Upgrade Your Bathroom: Replace Shallow Tub With Deeper Shower Tub

how to replace tub shower with deeper tub shower

Replacing a tub shower with a deeper tub shower can significantly enhance both the functionality and aesthetic appeal of your bathroom. This project involves careful planning, from selecting the right size and style of the new tub to ensuring proper plumbing and waterproofing. It’s essential to assess the existing space, measure accurately, and choose materials that complement your bathroom’s design. Hiring a professional plumber or contractor can streamline the process, especially for tasks like removing the old tub, installing the new one, and connecting the plumbing. Additionally, consider upgrading fixtures and adding features like built-in shelves or a rainfall showerhead to maximize comfort and convenience. With the right approach, this renovation can transform your bathing experience while adding value to your home.

Characteristics Values
Project Difficulty Moderate to Difficult (requires plumbing, tiling, and carpentry skills)
Estimated Time 2-5 days (depending on experience and scope)
Cost Range $1,500 - $5,000+ (materials and labor)
Tools Required Hammer, pry bar, screwdriver, utility knife, level, drill, saw, plumbing wrenches, tile cutter
Materials Needed Deeper tub/shower unit, tiles, mortar, grout, waterproofing membrane, plumbing fixtures
Steps Involved 1. Remove old tub/shower unit
2. Prepare subfloor and walls
3. Install new drain and plumbing
4. Set the new tub/shower unit
5. Waterproof walls
6. Tile walls (if applicable)
7. Install fixtures and test plumbing
Permits Required Typically yes (check local building codes)
Professional Help Recommended for plumbing and waterproofing to ensure compliance and longevity
Key Considerations Ensure new tub/shower fits space dimensions, check water pressure, and plan for drainage
Maintenance Tips Regularly clean tiles and grout, inspect for leaks, and maintain waterproofing
Popular Brands Kohler, American Standard, Delta, Moen, Jacuzzi
Eco-Friendly Options Low-flow showerheads, recycled materials, water-saving fixtures
Common Challenges Matching existing tile, dealing with outdated plumbing, ensuring proper waterproofing
Added Value to Home Increases bathroom functionality and aesthetic appeal, potentially boosting resale value

cyshower

Measure Space Accurately: Ensure new tub fits existing dimensions, including plumbing and surround

Accurate measurements are the cornerstone of a successful tub-to-shower replacement, preventing costly mistakes and ensuring a seamless fit. Begin by measuring the length, width, and height of your existing tub space, noting any irregularities in the walls or floor. Use a laser measure or a rigid tape measure for precision, and record dimensions to the nearest eighth of an inch. Pay special attention to the location of plumbing fixtures—drain, water supply lines, and shower valves—as these will dictate the placement of your new deeper tub. Sketch a rough diagram of the space, labeling all critical measurements and fixtures, to serve as a reference during the selection and installation process.

The surround—the area immediately adjacent to the tub—is equally critical. Measure the distance from the tub edge to the nearest walls, ensuring the new unit won’t obstruct tiles, fixtures, or electrical outlets. If your current surround is tiled or paneled, assess its condition; damaged or outdated materials may need replacement, which could alter the overall dimensions. Consider using a 3D modeling app or graph paper to visualize how the new tub will fit within the existing layout, accounting for any additional depth or width it may introduce. This step is particularly crucial if you’re upgrading to a deeper soaking tub, as even an inch of extra depth can impact surrounding elements.

Plumbing compatibility is another non-negotiable factor. Measure the distance from the floor to the center of the drain pipe, as well as the height and spacing of the water supply lines. Standard drain heights range from 10 to 12 inches, but deeper tubs may require adjustments to accommodate their increased volume. If your new tub has a different drain configuration, consult a plumber to ensure compatibility or plan for modifications. Similarly, verify that the water supply lines align with the new tub’s faucet and valve requirements, avoiding the need for extensive rerouting later.

For a foolproof approach, involve a professional during the measurement phase. A contractor or plumber can identify potential issues—such as load-bearing walls, hidden pipes, or structural constraints—that might affect your plans. They can also recommend tools like a stud finder or level to ensure accuracy. If you’re confident in your DIY skills, cross-check your measurements with the manufacturer’s specifications for the new tub, allowing for a 1-inch clearance on all sides for installation and maintenance. This buffer zone is essential for avoiding tight fits and ensuring proper ventilation.

Finally, consider the long-term implications of your measurements. A deeper tub may require additional support to handle its weight, especially if filled with water and occupied. Assess the subfloor’s condition and consult building codes to determine if reinforcement is necessary. By meticulously measuring and planning, you’ll not only ensure the new tub fits but also create a functional, safe, and aesthetically pleasing bathroom upgrade. Precision at this stage translates to peace of mind throughout the project.

cyshower

Remove Old Tub: Disconnect plumbing, break out old tub, clean area thoroughly

The first step in replacing your tub shower with a deeper model is removing the old tub, a process that requires careful planning and execution. Begin by disconnecting the plumbing to avoid water damage. Turn off the water supply at the main valve, then open the tub’s faucet to release any residual water. Use a wrench to detach the water supply lines, drainpipe, and overflow assembly. Cap the exposed pipes with thread seal tape and slip-on caps to prevent debris from entering the plumbing system. This step is critical—rushing it could lead to leaks or structural damage later.

Once the plumbing is disconnected, breaking out the old tub becomes the next challenge. Tubs are heavy and often secured with mortar or adhesive, so enlist a helper to avoid injury. Use a reciprocating saw to cut through caulk or silicone sealing the tub’s edges, then pry it loose with a crowbar. If the tub is mortared in place, chisel away the material carefully to prevent damaging surrounding tiles or walls. For cast-iron tubs, consider renting a tub-cutting tool to break it into manageable pieces. Dispose of the debris responsibly, checking local regulations for construction waste disposal.

With the old tub removed, cleaning the area thoroughly is essential to ensure a smooth installation for the new unit. Sweep away loose debris, then scrub the area with a mixture of water and mild detergent to remove soap scum, mildew, and residue. Inspect the subfloor for water damage or rot; replace compromised sections with pressure-treated plywood. If the area has been exposed to moisture for years, consider applying a mold-resistant primer to prevent future issues. A clean, dry surface is the foundation for a successful installation.

Practical tips can streamline this process. For instance, label disconnected pipes with tape to simplify reattachment later. If the tub is particularly stubborn, use a hairdryer to soften old caulk before prying. Always wear safety gear, including gloves and goggles, during demolition. Finally, take photos of the plumbing setup before disassembly—it’s a small step that can save hours of frustration during the reinstall. By approaching this phase methodically, you’ll set the stage for a deeper tub shower that not only looks better but functions flawlessly.

cyshower

Install New Drain: Position drain assembly correctly, seal to prevent leaks

A properly installed drain assembly is critical to the functionality and longevity of your new deeper tub shower. Misalignment or inadequate sealing can lead to leaks, water damage, and costly repairs. The drain assembly acts as the exit point for all water, so its precise positioning and secure sealing are non-negotiable.

Begin by verifying the manufacturer’s instructions for your specific drain assembly model. Most assemblies consist of a drain body, strainer, gasket, and locking nut. Position the drain body directly over the existing drain hole, ensuring it aligns with the tub’s slope to allow proper water flow. Use a level to confirm the assembly sits flush with the tub’s surface. If adjustments are needed, shim the drain body with thin washers or plumber’s putty, but avoid over-tightening, as this can warp the tub material.

Sealing is where many DIYers falter. Apply a bead of silicone caulk or plumber’s putty around the underside of the drain flange before insertion. This creates a watertight barrier between the drain and the tub. For added protection, wrap plumber’s tape around the drain threads before securing the locking nut. Tighten the nut hand-tight, then use a wrench to give it an additional quarter-turn—enough to ensure a snug fit without risking damage.

Test the seal before proceeding with tile or wall installations. Fill the tub with water and let it sit for at least an hour. Inspect the area beneath the tub for any signs of leakage. If water seeps through, disassemble the drain, reapply sealant, and retest. This step, though time-consuming, is far less costly than addressing leaks after the tub is fully installed.

Finally, consider the long-term maintenance of your drain assembly. Install a hair catcher or strainer to prevent clogs, and periodically inspect the drain for cracks or wear. A well-positioned and sealed drain not only ensures a leak-free shower experience but also preserves the structural integrity of your bathroom for years to come.

cyshower

Secure New Tub: Place tub, level it, and anchor securely to wall studs

Positioning your new, deeper tub correctly is the linchpin of a successful replacement project. Start by measuring the space meticulously, accounting for plumbing connections and ensuring the tub fits snugly against the walls. Use a level to check the floor’s slope—ideally, it should drain toward the existing drain hole. If adjustments are needed, shim the floor with plywood or mortar to create a stable base. Precision at this stage prevents future leaks and structural issues, turning a daunting task into a manageable step.

Leveling the tub is both an art and a science. Place shims beneath the tub’s feet, adjusting them incrementally until the tub is perfectly horizontal. A bubble level is your best tool here; place it along the tub’s edges and across its base to verify accuracy. Unevenness can lead to water pooling or stress on the tub’s frame, so take your time. Once level, secure the shims with silicone adhesive to prevent shifting during anchoring.

Anchoring the tub to wall studs is critical for stability and safety. Locate the studs using a stud finder, then mark their positions on the wall. Drill pilot holes through the tub’s flange into the studs, ensuring the holes align perfectly. Use corrosion-resistant screws or brackets to fasten the tub securely. Double-check that the tub remains level after anchoring, as tightening screws can sometimes disrupt alignment. This step transforms the tub from a freestanding fixture into an integrated part of your bathroom’s structure.

A common oversight is neglecting to test the tub’s stability before finalizing the installation. Once anchored, apply gentle pressure to the tub’s edges and corners to ensure it doesn’t wobble or shift. If movement occurs, recheck the anchors and shims. Properly securing the tub not only ensures longevity but also enhances safety, especially in deeper models where the risk of slipping is higher. With these steps completed, your new tub is ready for plumbing connections and finishing touches.

cyshower

Connect Plumbing: Attach water supply lines, test for leaks, and insulate pipes

Connecting the plumbing is a critical step in replacing a tub shower with a deeper model, ensuring functionality and longevity. Begin by attaching the water supply lines to the new tub’s fixtures, using flexible stainless steel braided hoses for durability and ease of installation. Tighten connections with an adjustable wrench, but avoid over-tightening to prevent damage. Pro tip: Apply plumber’s tape to threaded connections for a secure, leak-free seal. Once connected, turn on the water supply slowly to check for immediate leaks at joints and fittings. If leaks occur, shut off the water and re-tighten or replace faulty components before proceeding.

Testing for leaks is not a one-time task but a multi-stage process. After the initial check, let the system run for 10–15 minutes, then inspect all connections again. Pay close attention to areas where pipes meet the tub’s valves or walls, as these are common leak points. For a thorough test, fill the tub halfway and let it sit for an hour, then inspect the area beneath the tub for moisture. If you’re replacing an older system, consider upgrading to quarter-turn shutoff valves for better control and reliability during future maintenance.

Insulating pipes is often overlooked but essential, especially in colder climates. Wrap hot and cold water supply lines with foam pipe insulation to prevent heat loss and condensation buildup, which can lead to mold or water damage. Secure the insulation with duct tape or zip ties, ensuring no gaps expose the pipes. For added protection, insulate the exterior of the tub’s overflow and drain pipes, particularly if they run through unheated spaces like crawl areas or basements. This step not only improves efficiency but also reduces the risk of pipes freezing in winter.

A comparative analysis of DIY versus professional installation highlights the importance of precision in this phase. While attaching supply lines and testing for leaks may seem straightforward, improper installation can lead to costly water damage or mold issues. Professionals often use pressure gauges to test systems at higher PSI levels, ensuring long-term reliability. However, with careful attention to detail and the right tools, a skilled DIYer can achieve similar results. The key is patience—rushing through connections or skipping leak tests can undermine the entire project.

In conclusion, connecting plumbing for a deeper tub shower requires methodical execution and foresight. From selecting the right materials to thorough leak testing and insulation, each step contributes to the system’s performance and durability. Treat this phase as the backbone of your upgrade—done correctly, it ensures years of trouble-free use; done poorly, it becomes a recurring headache. Invest time here, and your deeper tub shower will not only look great but function flawlessly.

Frequently asked questions

Begin by measuring the existing space and researching deeper tub shower models that fit. Turn off the water supply, remove the old tub, and ensure the area is prepped for the new installation.

You’ll need a utility knife, pry bar, screwdriver, wrench, silicone caulk, plumber’s tape, and possibly a reciprocating saw. Materials include the new tub, shower valves, and plumbing supplies.

While DIY is possible for experienced homeowners, hiring a professional is recommended due to the complexity of plumbing and ensuring proper waterproofing and structural support.

The process typically takes 1-3 days, depending on the complexity of the installation, plumbing adjustments, and whether additional work like tiling or waterproofing is needed.

Consider the size of your bathroom, the depth and length of the tub, material durability, ease of cleaning, and whether it includes features like built-in shelves or jets. Ensure it complies with local building codes.

Written by
Reviewed by

Explore related products

Share this post
Print
Did this article help you?

Leave a comment