How To Install A Concealed Shower Valve

Installing a concealed Shower Valve can give your bathroom a sleek and modern appearance by hiding the pipework behind the wall. 

Tools and Materials Required

Before starting the installation, prepare the following:

• Concealed shower valve

• Screwdrivers and adjustable wrench

• Drill and hole saw (for wall openings)

• Pipe cutter and PTFE tape

• Spirit level and measuring tape

• Screws, rawl plugs, and fixings

• Safety gloves and goggles

Step 1: Plan the Installation

1. Choose the location – Select the wall where the valve will be installed, usually at a comfortable height between 1000mm and 1200mm.

2. Check wall type – Ensure the wall is strong enough to house the concealed valve. Stud walls may require reinforcement.

3. Verify water supply – Confirm hot and cold supplies are available and positioned correctly.

Step 2: Cut the Opening

1. Mark the area where the shower valve will sit.

2. Use a drill and hole saw to create an opening large enough to fit the valve body.

3. Ensure the recess depth matches the valve specification so the faceplate sits flush with the wall once tiled.

Step 3: Connect the Pipework

1. Connect the hot water feed to the left inlet and the cold water feed to the right inlet.

2. Use PTFE tape on threaded connections to prevent leaks.

3. Tighten connections with an adjustable wrench, being careful not to overtighten.

4. Connect the outlet to the showerhead or diverter if multiple outlets are used.

Step 4: Fix the Valve in Position

1. Align the valve with a spirit level to ensure it is perfectly straight.

2. Secure the valve into the wall cavity with appropriate fixings.

3. Double-check all connections are tight and properly aligned.

Step 5: Test the Installation

1. Turn on the water supply and check for leaks.

2. Run both hot and cold supplies to ensure correct mixing and functionality.

3. Adjust flow and temperature if required.

Step 6: Seal and Finish

1. Once the valve is tested, cover it with the manufacturer’s backplate or protective cover.

2. Tile the wall around the valve, ensuring a neat and watertight finish.

3. Fit the decorative faceplate and handle(s).

4. Seal edges with waterproof silicone for added protection.

Safety Tips

• Always isolate the water supply before installation.

• Wear safety gloves and goggles when cutting walls and pipes.

• If you are not confident in plumbing work, consult a professional installer.

Conclusion

Installing a concealed shower valve is a practical way to modernize your bathroom while keeping the design minimal and stylish. By following the correct steps—planning, cutting the opening, connecting pipework, securing the valve, testing, and sealing—you can achieve a professional result. Proper installation ensures smooth operation, leak-free performance, and a polished finish that enhances your bathroom space.