Home > Locations > Chatsworth, CA Chatsworth, CA Location Information 9428 Eton Avenue, Suite D/E Chatsworth, CA 91311-5866 Get directions Phone: (818) 846-1371 Fax: (818) 441-0080 ServiceAvailable onsite with appointment EvaluationAvailable onsite with appointment Normal Business Hours Monday - Friday 8:30 am to 5:00 pm After-Hours (Phone Support) Mon-Fri 5:00 pm - 12 am (EST) Sat-Sun 10:00 am - 7:00 pm (EST) (800) 500-9150 Log into myNumotion app to live chat, check your order status, or pay your invoice.