Ceiling is wet on the ground entry level. Checked the water pressure and got a reading of 85psi. Cut open the ceiling to access the area, found a pinhole leak to be coming from the hot water supply line. Shut off the water and drained the system. Cut out the damaged section of pipe and replaced. Removed and replaced the pressure regulator valve. Turned on the water and pressurized the system. No further leaks detected at this time. The water pressure to the home is now within standards with a setting of 65psi.