Inquiry by e-mail about water supply

For inquiries by e-mail, it may take some time to respond.
(Saturdays, Sundays, holidays, and New Year's holidays will be handled after the next business day.)

Please also refer to "Frequently Asked Questions Q & A".
※The number of inquiries regarding direct debit and credit card payments is increasing.
Click here for frequently asked questions about fund transfer and credit card payment.

In addition, we do not accept requests related to contracts and procedures by e-mail because it is difficult to confirm whether you are the contractor.
Please contact the Water Works Bureau Customer Service Center.
Water Works Bureau Customer Service Center
Telephone: 045-847-6262 Fax: 045-848-4281
※Please be careful not to make a mistake.

For inquiries regarding the following content, we will not be able to respond or request by e-mail.
Please contact the Water Works Bureau Customer Service Center.

Water Works Bureau Customer Service Center
Telephone: 045-847-6262 Fax: 045-848-4281
※Please be careful not to make a mistake.

About opinion, request about water supply business, please use "suggestion from citizen".

For inquiries by e-mail, please specify the following and send it.
We may not be able to respond to anonymous questions.

• Name (required)
• Address (required)
• Contact information (required)
• Customer number (9-digit number indicated in the meter reading notice, etc.) Example: 12-34-56789)
• Contents of inquiry (required)

The personal information you receive will be properly managed and will only be used to respond to inquiries.
Sending an inquiry email