Homeowner states that he has a water mark in the garage ceiling and has a infrared camera and would use the camera after a shower to see if it was cold and yes it would be colder but not all the time and called us out to come and attempted to find the leak. Upon arrival I greeted homeowner and he showed me to the garage and I could see the water mark and took me upstairs to see both bathrooms. The tub and shower are back to back so there isn’t any space to open the drywall and access the tub so I cut the ceiling water mark in basement. Upon opening I could see the tub and ran the spout normally but didn’t get any water. Then I used the body sprayer to get water above the overflow, tub spout and handle area. As soon as I got the area wet there was water dripping down in the garage right were the water mark was. I could see there was a lot of caulking around the spout and handle trim. I recommended removing the trim and seeing if there was an issue with installation which homeowner agree