For inquiries regarding water supply, 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.
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Beware of suspicious visits, telephone calls, and e-mails that pretend to be Water Works Bureau officials.
Last Updated November 7, 2024
Beware of suspicious visits, telephone calls, and e-mails that pretend to be Water Works Bureau officials.
- In the whole city of Yokohama, suspicious individual and suspicious phone calls were sent to Water Works Bureau officials, including Water Works Bureau officials and contractors, saying they received instructions and requests from Water Works Bureau. In addition, we have received information that suspicious emails have been sent.
- Water Works Bureau doesn't do the following: Please be careful.
- Surveys and water quality inspections of pipes that are not requested.
- Repair and investigation of water pipes in the house and charge for work.
- Door-to-door sales, rental and mediation of water purifiers
- Notification of unpaid water charges and water outages by e-mail
- If there is a visit related to water supply, be sure to ask for your ID and confirm it.
If you have any doubts, please contact the Water Works Bureau Customer Service Center without entering the house or immediately contracting or paying money. If you receive a suspicious email, delete it without opening it.
- Water Works Bureau Customer Service Center
Telephone: 045-847-6262 - Fax: 045-848-4281
※Please be careful not to make a mistake.
Example 1 “Leakage Survey” and “Piping Survey”
"I was asked by Water Works Bureau to investigate the leak of an old water pipe."
- Water Works Bureau does not conduct surveys on pipes that are not requested by customers.
- (Excluding underground water leakage surveys by the Water Distribution Division Leakage Administration Section and cases where it was announced in advance.)
Case 2 “Water Quality Inspection”
There was a phone call saying Water Works Bureau and a contractor saying, "Please prepare a glass of water and conduct a water quality test." He put a machine in the water of the cup and said, "There is rust and the water quality is not good." He was advised to clean the water pipe in the house and was offered an estimate of the cost.
"Water Works Bureau. I came to the water quality inspection. I put the faucet water in a cup and put the medicine there, and turned pink (* 1). . "This water is not good, so it is better to attach a water purifier." He was offered to purchase or lease a water purifier, and was presented with the amount.
- Water Works Bureau does not conduct water quality tests without customer requests. (Except when notified in advance.)
- In addition, we do not sell, rent, or mediate water purifiers or water servers.
- (* 1) Tap water turned pink due to the reaction of chlorine for disinfection and chemicals. It's not an abnormality in water quality.
- If you have any problems with contracts for products or services, please contact us.
Yokohama City Consumer Life Center - Telephone: 045-845-6666
- Fax: 045-845-7720
Case 3 “Collection”
"Water Works Bureau. This month, we will collect water charges in cash. "I visited and collected money.
- In principle, Water Works Bureau does not collect on-site fees.
- When visiting for collection of unpaid fees, we will notify you in advance in writing (notice of water supply suspension, etc.).
Case 4 “Email”
"We will stop water supply because water charges have not been paid." And an email saying "I will do a large-scale water outage."
- Water Works Bureau does not send e-mails to "claim unpaid water charges" or "notice of water outages."
- If you receive a suspicious email, please delete it without opening it.
If you accidentally access the link in the e-mail, do not enter personal information or credit card information. - In addition, we have received consultations that you have accessed the link described in the suspicious email. If you accidentally enter personal information or credit card information at the link, please consult the credit card company and police immediately.
Example 5 “inspection / inspection” and “washing” of sewerage
"I was asked by Water Works Bureau to check the sewage trout."
- Water Works Bureau does not visit sewerage or drainage facilities.
- For sewer construction that Yokohama-shi performs, we show identification card when the staff of city and trust company asks inspection and investigation in residential land.
If you feel suspicious, please contact Public Works Office in each ward.
Please be aware of the Commercial Code of Inspection of Sewage and Drainage Equipment
Visiting staff and business operators
- The Water Works Bureau employee carries an employee ID card. When contractors and contractors visit water meter readings, meter replacements, etc., they carry consignment certificates and identification cards issued by Water Works Bureau.
- If there is a visit related to water supply, be sure to ask for your ID and confirm it.
Water meter reader and charger
- If you have any doubts or think something is wrong, please contact the Water Works Bureau Customer Service Center.
Inquiries to this page
Water Works Bureau Water Supply Service Department Service Promotion Section
Telephone: 045-671-3073
Telephone: 045-671-3073
Fax: 045-212-1168
Email address: su-sabisu@city.yokohama.lg.jp
Page ID: 151-211-525
