How to cancel Constellation

To stop your power service with Constellation Energy:

  1. Call customer service on (800) 718-1509
  2. Ask to speak with a representative.
  3. Provide them with your account number and customer details.
  4. Request cancellation of your service and recurring payments.
  5. You will receive a confirmation letter or email.


To cancel over the phone, call: 1-800-718-1509
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Whether you're looking for information on how to delete your Constellation account, unsubscribe or cancel a free trial, Emma can help.

Check out the instructions above to cancel your Constellation membership. You can also browse our directory for pages on how to cancel other popular subscription services.

Emma is a money management app that connects to all your bank accounts to help you track paid subscriptions and bank fees, set budgets payday to payday and categorise your expenses to identify areas for improvement in your finances.

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