Central Maine Power Payment, Login, Customer Service

Updated March 25, 2020 – Below you will find the key information you need as a Central Maine Power (CMP) customer to access your account online, make payments, and reach customer service for further assistance.

Online Account Access

Customer Service – Help & Pay By Phone

  • The Central Maine Power customer service phone number for payments is 800-750-4000.

Payment Address

Central Maine Power Company
PO Box 847810
Boston, MA 02284-7810

In Person Payments

  • You can also pay your CMP bill at many local Walmart stores and other authorized payment agencies. Go here for a list.