How To Install Shower Plumbing Fixtures
Upgrading your shower plumbing fixtures can enhance both functionality and aesthetics in your bathroom. Whether you’re replacing an old showerhead, installing a new valve, or upgrading your entire system, proper installation is essential to ensure efficiency and prevent leaks. Follow this step-by-step guide to install your shower plumbing fixtures correctly.
Step-by-Step Installation Guide
Step 1: Shut Off the Water Supply
Before starting, turn off the water supply to the shower. If you can’t locate a dedicated shut-off valve, turn off the main water supply to your home. Open the shower faucet to drain any remaining water in the pipes.
Step 2: Remove the Old Fixtures
Use an adjustable wrench to unscrew and remove the old showerhead. If you’re replacing the valve, you may need to remove the trim plate and handle with a screwdriver. If replacing the tub spout, loosen it by twisting counterclockwise with a pipe wrench. Be careful to avoid damaging the surrounding wall.
Step 3: Install the New Shower Valve (If Applicable)
If you’re upgrading your shower valve, you may need to access the plumbing behind the wall. Cut an access hole if necessary. Use a pipe cutter to remove the old valve and solder or thread the new valve into place. Ensure it is positioned correctly according to manufacturer instructions. Secure it firmly before closing the access panel.
Step 4: Attach the New Showerhead
Wrap the shower arm threads with plumber’s tape to create a watertight seal. Screw the new showerhead onto the arm by hand, then tighten it slightly with a wrench. Avoid over-tightening, as this can cause damage.
Step 5: Install the Handle and Trim Plate
If your new fixture includes a handle and trim plate, follow the manufacturer’s instructions for installation. Typically, the trim plate is secured with screws, and the handle is attached to the valve stem using a set screw. Ensure everything is tightly secured and aligned properly.
Step 6: Replace or Install a Tub Spout (If Applicable)
If your shower includes a bathtub spout, install the new spout by wrapping the threads with plumber’s tape and screwing it into place. If it’s a slip-on type spout, secure it with the provided set screw.
Step 7: Seal Around the Fixtures
Apply silicone sealant around the trim plate, handle, and any openings in the shower wall to prevent water from seeping behind them. Smooth the sealant with a damp finger or a tool for a clean finish.
Step 8: Turn On the Water and Test
Turn the water supply back on and check for leaks. Test the showerhead, handle, and tub spout to ensure proper function. If there are any leaks, tighten connections as needed or apply more plumber’s tape.

Tools Needed
- Adjustable wrench
- Pipe wrench
- Screwdrivers (Phillips and flathead)
- Plumber’s tape (Teflon tape)
- Pipe cutter (if replacing pipes)
- Drill and appropriate drill bits
- Silicone sealant
- Measuring tape
- Plumber’s putty
- New shower fixtures (showerhead, valve, handles, spout)
- Bucket and rags
Trust Oliver for Professional Plumbing Services
While installing shower plumbing fixtures can be a rewarding DIY project, it requires precision to avoid leaks and ensure long-term reliability. If you’re unsure about any step or encounter unexpected issues, trust the experts at Oliver. Our professional plumbers have the experience and tools to handle all your bathroom plumbing needs efficiently. Contact us today for top-quality plumbing services and enjoy a hassle-free installation.


