When I turn on my faucet, it makes a chattering sound. Why? A When I turn on my faucet, it makes a chattering sound. Why? The washer in your faucet is loose and needs to be replaced. We have residential service trucks that are equipped with thousands of specialty parts specific to your needs. Efficiency from us = cost savings for you!Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment *Name * Email * Website Save my name, email, and website in this browser for the next time I comment.