Upon arrival, the customer informed me that a different contractor recently replaced the stems and a three handle shower valve. During my evaluation, I found that the stems were not installed properly, which caused the valve to leak. In addition, the shower valve itself is very old. I performed a water pressure test and found the home pressure to be 130 psi, which is significantly higher than the recommended range and can cause leaks, fixture damage, and potential major issues throughout the plumbing system. I explained these findings and the associated risk to the homeowner. For today, Mr. opted to only have the shower valve handle tightened. No additional repairs were authorized at this time.