Customer had water damage to ceiling above dinning room table. Opened ceiling to inspect for leak and found that leak was coming from behind shower valve. Proceeded to open drywall in laundryroom to expose valve for secondary bathroom. Ran water and found that the copper line tying into bottom of shower valve was not properly soldered and was leaking. Removed section and re soldered. Also re tightened loose shower head arm. Ran water in bathroom for several minutes and didn’t see any further leaks.