Contact Us


Phone Support – 800-7CALL-UI (800-722-5584)     Hearing Impaired - Dial 7-1-1

If you need to contact us regarding an issue or concern, please refer to the chart below for a list of common interactions and support hours.

Reason for Call Keywords and Shortcuts Phone Support Hours
  • No power
  • Power out
  • Wire down
  • Line down
  • No lights
Billing and Payments
  • Pay my bill
  • Account balance
  • Locate a payment agent
  • Copy of my bill
  • Medical hardship

Self-Service 24X7


Customer Care Center
  • Move in
  • Move out
  • I’m moving
  • Water heater repair
  • Surge protection
  • I want a service cover
  • High bill
  • Payment arrangements
  • Financial hardship

Monday - Friday 7 a.m. to 7 p.m.Saturday 7 a.m. to 4 p.m.
(Eastern Standard Time)


Online Inquiry

Click here to review our FAQs or to send an e-mail inquiry to our Customer Care Center.

Mailing Address

The United Illuminating Company
P.O. Box 1564
New Haven, CT 06506-0901

Fax Numbers

Customer Care: 1-203-499-5973

Collection:         1-203-499-2411