Replacing a shower head is a job you can do yourself with just an adjustable wrench or pliers—no plumber needed

A shower head replacement takes about 15 minutes and requires only one tool. You unscrew the old head by hand or with a wrench, wrap the new threads with plumber's tape, and screw the new head on. The whole job costs between $20 and $100 depending on the head you choose, and you will not need to turn off the water or drain any pipes. If you have ever tightened a jar lid, you have the skill to do this.

Most shower heads come off by hand. If yours is stuck, a wrench on the hexagonal nut below the head will loosen it in seconds. The tape prevents leaks at the connection, and hand-tightening plus one quarter-turn with a wrench is all the force you need. Over-tightening is the most common mistake—it can crack the fitting and create a worse problem than the one you started with.

Key Takeaways

  • Most shower heads unscrew by hand; if it is stuck, use an adjustable wrench or pliers on the hexagonal nut just below the head itself.
  • Wrap the threads of the new head with plumber's tape (also called PTFE tape or Teflon tape) to prevent leaks where the head meets the arm.
  • Hand-tighten the new head first, then use a wrench to snug it another quarter-turn—over-tightening can crack the fitting.
  • If water leaks from the connection after installation, turn the head another half-turn with a wrench rather than replacing it again.

What you will need before you start

Gather these items before you touch the old shower head. You need an adjustable wrench or a pair of pliers (the kind with adjustable jaws work best), a roll of plumber's tape, and your new shower head. Plumber's tape costs about $3 at any hardware store and comes in a small roll that lasts for dozens of projects.

You do not need to turn off the water supply. You do not need a bucket or towels—water will drip for a few seconds when you unscrew the old head, but that is all. If you want to catch those drips, place a cup under the shower arm while you work.

How to remove the old shower head

Start by trying to unscrew the head by hand. Grip it close to where it meets the shower arm and turn counterclockwise. Most heads come off this way without any tools. If it turns freely, keep going until it is completely off.

If the head will not budge, use your wrench or pliers. Look just below the shower head where it connects to the arm—you will see a hexagonal nut (six-sided). Place the wrench on that nut and turn counterclockwise. Do not grip the shower head itself with the wrench; grip only the nut. Once the nut loosens, you can usually finish unscrewing by hand. A small amount of water will drip from the arm—this is normal and stops within seconds.

Preparing the threads with plumber's tape

Before you install the new head, wrap the threads on the shower arm with plumber's tape. This tape seals the connection and prevents leaks. Hold the roll of tape against the threads and wrap it clockwise around the arm three to four times, overlapping each wrap slightly. The tape should cover all the threads but not extend onto the smooth part of the arm.

Plumber's tape is thin and stretches as you wrap it. Do not worry about making it perfect—it is forgiving. If you wrap it counterclockwise by mistake, it will unravel as you screw the head on, so just start over. The tape costs almost nothing, so use a fresh section if you mess up the first try.

Installing the new shower head

Start by hand-threading the new head onto the arm. Turn it clockwise until it is snug but not tight. You should be able to turn it with your fingers without straining. At this point, the head may not be perfectly aligned with the wall—that is fine.

Now use your wrench to tighten it one more quarter-turn (90 degrees). This is the critical step: one quarter-turn is enough to seal the connection. Do not over-tighten. Over-tightening can crack the fitting inside the head or strip the threads, and then you will have a real problem. If you are unsure, tighten less rather than more—you can always tighten it further if it leaks.

Testing for leaks and adjusting the angle

Turn on the shower and let water run for 30 seconds. Look at the connection where the head meets the arm. If water drips from that joint, turn the head another half-turn with the wrench and check again. Most leaks stop after one additional half-turn.

Once the connection is dry, you can adjust the angle of the head if it is not pointing the way you want. Some heads have a ball joint that lets you swivel them; others are fixed. If yours swivels, adjust it by hand to the angle you prefer. If it is fixed and the angle is wrong, you can loosen it slightly with the wrench, rotate it, and tighten it again—but this is rarely necessary.

When to call a plumber instead

Call a plumber if the shower arm itself is cracked or leaking, if water sprays from inside the wall when you remove the old head, or if you cannot unscrew the old head even with a wrench. These are signs of problems beyond the head itself.

Also call a plumber if the new head leaks from the connection after you have tightened it a full turn. This usually means the threads are damaged or the arm is not straight, and forcing it tighter will only make it worse. A plumber can replace the arm or diagnose what is preventing a seal.

Frequently Asked Questions

Do I need to turn off the water before I replace the shower head?

No. Water will drip from the arm for a few seconds after you unscrew the old head, but that is all. You do not need to shut off the main water supply or drain the pipes. If you want to avoid the drips, place a cup under the arm while you work.

What is plumber's tape and where do I buy it?

Plumber's tape (also called PTFE tape or Teflon tape) is a thin white tape that seals threaded connections and prevents leaks. It costs about $3 and is sold at any hardware store, home center, or online. One roll lasts for many projects. It is not the same as duct tape or painter's tape.

Can I reuse the old shower head on a different shower?

Yes, if the old head still works. Unscrew it, soak it in vinegar for an hour to dissolve mineral buildup, and rinse it. You can then install it elsewhere using the same steps—just use fresh plumber's tape on the threads.

What if the shower head is leaking from the spray holes, not the connection?

That is a problem with the head itself, not the installation. Mineral deposits often clog the holes. Try soaking the head in vinegar overnight, then scrubbing the holes with an old toothbrush. If that does not work, the head needs to be replaced—the leak will not stop with tightening.

How tight should I make the connection?

Hand-tighten until snug, then use a wrench for one quarter-turn (90 degrees). That is it. If you can turn it easily with your fingers after the wrench, it is not tight enough. If you need to strain with the wrench, it is too tight. The goal is a firm seal, not maximum force.