<human>:  How can I find a trustworthy plumber?
<bot>: You can start by asking people you know for references or recommendations for plumbers they have used before. Check online reviews to see what other customers have said about the plumber's service. Make sure to check their qualifications, such as their license, to ensure that they are a qualified and trustworthy professional. Furthermore, ask for an estimate upfront for any work to ensure you’re getting a fair and reasonable rate.