Water When You Move in Tokyo (2026): Apply 3–4 Days Ahead by App or Phone; Musashino, Akishima and Hamura Differ

When you move in Tokyo, apply to stop water at the old home and start it at the new one 3 to 4 days before the move, with the Tokyo Waterworks app or by phone to the Customer Center (0570-091-100). The phone line is closed on Sundays and public holidays, but the app takes applications on Sundays. Water is available from the start date you gave. In English, use the Bureau’s English web form, which takes start only, stop only, or both at once.

Moving within the 23 wards and the 26 Tama cities and towns: one application to the Customer Center stops the old address and starts the new one, and direct debit or credit card payment can carry over.
Musashino, Akishima, Hamura, Hinohara Village and the islands are outside the Bureau’s area. Deadlines differ by city: contact Akishima 2 to 3 days ahead, and Hamura at least 3 business days before you stop.
By FAX, both stop and start must be sent at least 3 days ahead (not counting Sundays and holidays).

Tokyo Waterworks: apply 3–4 days ahead by app, phone or FAX

Apply to start and stop water 3 to 4 days before the move, with the Tokyo Waterworks app or by calling the Customer Center. If you do not send a stop notice, the basic charge keeps applying even when no one uses water. Start and stop procedures (Tokyo Waterworks) (Japanese)

Tokyo Metropolitan Bureau of Waterworks official YouTube channel: stopping your current water service and starting a new one

Method	When	Notes
App or web	App: any time	Register, then apply; payment setup in the same app
Phone	8:30–20:00, closed Sundays and holidays	Have your customer number ready
FAX	At least 3 days ahead (not Sundays or holidays)	Use the latest form on the Bureau’s page

In the Tokyo Waterworks app (Japanese) you can start and stop service, change the mailing address for bills, apply for direct debit or ongoing credit card payment, and choose the debit date. On a computer or browser, a dedicated page works without downloading anything.

The app has an English mode, and the Bureau has an English web form, but both handle only starting or stopping a water contract; other app functions are not available in English. The English web form does not take new construction or a change of contract name. App English mode (Tokyo Waterworks) · Online application (English)

On the English web form you can apply to start only, stop only, or stop and start together for a move within the Bureau’s area; apply once for each contract. You do not need a customer number to start service, but you need one to stop it; it is on your bill or notice. The Bureau’s English page does not say whether Customer Center staff speak English on the phone. For questions about the app (not water contracts), the Bureau takes email at suitekikun@waterworks.metro.tokyo.jp, and a reply can take up to two weeks.

The Customer Center’s navigation dial is 0570-091-100. If it does not connect, for example from an IP phone, call 03-5326-1101 (23 wards) or 042-548-5110 (Tama). Lines are open 8:30 to 20:00 except Sundays and holidays; the Bureau says calls connect more easily from 10:00 to 20:00 and less easily from 8:30 to 10:00. FAX numbers are 03-5790-0572 (23 wards) and 042-548-5115 (Tama). Customer Center (Tokyo Waterworks) (Japanese)

Moving within Tokyo: one application, and your bank or card carries over

For a move within the 23 wards and the 26 Tama cities and towns, one application to the Customer Center stops the old address and starts the new one. Water is available from the start date you gave, and you can use it at the old home until the stop date. FAQ on starting and stopping (Tokyo Waterworks) (Japanese)

Direct debit (口座振替) or credit card payment from your old home can continue for a move within the wards and the 26 Tama cities and towns. Give your old customer number when you apply to start. A credit card carries over only if the contract holder’s name is the same at both homes, and you must also apply to stop at the old address. Everyone else applies again.

No water, a name change, and ways to pay

If no water comes out at the new home, check that your application went through; if it did, open the stop valve in front of the water meter fully counterclockwise. If you cannot open it, or if you have not applied yet, contact the Customer Center. FAQ on starting and stopping (Tokyo Waterworks) (Japanese)

Whether you can correct or cancel an application made in the app is described differently on two Bureau pages: the app operation FAQ (Japanese) says once, and the FAQ on starting water in the app (Japanese) says not in the app. Ask the Customer Center (0570-091-100, 8:30–20:00 except Sundays and holidays) before you rely on either.

To change the contract name, use a name change (使用者名義変更) if the new person takes over the account balance; otherwise stop service, settle the bill, and apply to start again. Online name changes are only for the current or new contract holder and are processed from the next business day (not weekends or holidays). Direct debit and credit card payment are cancelled and you switch to paper bills, sent to the water supply address. Name change (Tokyo Waterworks) (Japanese)

There are four ways to pay: direct debit, credit card, the Tokyo Waterworks app, and a paper bill. Ways to pay (Tokyo Waterworks) (Japanese) In the app (Japanese mode only; the English mode handles only starting and stopping) you can pay with PayPay, au PAY, FamiPay, d払い (d barai) or 楽天ペイ (Rakuten Pay). Paying in the app (Tokyo Waterworks) (Japanese)

Outside the Bureau’s area: Musashino, Akishima and Hamura

In Musashino, Akishima and Hamura, contact the city’s own water office, not the Tokyo Waterworks Bureau. If you move between the Bureau’s area and one of these cities, direct debit or card payment does not carry over and you apply again. Hinohara Village and the islands are also outside the Bureau’s area. You can find offices with the Bureau’s office search, which has an English option (machine translation). The three city pages are in Japanese and do not describe English support for the water procedure.

City	Hours	Contact by
Musashino	Weekdays 8:30–17:15 (automated voice after hours)	3–4 days before; stop 2 business days before
Akishima	Weekdays 8:30–17:15	2–3 days before
Hamura	Weekdays 8:30–17:00	3 business days before stopping

Musashino City

The Water Customer Center takes start and stop requests by phone, the city’s inquiry form, or the online moving service Hikkoshi Renraku-cho; its automated phone system also takes them after hours. Contact it 3 to 4 days before you move; a stop must be sent at least 2 days before your last water day (not counting Saturdays, Sundays and holidays). For a move inside the city, say you want to keep your bank account or credit card. If there is a gap between the stop and start dates, a new application may be needed (the length depends on the bank or card company). Moving into or out of the city, apply again. Starting and stopping water when you move (Musashino City) (Japanese)

Phone	0422-52-0733
FAX	0422-53-6044
Hours	Weekdays 8:30–17:15
Deadline	3–4 days before the move

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Akishima City

The Water Department Business Division (水道部業務課) takes requests by phone. Contact it at least 2 to 3 days before you start water; for a stop, it accepts requests from one month ahead, and at the latest 2 to 3 days before. You can also mail the Water Use Notification (水道使用届書) left at the new home in the free envelope addressed to the division, or apply through TEPCO’s Hikkoshi Renraku-cho. For a stop, you need your new address. Water start and stop (Akishima City) (Japanese)

Phone	042-543-6111
Hours	Weekdays 8:30–17:15
Deadline	2–3 days before

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Hamura City

The Water and Sewerage Business Division counter (上下水道業務課) takes calls on weekdays. Contact it at least 3 business days before you stop. Hikkoshi Renraku-cho and the city’s LoGo form “Hamura City Water Use Notice” (羽村市水道使用届) take applications 24 hours a day. To change a direct debit account you need a request form, which the city mails if you give your address and name. Starting, stopping and changing water service (Hamura City) (Japanese)