Skip to main content

Mount the Shower Valve — Install the New Shower Valve

Intermediate6 hours

Part of project

Shower Valve Installation: A Complete DIY Guide with Plumbing Tips · Step 4 of 6

Helpful?

In this video

Secure the main shower valve body to a 2x4 wood brace positioned between the wall studs. Confirm the valve is oriented correctly with the 'UP' marking facing the ceiling. This standard orientation places the hot water inlet on the left and the cold water inlet on the right. The valve's position must be set so its front face will extend correctly past the future finished wall surface, which includes the backer board and tile. You can use the manufacturer's protective plastic cover or a depth gauge to accurately determine this placement.

Goal: Shower Fixture Installation

  • Use a level to ensure the valve and the brace it's mounted on are perfectly level and plumb.

Used in this video

  • Power Drill (Tool Type: Drill, Power Source: Cordless)Driving screws to secure the valve and wood brace.
  • 2x4 Lumber (Tool Type: Lumber, Material: Wood)Creating a solid mounting brace for the shower valve within the wall cavity.
  • Measuring Tape (Tool Type: Measuring Tools, Power Source: Manual)Measuring the placement for the brace and valve.
  • Level (Tool Type: Measuring Tools, Power Source: Manual)Ensuring the valve and framing are plumb and level.
  • Moen Shower Valve (brand: Moen, Tool Type: Plumbing Fixtures, Material: Brass)The central component that mixes hot and cold water.
46.0K views29430 minutes
AdamDIY

236K subscribers

View Channel

FAQs

I'm hesitant about soldering copper pipes. Are there alternative connection methods for a shower valve that are easier for a DIYer?

Yes, for those uncomfortable with soldering, push-to-connect fittings (like SharkBite) or crimp connections are excellent alternatives. While often more expensive than traditional copper fittings, they significantly simplify the installation process by eliminating the need for a torch and solder, making them very DIY-friendly. Ensure you purchase fittings compatible with your pipe type (PEX, copper, CPVC).

What crucial safety precautions should I take, especially when using a torch for soldering near walls or inside the shower enclosure?

When soldering, always have a fire extinguisher or a bucket of water nearby, and use a heat shield or flame protector to protect surrounding studs and finishes from the torch's flame. Ensure the work area is well-ventilated and that pipes are completely drained and dry before applying heat. Always wear appropriate personal protective equipment, including safety glasses and gloves.

What is the most common mistake DIYers make during a shower valve installation, and how can I avoid it?

A common mistake is not fully draining the pipes before attempting to solder, leading to steam pockets that prevent a good joint. To avoid this, ensure the main water supply is off and all nearby faucets are open to completely empty the lines. Another error is not properly using plumber's tape or thread sealant on threaded connections, which can lead to leaks.

The estimated time is 6 hours, but I'm a beginner. How much extra time should I realistically budget, and what part typically takes the longest?

As a beginner, it's wise to budget 8-10 hours or even a full weekend, especially if you're new to soldering or working in tight spaces. The steps that often consume the most time are ensuring all old components are fully removed without damage, accurately measuring and cutting new pipes, achieving clean solder joints, and thoroughly testing for leaks before closing up the wall.

Mount the Shower Valve — Shower Valve Installation: A Complete DIY Guide with Plumbing Tips (Step 4, Video 2) | Stesso