or reapply sealant as needed. Run water through the showerhead and faucet to ensure proper flow and temperature mixing, and verify that the drain functions correctly without clogs or backups.
Finally, insulate any exposed pipes to prevent freezing in colder climates and secure all components according to manufacturer instructions. Once everything is leak-free and functioning properly, you can proceed with finishing touches, such as tiling or installing a shower door. Properly connecting and testing the plumbing ensures a safe, efficient, and long-lasting shower conversion from your existing tub divider.
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Frequently asked questions
You’ll typically need a screwdriver, wrench, pliers, utility knife, silicone caulk, and possibly a drill. Check the specific requirements of your shower kit for additional tools.
Yes, if you’re handy and comfortable with DIY projects. However, plumbing and waterproofing require precision, so hiring a professional is recommended for complex installations.
Turn off the water supply, disconnect the plumbing, and carefully pry or unscrew the divider. Be cautious not to damage surrounding tiles or walls.
Choose a shower door or curtain based on your space and style preferences. Ensure proper waterproofing and consider a curved or sliding door for smaller bathrooms.
Apply waterproof membrane or tiles to the walls, use silicone caulk for seams, and ensure the shower pan or floor is properly sealed to prevent leaks.











































