A new shower head can make an old shower feel noticeably better, and replacing one is usually a simple job you can do with a few basic tools. The key is getting a snug, leak-free connection without twisting the shower arm inside the wall. Here’s how to choose the right replacement, remove the old head, and install the new one with confidence.
Table of Contents
What You’ll Need Before You Start
Most shower-head replacements take about 15 to 30 minutes. You usually don’t need to turn off the home’s main water supply, but make sure the shower faucet is off before you begin. If you share the bathroom, let others know not to turn it on while you’re working.
- A replacement shower head that fits your shower arm
- A soft cloth or rag to protect the finish
- An adjustable wrench or strap wrench, if the old head is stuck
- Plumber’s tape, also called PTFE tape, if the manufacturer recommends it
- A small brush or cloth for cleaning the threads
- A bucket or towel to catch drips
Many shower heads can be removed and installed by hand. Start that way. A wrench can help with a stubborn fitting, but too much force can damage the shower head or turn the shower arm where it connects inside the wall.
Choose a Shower Head That Fits
Before buying a new shower head, check how the current one connects. A standard fixed head screws onto the threaded shower arm that comes out of the wall. Handheld models usually connect to that same arm through a bracket or diverter, while some systems have a hose connection that needs a rubber washer.
Most shower heads sold for a particular country are made to fit common local plumbing threads, but fittings can vary, especially in older homes or with imported fixtures. If you’re unsure, take a photo of the connection or bring the old head to the hardware store. Check the product instructions for compatibility rather than forcing a fitting that doesn’t line up.
Think about how you use the shower
A fixed head is simple and has fewer parts to install. A handheld head gives you more reach for rinsing, cleaning the shower, or bathing a child or pet. A combination model offers both, but it has a hose and diverter that need a little more space.
Also consider the shower’s water pressure and the height of the shower arm. A large rainfall-style head may feel less forceful than a smaller head, even when both use the same amount of water. If the shower arm points downward, a bulky head may sit lower than you’d like. Check the product dimensions before you buy.
How to Replace a Shower Head Step by Step
1. Protect the shower and the fixture
Put a towel in the tub or shower floor to protect the surface and catch any small parts. If you’re using a wrench, wrap the jaws or the fitting with a soft cloth so the tool doesn’t scratch the finish.
Make sure the faucet is fully off. You don’t need to drain the pipes, but a little water may remain in the shower head or arm, so keep a cloth nearby.
2. Unscrew the old shower head
Try turning the old head counterclockwise by hand, looking at the connection from the shower-head side. If it won’t move, wrap the connection with a cloth and use an adjustable wrench or strap wrench. Apply steady pressure rather than jerking the tool.
Keep an eye on the shower arm as you loosen the head. The arm is connected to plumbing behind the wall, so twisting it hard can loosen or damage that hidden connection. If the arm starts turning with the head, stop and reassess. Don’t keep forcing it.
If mineral buildup has made the fitting difficult to remove, a strap wrench may give you grip without crushing or scratching it. Avoid using heat or strong chemicals; they can damage finishes and nearby materials.
3. Clean the shower-arm threads
Once the old head is off, wipe the threads at the end of the shower arm. Remove old plumber’s tape and loose grit with a cloth or small brush. Clean threads help the new head sit straight and seal properly.
Take a moment to check the arm for damage. If the threads are badly corroded, cracked, or misshapen, a new head may not seal against them. A damaged shower arm may need replacing, and if it turns freely or leaks where it enters the wall, it’s safer to get help from a plumber.
4. Check the washer and plumber’s tape instructions
Look inside the new shower head or its connector. Many models include a rubber washer that creates the seal. Make sure it’s present and seated flat. A missing or crooked washer is a common reason for leaks, especially on handheld hoses.
For a shower head that screws directly onto the shower arm, follow the manufacturer’s instructions about plumber’s tape. If tape is recommended, wrap it around the arm’s threads in the same direction the new head will turn as it tightens. That way, the tape stays in place instead of unwinding. A few neat wraps are generally enough; too much tape can make it harder to start the fitting straight.
Don’t automatically put tape on every connection. Some hose connections rely on a rubber washer, and extra tape may stop the fitting from seating correctly. The product instructions are the best guide.
5. Screw on the new shower head
Start the new head by hand. Turn it clockwise and keep it straight as the threads catch. If it feels crooked or stops after only a turn or two, back it off and try again. Forcing a cross-threaded fitting can damage the threads and cause a leak.
Once the head is seated, hand-tighten it until it feels snug. Many installations don’t need a wrench at all. If the instructions call for one, use a cloth to protect the finish and tighten only a little. The washer or thread seal—not extreme force—is what prevents leaks.
6. Turn on the shower and check for leaks
Turn on the shower slowly and let water run for a minute. Check around the connection between the head and shower arm. For a handheld model, also check both ends of the hose and the point where the hose connects to the bracket or diverter.
If you see a drip, turn the shower off and inspect the connection. The head may need to be tightened slightly, or it may have gone on crooked. If it still leaks, remove it and check that the threads are clean and the washer is in place. Don’t keep tightening harder; that can crack parts or damage the shower arm.
Common Problems and How to Fix Them
| Problem | Likely cause | What to check |
|---|---|---|
| A drip at the shower-arm connection | The head is loose, cross-threaded, or not sealed correctly | Remove it, clean the threads, check the tape instructions, and reinstall it straight |
| A leak at a handheld hose connection | The rubber washer is missing, damaged, or out of position | Check the washer and replace it if it’s worn |
| Low flow after installation | A clogged screen, debris, or a flow-control part may be affecting the water | Check the manual and clean the parts the manufacturer identifies |
| The shower arm turns or moves | The fitting behind the wall may be loose | Stop tightening; have the arm and wall connection checked |
If the new shower head has low flow
First, check whether the problem began only after the replacement. Small bits of sediment can get caught in the shower head’s inlet screen during installation. If the manual shows how to remove and clean that screen, follow its instructions.
Many shower heads also include a flow-control feature. Don’t remove it just to increase flow; it may be required for the product to work as designed or to meet local rules. If the shower has low pressure with both the old and new heads, the cause may be elsewhere, such as a partly closed valve, buildup in the plumbing, or a pressure issue that needs a closer look.
If the old shower head won’t come off
Try a strap wrench first, since it grips the fitting without biting into the finish. Keep the shower arm steady and apply gradual pressure. If the arm begins to twist, stop. A plumber can remove a seized fitting while reducing the risk of damaging the pipe inside the wall.
For a rental, check with the property owner or manager before replacing the fixture. Some leases require approval, and the original shower head may need to be kept for the next tenant.
When to Call a Plumber
Replacing the head is usually a manageable DIY task, but the shower arm is part of the plumbing behind the wall. Call a plumber if the arm is loose at the wall, water appears from behind the trim or wall, the threads are badly damaged, or you can’t remove the old head without twisting the arm.
It’s also worth getting help if the replacement uses a connection you don’t recognize or if the new head still leaks after you’ve checked its alignment and washer. A small leak at a visible joint is easy to spot; water escaping into a wall may go unnoticed and cause damage.
Read more related posts:
- How to measure for a shower curtain rod? right size easily
- Fix a Shower Head Leaking From Connection: Step-by-Step Guide
- Small Shower Head High Pressure: My Complete Review and Picks
Frequently Asked Questions
Do I need to turn off the water to replace a shower head?
Usually, no. Keep the shower faucet turned off while you work. You generally don’t need to shut off the home’s main water supply for this job.
Should I use plumber’s tape on a shower head?
Use it if the manufacturer recommends it for the threaded shower-arm connection. Don’t add tape to a connection designed to seal with a rubber washer, such as many handheld hose fittings.
How tight should a shower head be?
Start it by hand and tighten until it feels snug. If the instructions call for a wrench, use gentle pressure and protect the finish with a cloth. Overtightening can damage threads or crack parts.
Why is my new shower head leaking?
The most common causes are a crooked connection, dirty threads, too little or incorrectly applied tape where tape is needed, or a missing or misplaced washer. Remove the head, check those details, and reinstall it straight.
Conclusion
To replace a shower head, remove the old one carefully, clean the shower-arm threads, check the new head’s washer and instructions, then screw it on straight and snug. Run the shower and inspect every connection for leaks. Taking your time—and stopping if the shower arm starts to turn—can save you from a much bigger plumbing repair.
