Commercial Plumbing Service

A leaking shower can be more than just an annoyance—it can lead to higher water bills, structural damage, and mold growth. Fortunately, fixing a leaking shower is often something you can do yourself without the need for expensive plumbing services. In this guide, we’ll walk you through the steps to diagnose and fix common shower leaks, helping you save water, money, and stress.

Common Causes of a Leaking Shower

Before diving into the solution, it’s important to identify the source of the leak. Here are some of the most common causes of a leaking shower:

1. Leaky Showerhead
   If water continues to drip from the showerhead after turning off the tap, you may have a worn-out washer or O-ring that needs replacing. This is typically an easy fix.
2. Faulty Shower Valve
   A worn-out or damaged shower valve can cause water to leak behind the wall. This is a more serious issue as it can lead to hidden water damage.
3. Cracked Grout or Tiles
   Cracks in the grout or tiles in your shower can allow water to seep through, causing leaks that may damage the walls or floors underneath.
4. Worn-Out Shower Tray or Seals
   Over time, the sealant around the shower tray can degrade, allowing water to escape. This can cause water to pool around the base of the shower and leak onto the floor.

How to Fix a Leaking Shower: Step-by-Step

Once you’ve identified the source of the leak, it’s time to fix the problem. Below are solutions for the most common causes of a leaking shower:

1. Fixing a Leaking Showerhead

A dripping showerhead is usually caused by worn-out washers or O-rings inside the faucet.

Steps:

1. Turn off the Water Supply: Make sure to shut off the water supply to the shower before you begin any repairs.
2. Disassemble the Showerhead: Unscrew the showerhead from the pipe, and check the rubber washer or O-ring inside. If it’s damaged or worn out, it will need to be replaced.
3. Replace the Washer or O-Ring: Purchase a new washer or O-ring from a hardware store, making sure it matches the size of the old one.
4. Reassemble the Showerhead: Reattach the showerhead and turn the water back on to test if the leak is fixed. If the leak persists, the issue may lie with the shower valve.

2. Fixing a Leaky Shower Valve

The shower valve regulates the flow of water from the pipes to your showerhead. If the valve is faulty, it can cause leaks behind the wall, which may require more extensive repairs.

Steps:

1. Turn Off the Water Supply: As with any plumbing repair, always turn off the water supply to avoid flooding.
2. Remove the Shower Handle and Escutcheon Plate: Use a screwdriver to take off the shower handle, followed by the escutcheon plate (the decorative cover on the wall).
3. Inspect the Valve: Once the valve is exposed, check for any signs of corrosion, cracks, or wear.
4. Replace the Valve Cartridge: If the valve cartridge is faulty, it will need to be replaced. You can purchase a replacement from a hardware store, but make sure to bring the old one for comparison.
5. Reassemble the Shower: Once the valve has been replaced, reattach the escutcheon plate and shower handle. Turn the water back on and test for any leaks.

3. Replacing Cracked Grout or Tiles

Cracks in the grout or tiles can allow water to seep through, potentially damaging the underlying wall and floor.

Steps:

1. Remove the Damaged Grout: Use a grout removal tool to scrape out the damaged grout between the tiles.
2. Apply New Grout: Once the old grout has been removed, apply new grout using a rubber float. Make sure to fill all the gaps evenly.
3. Seal the Grout: After the grout has dried (typically within 24 hours), apply a grout sealer to protect it from water damage in the future.
4. Replace Cracked Tiles: If a tile itself is cracked, carefully remove it using a chisel and replace it with a new one. Use tile adhesive to secure the new tile and re-grout around it.

4. Resealing the Shower Tray or Shower Screen

Over time, the sealant around your shower tray or shower screen can wear down, leading to leaks at the base of the shower.

Steps:

1. Remove Old Sealant: Use a utility knife or sealant removal tool to carefully scrape away the old, worn-out sealant.
2. Clean the Area: Make sure the area is clean and dry before applying new sealant. Use rubbing alcohol or a suitable cleaning agent to remove any residue.
3. Apply New Silicone Sealant: Apply a thin, even bead of silicone sealant along the joints where the shower tray or screen meets the tiles and walls. Use a caulk tool or your finger to smooth the sealant.
4. Let It Dry: Allow the sealant to dry for at least 24 hours before using the shower to ensure a watertight seal.

5. When to Call a Professional

While many shower leaks can be fixed with DIY methods, there are situations where it’s best to call a professional plumber, such as:

• Hidden Leaks Behind Walls: If you suspect a leak behind your walls but can’t identify the source, it’s best to call in an expert to avoid further damage.
• Extensive Water Damage: If water damage has spread to floors, walls, or other parts of your home, a professional may be needed to assess and repair the structural damage.
• Plumbing Replacements: If the plumbing system itself is outdated or faulty, a professional can provide a more comprehensive repair or replacement.

Final Thoughts

A leaking shower can lead to costly water damage if left unchecked, but with the right tools and know-how, most shower leaks are easy to fix. By addressing the issue early and following the steps outlined above, you can prevent further damage and keep your shower functioning smoothly.