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If you are a current customer, please provide your Contract Number or Parent Company information.

Office Hours:
Monday - Friday: 8:00 AM - 5:00 PM Eastern Time (UTC -5:00)

Emergency assistance is available after-hours.

Phone:
(800) 860-9755
(419) 522-3428

Fax:
(419) 522-3568

E-Mail:
National Account Support: nas@dteinc.com
Local / Ohio Account Support: las@dteinc.com
Sales Support: sales@dteinc.com
Website Support: support@dteinc.com

Office Address:
DTE, Inc.
110 Baird Parkway
Mansfield, OH 44903