Moving a Shower Drain in Concrete Floor: A Comprehensive Guide
Are you planning to renovate your bathroom or change the layout of your shower? If your shower drain is located in a concrete floor, you might be wondering how to move it. Don't worry, it's possible, and this guide will walk you through the process step by step. Remember, working with concrete requires patience and the right tools. Let's dive in.
Understanding the Challenge: Concrete and Drain Pipes
Concrete is a strong and durable material, but it can also be challenging to work with. When it comes to moving a shower drain, you'll need to understand how the drain pipe is connected to the main sewer line. The drain pipe is typically made of PVC or ABS plastic, which is flexible and can be cut and glued. However, the concrete floor around it can make the process more complex.
Before You Start: Planning and Preparation
Before you grab your tools and start hacking away at your concrete floor, there are a few things you should do:

- Check Local Building Codes: Ensure that moving your drain is allowed and that you'll be able to obtain any necessary permits.
- Consult a Professional: If you're unsure about any aspect of the process, don't hesitate to consult a licensed plumber or structural engineer.
- Gather Your Tools: You'll need a concrete saw, a reciprocating saw, a hacksaw, a utility knife, safety glasses, ear protection, a dust mask, and heavy-duty gloves.
- Prepare the Area: Clear the area around the drain and cover nearby surfaces to protect them from concrete dust and debris.
Step 1: Locate and Expose the Drain Pipe
Start by turning off the water supply to your shower and the main water supply to your home. Then, locate the drain pipe in the concrete floor. You can do this by tracing the pipe from the shower drain to the main sewer line, or by using a stud finder or concrete scanner.
Once you've located the pipe, use a concrete saw to cut a square or rectangular hole around it. The hole should be large enough to expose several inches of the pipe on all sides. Be careful not to cut into the pipe itself.
Step 2: Cut and Remove the Concrete
Using a reciprocating saw with a concrete blade, cut the concrete around the drain pipe. Start at one corner of the hole and work your way around the pipe, cutting through the concrete and creating a square or rectangular chunk of concrete that can be removed.

Once you've cut all the way around the pipe, use a pry bar or a crowbar to lift the chunk of concrete out of the hole. Be careful, as this can be heavy and awkward to handle.
Step 3: Cut and Remove the Drain Pipe
Use a hacksaw or a reciprocating saw with a metal blade to cut the drain pipe. You'll need to cut the pipe on both sides of the concrete chunk you removed. This will allow you to move the pipe and reinstall it in its new location.
After cutting the pipe, use a utility knife to score and snap the pipe at the cut lines. Then, use a pipe cutter or a hacksaw to deburr the ends of the pipe.
Step 4: Move the Drain Pipe and Reinstall
Carefully move the drain pipe to its new location. You may need to bend the pipe to accommodate the new layout. Once the pipe is in place, use PVC cement to glue the couplings and fittings back onto the pipe. Make sure the joints are tight and the pipe is properly aligned.
Before turning the water back on, check for any leaks and make sure the pipe is secure.
Step 5: Replace the Concrete and Finish Up
Once you're satisfied that the drain pipe is properly installed, it's time to replace the concrete. You can either use a concrete patch kit or pour new concrete into the hole. Make sure the concrete is level with the surrounding floor.
Allow the concrete to cure for at least 24 hours before putting any weight on it. Then, you can finish up by cleaning the area and restoring any surfaces that were covered during the renovation.
Troubleshooting Common Issues
| Issue | Solution |
|---|---|
| Concrete is too hard to cut | Use a diamond blade on your concrete saw or rent a professional concrete cutting tool. |
| Pipe is leaking after reinstallation | Check all joints for proper alignment and use more PVC cement if necessary. If the leak persists, you may need to replace the pipe. |
| Concrete is not curing properly | Keep the concrete moist and away from extreme temperatures until it's fully cured. If necessary, consult a professional for advice on your specific concrete mix. |
Moving a shower drain in a concrete floor can be a challenging task, but with the right tools and a careful approach, it's definitely possible. Always remember to prioritize safety and don't hesitate to consult a professional if you're unsure about any aspect of the process.