Opened up customers drywall to the right of the doggy door to inspect customers plumbing in wall. Ran water in master bathroom and inspected drains and water lines. Did not see any leaks in the visible plumbing. Noticed customers hose bib on the exterior was dripping. I believe this was the results of the water seeping into the house. Replaced customers hose bib. Recommended turning off sprinklers and not using hose bib to see if water dries up. If water dies dry up then more than likely the issue was due to the hose bib and irrigation water build up seeping into the stucco and then entering the house. Quoted approximately 650.00 to patch and paint drywall opening.