Contact Us Residential Customer Service: WM Customer Service: 1611 S. Washington Kennewick, WA 99337 Phone: 877-466-4668 Email: WM Customer Service Mail Residential Service Payments to: Waste Management Residential Billing PO Box 541008 Los Angeles, CA 90054-1008 Commercial Garbage, Recycling and Billing Commercial Customer Service: Phone: 877-466-4668 Mail Commercial Service Payments to: WM Commercial Billing PO Box 541065 Los Angeles, CA 90054-1065 Instrucciones en español WM offers an easy way to pay your garbage bill online. NEED HELP? CHAT NOW M-F 7 am - 7 pm Sat 8 am - 12 pm We'd Like to Hear From You! Your questions, compliments and comments are important to us. Click here to send us an e-mail. WM Customer Service Report a Problem See an error on the site? Or, ways it can be improved? Let us know - Click here