Customer Service

Fast, friendly and fair


After a sale is complete, Keystone's customer service team is available to help take care of any issues that may arise. Dedicated staff members in two of our call centers are there to help with the return process, delivery questions, and other issues you may encounter. We are committed to resolving issues in a fast, friendly and fair manner believing that it is our commitment to the customer that sets us apart from the competitors. 

 Customer Care e-Mail
 eKeystone Technical Support  Phone: 1-866-353-9786
 New Business Development  US: 1-800-432-8063,
 Canada: 1-800-257-7190  
 New Customer Information Phone: 1-800-432-8063
 Corona, CA  1-800-521-9999
 Dallas, TX  1-800-521-9999
 Exeter, PA  1-800-521-9999
 Greensboro, NC  1-800-521-9999
 Kansas City, KS  1-800-521-9999
 Mississauga, ON, Canada  1-800-257-7190
 Español  1-800-521-9910


Customer Service
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