How Do I Fix The Drain Pipe In My Wall?

How to Repair Cast Iron Drain Pipe In The Wall YouTube
How to Repair Cast Iron Drain Pipe In The Wall YouTube from

When you have a drain pipe in your wall, it can be incredibly frustrating when it starts leaking or breaks down. You may think it’s a job for a professional, but you can actually fix it yourself with the right tools and knowledge. In this guide, we’ll show you how to repair a drain pipe in your wall in a few simple steps.

Step 1: Turn off the water supply

The first step in fixing a broken drain pipe in your wall is to turn off the water supply. This will prevent water from leaking out of the pipe while you’re working on it, and it will also stop any further damage from occurring. Depending on the location of your pipe, you will either need to turn off the main water supply or just the one connected to the drain pipe.

If you’re not sure how to turn off the water supply, you can consult your local plumber for help. Alternatively, you can look up tutorials online or consult the manual for your home or building.

Step 2: Determine the cause of the problem

After you’ve turned off the water supply, you’ll need to determine the cause of the problem. This could be due to a broken or leaking pipe, or it could be something more serious such as a blockage or clog. In order to figure out the cause, you can use a camera to inspect the pipe, or you can use a plunger to try and dislodge any blockages.

If you’re not sure what the cause is, you can always call a plumber to inspect the pipe and advise you on the best course of action.

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Step 3: Purchase the necessary supplies

Once you’ve determined the cause of the problem, you can purchase the necessary supplies to get started. Depending on the issue, you may need to purchase a new pipe, connectors, a wrench, a sealant, plumber’s tape, or other supplies. Make sure you have a good understanding of the supplies you need and the sizes before you purchase them.

Step 4: Remove the old pipe

Now you’re ready to start the repair process. Begin by removing the old pipe from the wall. To do this, you will need to use a wrench to loosen the connections and unscrew the old pipe. Be careful not to damage the wall or any other pipes as you do this.

Once the old pipe has been removed, you can clean up any debris or water that may have spilled out. This will help to ensure that the new pipe is properly sealed when you install it.

Step 5: Install the new pipe

Once the old pipe has been removed, you can begin installing the new pipe. Start by connecting the new pipe to the existing plumbing. Make sure that the connections are secure and that all the pieces are properly fitted together. Once the new pipe is connected, you can use a sealant to ensure it is properly sealed.

Step 6: Test the pipe

Once you’ve installed the new pipe, you’ll need to test it to make sure it is working properly. Slowly turn the water supply back on and make sure that the new pipe is not leaking. If you notice any leaks, turn the water supply off and check the connections again.

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If the pipe passes the test, you can turn the water supply back on and use the drain pipe as normal.


Fixing a broken or leaking drain pipe in your wall can be a daunting task, but with the right tools and knowledge, you can do it yourself. Just remember to always turn off the water supply before you start, and make sure all the connections are properly sealed. If you’re ever in doubt, you can always consult a professional plumber for help.

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