stesso

Project

With the old valve exposed, you can now remove it. Identify the hot supply, cold supply, shower riser (to the shower head), and tub spout pipes. Using a tubing cutter, make clean, straight cuts on all four copper pipes connected to the valve body. Ensure you leave enough pipe extending from the wall (at least a few inches) to connect the new valve. Once all pipes are cut, the old valve body should be free to be removed from the wall cavity.

You're viewing a step from: How to Install a Two-Handle Shower Valve

Intermediate

30 minutes

2/4 Inventory

This guide provides comprehensive, step-by-step instructions for removing an old two-handle shower valve and installing a new one. The process involves accessing the plumbing within the wall, cutting and preparing pipes, soldering the new valve into place, testing for leaks, and installing the final trim. This task requires intermediate to advanced plumbing skills, particularly copper pipe soldering.

Based on content fromThis Old House· 2.2M subscribers

Frequently Asked Questions

What are the most critical skills and tools required for this project, especially for a beginner?

The most critical skill is copper pipe soldering, as the new valve needs to be securely joined. Essential tools include a pipe cutter (like the AUTOCUT 1/2 in. Copper Pipe Tubing Cutter), a soldering torch kit, flux, solder, and safety glasses (HDX Indoor Safety Glasses). Practice soldering on scrap pipe if you're new to it.

How can I ensure I don't cause water damage or other issues during installation?

Always shut off the main water supply to your house before starting any plumbing work. After soldering, pressurize the system and carefully inspect all new connections for leaks before closing up the wall. Use Kleenex Paper Towels to dab around joints and confirm they are completely dry.

What's a realistic timeframe and difficulty level I should expect for this shower valve replacement?

This project is rated intermediate due to the necessary soldering and gaining access to the plumbing within the wall. For an experienced DIYer, it might take 4-6 hours, but beginners should budget a full day (8+ hours) to account for learning, careful work, and potential troubleshooting.

Are there alternatives to soldering the new shower valve if I'm not comfortable with a torch?

Yes, you can use push-to-connect (e.g., SharkBite) or PEX crimp fittings as alternatives to soldering. These methods require different tools like a PEX crimper or just the specific fittings themselves. While often quicker, they can be more expensive than traditional copper soldering and may result in a bulkier installation.