How Do You Change a Shower Drain Step by Step?

AvatarByColleen Barnes Bathroom Maintenance

Changing a shower drain might seem like a daunting task, but with the right approach, it can be a manageable and rewarding DIY project. Whether you’re dealing with a slow drain, leaks, or simply upgrading your bathroom’s fixtures, understanding how to change a shower drain is essential for maintaining a functional and attractive shower space. This process not only improves drainage efficiency but can also prevent water damage and costly repairs down the line.

Before diving into the specifics, it’s important to grasp the basics of shower drain components and how they interact with your plumbing system. From various types of drains to the tools and materials needed, there’s a lot to consider to ensure a smooth replacement. This overview will help you build confidence and set the stage for a successful installation.

As you explore the steps involved in changing a shower drain, you’ll discover practical tips and common pitfalls to avoid. Whether you’re a seasoned DIYer or a first-time homeowner, gaining a clear understanding of this task can empower you to take control of your bathroom maintenance and enhance your home’s overall functionality.

Removing the Old Shower Drain

Begin by removing any drain cover or strainer from the existing shower drain. Use a screwdriver or wrench depending on the type of fastener securing it. Once the cover is off, assess how the drain is attached to the shower base.

If the drain has a locking mechanism or set screws, loosen these carefully. In many cases, the drain body will be threaded into the drain pipe or flange below. To loosen a threaded drain, apply a drain wrench or adjustable pliers, turning counterclockwise. Use steady force to avoid damaging the surrounding shower base.

For drains sealed with plumber’s putty or silicone, you may need to cut through the sealant with a utility knife. Be cautious not to damage the shower pan surface. If the drain is glued or cemented into place (common with PVC or ABS pipes), removal may require cutting the pipe with a hacksaw or reciprocating saw. Ensure the water supply is off and the area dry before proceeding.

Dispose of the old drain and any remaining debris in accordance with local regulations. Thoroughly clean the drain opening and surrounding area to prepare for the new installation.

Installing the New Shower Drain

When selecting a new shower drain, ensure compatibility with your shower pan and drainpipe. The new drain should match the pipe material and size, typically 1.5 or 2 inches in diameter.

Follow these steps to install the new drain:

  • Apply a generous bead of plumber’s putty or silicone sealant around the underside of the new drain flange.
  • Insert the drain into the shower pan drain hole, pressing firmly to create a watertight seal.
  • From underneath, attach the drain body or locking nut. Hand-tighten initially, then use a wrench to secure it fully without over-tightening, which can crack the shower base.
  • If the drain uses a threaded connection, ensure the threads are clean and apply plumber’s tape to prevent leaks.
  • Reattach the drain cover or strainer.

Test the installation by running water and checking for leaks around the drain connection. If leaks appear, tighten connections or reapply sealant as necessary.

Tools and Materials Needed for Drain Replacement

The following list outlines essential tools and materials required for a smooth drain replacement:

  • Adjustable wrench or drain wrench
  • Screwdriver (flathead or Phillips)
  • Utility knife
  • Hacksaw or reciprocating saw (if pipe cutting is needed)
  • Plumber’s putty or silicone sealant
  • Plumber’s tape (Teflon tape)
  • Replacement shower drain kit
  • Bucket or container for water drainage
  • Rags or towels for cleanup
Tool/Material Purpose Recommended Type
Adjustable Wrench Loosening and tightening drain nuts Medium size with rubber grip
Utility Knife Cutting sealant and trimming excess putty Sharp blade with replaceable tips
Plumber’s Putty Sealing drain flange to shower base Non-hardening, waterproof
Plumber’s Tape Sealing threaded pipe connections PTFE, white tape
Replacement Shower Drain Kit New drain assembly Size and material matching existing drain

Preparing to Replace the Shower Drain

Before beginning the process of changing a shower drain, it is essential to gather the appropriate tools and materials and ensure the work area is properly prepared. This preparation minimizes complications and guarantees a smooth installation.

  • Tools Required:
    • Adjustable wrench or pipe wrench
    • Drain removal tool or pliers
    • Putty knife or scraper
    • Plumber’s putty or silicone sealant
    • Measuring tape
    • Bucket and rags for water cleanup
    • Screwdriver set
    • Hacksaw (optional, if cutting pipe is necessary)
  • Materials Needed:
    • Replacement shower drain assembly compatible with your shower type
    • New plumber’s putty or silicone sealant
    • Pipe thread seal tape (Teflon tape)

Additionally, it is important to turn off the water supply to the shower area to avoid leaks during the process. Remove any shower doors or curtains and clear the surrounding area to allow easy access to the drain.

Removing the Existing Shower Drain

The removal of the old shower drain requires careful attention to avoid damaging the shower base or plumbing.

  1. Clear the Drain Cover: Remove any visible screws or fittings holding the drain cover in place. If the cover is glued or sealed, gently pry it up using a putty knife.
  2. Loosen the Drain Flange: Use a drain removal tool or pliers to grip and unscrew the drain flange. Turning counterclockwise typically loosens the drain. If the flange is corroded or stuck, apply penetrating oil and allow it to sit before attempting removal again.
  3. Remove Residual Sealant: After removing the flange, scrape away any old plumber’s putty or silicone from the drain opening and surrounding shower base. This ensures a clean surface for the new drain installation.
  4. Inspect the Drain Pipe: Look into the drain pipe for damage or debris. Clean out any obstructions to ensure proper drainage after installation.

Installing the New Shower Drain Assembly

Installing the new drain requires precision to ensure a watertight seal and proper alignment with the existing plumbing.

Step Action Details
1 Apply Plumber’s Putty Roll a rope of plumber’s putty about 1/2 inch thick and place it around the underside of the new drain flange. This creates a watertight seal between the flange and the shower base.
2 Insert Drain Flange Position the flange into the drain opening, pressing firmly to seat it evenly and squeeze out excess putty, which can be wiped away.
3 Attach Lock Nut From beneath the shower base, screw the lock nut onto the drain flange’s threaded pipe. Hand-tighten initially, then use a wrench to secure firmly without overtightening, which could crack the base.
4 Seal Threaded Connections Wrap Teflon tape around the threads of the drain pipe before attaching to the plumbing to prevent leaks.
5 Connect Drain to Waste Pipe Attach the drain tailpiece to the existing waste pipe, ensuring a snug fit. Use appropriate fittings if necessary.

In cases where plumber’s putty is unsuitable (e.g., for stone shower bases), use a high-quality silicone sealant instead, applying a bead around the flange before installation.

Testing and Final Adjustments

After installing the new shower drain, it is crucial to verify that the assembly is watertight and functions correctly.

  • Water Test: Run water through the shower drain for several minutes, observing for any leaks beneath the shower base or around the drain flange.
  • Check Drain Flow: Ensure water drains efficiently without pooling or slow drainage, which could indicate an obstruction or improper installation.
  • Tighten Connections: If leaks are detected, tighten all connections carefully. For persistent leaks, disassemble the drain and inspect seals, reapplying plumber’s putty or sealant as needed.
  • Clean Up: Remove any excess plumber’s putty that has squeezed out, and clean the shower base surface to restore appearance.

Once the drain installation passes these tests, reinstall any removed shower doors or curtains, and the shower is ready for normal use.

Professional Insights on How To Change A Shower Drain

Linda Martinez (Certified Plumbing Technician, National Plumbing Association). When changing a shower drain, it is crucial to first ensure the water supply is turned off and the area is dry. Proper removal of the old drain requires loosening any sealant or corrosion carefully to avoid damaging the surrounding shower base. Selecting the correct replacement drain that matches the pipe size and material is essential for a watertight fit and long-term durability.

James O’Connor (Master Plumber and Instructor, Plumbing Trade Institute). The key to a successful shower drain replacement lies in thorough preparation and attention to the drain’s flange and gasket. After removing the old drain, cleaning the drain opening and applying a high-quality plumber’s putty or silicone sealant ensures a secure seal. Additionally, verifying that the new drain aligns properly with the existing plumbing prevents leaks and future maintenance issues.

Sophia Chen (Home Renovation Specialist and Author, “Modern Bathroom Solutions”). When undertaking a shower drain change, it is important to consider the type of shower pan and drain system in place. For tiled showers, extra care must be taken to preserve the waterproof membrane beneath the drain. Using appropriate tools to remove the drain without damaging the shower floor and carefully reinstalling the new drain with compatible materials will maintain the integrity of the shower’s waterproofing.

Frequently Asked Questions (FAQs)

What tools do I need to change a shower drain?
You will need a drain wrench or pliers, a screwdriver, plumber’s putty, a new drain assembly, a utility knife, and possibly a hacksaw if the old drain is corroded or stuck.

How do I remove the old shower drain?
First, remove the drain cover. Use a drain wrench or pliers to unscrew the old drain flange by turning it counterclockwise. If it is stuck, apply penetrating oil and carefully cut around the flange if necessary.

Can I replace a shower drain without removing the shower base?
Yes, most shower drains can be replaced from above without removing the shower base, provided you have access to the drain flange and the drain pipe underneath is intact.

What type of sealant should I use when installing a new shower drain?
Use plumber’s putty or a silicone-based sealant to create a watertight seal between the drain flange and the shower base.

How do I ensure the new shower drain is properly sealed?
Apply plumber’s putty evenly around the underside of the drain flange before installation. Tighten the flange securely and wipe away excess putty. Test for leaks by running water after installation.

How long does it typically take to change a shower drain?
Changing a shower drain usually takes between 30 minutes to 1 hour, depending on the condition of the old drain and your familiarity with plumbing tasks.
Changing a shower drain is a manageable task that requires careful preparation, the right tools, and attention to detail. The process typically involves removing the old drain, cleaning the surrounding area, and installing a new drain that fits securely and creates a watertight seal. Proper measurement and selection of the replacement drain are crucial to ensure compatibility with your existing plumbing and shower base.

It is important to follow safety precautions and use appropriate materials such as plumber’s putty or silicone sealant to prevent leaks. Taking the time to properly align and tighten the drain assembly will help maintain the integrity of your shower’s drainage system and avoid future water damage. Additionally, understanding the type of drain you have—whether it is a slip joint, threaded, or a pop-up style—can simplify the replacement process.

Overall, changing a shower drain can be completed successfully with patience and precision. By adhering to best practices and using quality components, you can ensure a durable and effective drain installation that enhances the functionality and longevity of your shower. When in doubt, consulting a professional plumber is advisable to guarantee the job is done correctly and safely.

Author Profile

Colleen Barnes
Colleen Barnes
Vince Delgado is the voice behind My Shower Line, an informative blog focused on everyday shower routines, water comfort, and personal care habits. Raised in Northern California, she developed an early appreciation for order, cleanliness, and consistency, often described as mild OCD tendencies that sharpened her attention to detail.

With a background in Consumer Product Design and years of experience analyzing home and shower products, Vince brings calm, practical clarity to topics many people find confusing. Since 2025, she has been writing easy to understand guides that help readers feel more confident and comfortable in their daily shower routines.