Illuminating Company Customer Service Number

Welcome to United Illuminating! UI uinet

WebWhether commercial or residential, your energy decisions affect your bottom line. Please visit our Welcome Brochure for information about your service. We are committed to …

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Payment and Billing Options UI uinet

800.722.5584

WebCall 800.722.5584 (800-7-CALL-UI) to make a payment any time using our automated phone system. Pay by Mail. Make your check payable to The United Illuminating …

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Home Illuminate California

WebPlease note, the program phone number will no longer be active after July 31, 2023. We will reach out directly if there is an opportunity to collaborate in the future. Thank you for …

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