Water When You Move in Yamaguchi: Start and Stop Deadlines and Phone Numbers in 5 Cities

When you move in Yamaguchi Prefecture, you ask the water office of each city to stop water at your old address and start it at your new one, by phone or online. The deadline is 1 week before in Yamaguchi City, 3 to 4 days before in Shimonoseki and 3 business days before in Iwakuni; Ube and Shunan give no number of days, and Ube asks you to contact it as early as possible.

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Water start and stop in 5 Yamaguchi cities: phone numbers and deadlines compared

The longest deadline in days is Yamaguchi City’s 1 week; Iwakuni counts 3 business days, which reach further back over long holidays. All five also take requests online; on Japanese forms, 使用開始 means start and 使用中止 means stop.

City	Apply by	Phone
Shimonoseki	3 to 4 days before	083-231-3117
Yamaguchi City	1 week before	083-933-6664 (north)
Ube	“As early as possible”	0836-21-2304
Shunan	No number of days given	0834-22-8617
Iwakuni	3 business days before	0827-22-1195

If you do not send a stop notice, the basic charge and other fees can still apply even when you use no water (Yamaguchi City Waterworks: start and stop, Ube Waterworks Bureau: start and stop, Iwakuni City Waterworks: start and stop).

Applying for water in Yamaguchi: what differs by city

In Yamaguchi Prefecture each city runs its own water office, so the office name and phone number differ even for the same procedure. Look up the office of the city you are moving to first.

• Shimonoseki moved its online application from the Yamaguchi e-application service to the request page of the Shimo-sui app in January 2026.
• Yamaguchi City has separate phone desks for the north and the south (Ogori) areas, and the small water supply in the Ato area has its own desk.
• Of the five cities, Yamaguchi City (outside Ato) is the one that says you can carry your bank direct debit over to your new address for a move inside the city.
• Iwakuni does field work only during weekday business hours; if you ask for a weekend or holiday, it is done on the nearest business day.

Shimonoseki: Customer Service Division of the Water and Sewerage Bureau, or the Shimo-sui app

In Shimonoseki, apply 3 to 4 days before your move by calling the Customer Service Division (お客さまサービス課, 083-231-3117) or on the online request page. The online request moved to the Shimo-sui app in January 2026.

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Moving in, give your name, address, move-in date and phone number, and your previous address if you move within the city. You need to contact them even if the new home already has running water. Moving out, give your customer number (お客さま番号, on the water-use notice or receipts) and your new address and phone number.

Charges up to the move-out date are paid with a payment slip mailed to the address you give. If you pay by direct debit, you can use “direct debit settlement” (口座振替精算), but settling does not stop the water. You can pay by direct debit, payment slip (convenience stores, banks or the counter), smartphone payment apps, or the electronic slip in the Shimo-sui app.

Office	Customer Service Division, Shimonoseki City Water and Sewerage Bureau
Phone	083-231-3117
Apply by	3 to 4 days before
Online	Request page in the Shimo-sui app
Official pages	water at move-in and move-out; ways to pay; applications

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Yamaguchi City: 1 week before, and direct debit carries over for a move within the city

In Yamaguchi City, notify the start or stop date at least 1 week before, by phone or online. The phone desk depends on your area.

The north area (Otono, Shiraishi, Yuda, Niho, Kosaba, Ouchi, Miyano, Hirakawa, Yoshiki and Otoshi) uses the Water and Sewerage Charge Center (上下水道料金センター, 083-933-6664). The south area (Ogori, Aio, Ajisu, Sue, Zenjiji, Nadajima, Kagawa, Sayama and others) uses the Ogori Branch Office (小郡出張所, 083-973-6332).

The online form can be sent 24 hours a day, but it is handled during business hours, so a request on a holiday is handled on the next business day. If you are in a hurry, call 083-933-6664. The evening and holiday counter on the 1st floor of the Waterworks Bureau (083-933-6664) takes requests on weekdays from 17:15 to 20:00 and from 8:30 to 20:00 on Saturdays, Sundays and holidays.

You generally do not need to be there on the start date, but the water cannot be turned on if a tap in the home is open, so check the taps first.

If you pay by direct debit inside Yamaguchi City (outside Ato), you can keep the same account after the move: give the service address or user number (使用者番号) of your old home when you apply to start. Until the debit starts, you pay by payment notice. The Ato area has its own procedure for the Ato small water supply.

North area	Water and Sewerage Charge Center, 083-933-6664
South area	Ogori Branch Office, 083-973-6332
Evenings, holidays	Waterworks Bureau 1F counter: weekdays 17:15 to 20:00; Sat, Sun and holidays 8:30 to 20:00
Apply by	1 week before
Official pages	start and stop; FAQ; Ato area

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Ube: the Counter Unit of the Business Section, or the Ube e-application service

In Ube, contact the Counter Unit of the Business Section (営業課窓口係, 0836-21-2304) early for a start, a stop or a change of name. Besides the phone, you can apply from a computer or smartphone through the Ube e-application service (うべ電子申請サービス).

By phone, they ask for your address, name, phone number, start date and payment method. Giving the water service number (水栓番号, printed on your meter-reading slip) speeds things up. Meters are installed and water turned on in the order requests arrive. No number of days is given, so contact them as soon as your moving date is set.

There are two ways to pay, account debit (口座制) and payment slip (納付制); credit cards are not accepted. For account debit, take your bankbook, registered seal and the water-use notice (or a receipt) to a handling bank or the Waterworks Bureau counter. The debit date is the 17th of the month after the meter reading. Payment slips can be paid at the Bureau, banks, convenience stores or with a smartphone app.

Office	Counter Unit, Business Section, Ube Waterworks Bureau
Phone	0836-21-2304
Hours	Weekdays 8:30 to 17:15 (closed weekends, holidays and the New Year break)
Online	Ube e-application service: start (水道使用開始申請) and stop (水道使用中止申請) links on the start and stop page
Official pages	start and stop; hours and location

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Shunan: the Charge Center of the Water and Sewerage Bureau, online or by phone

In Shunan, notify both starts and stops to the Charge Center of the Water and Sewerage Bureau (上下水道局料金センター, 0834-22-8617), by phone or online. No number of days is given, so contact them early once your moving date is set.

Online, go from the city page to the water start form or the water stop form. A paper form may be needed in some cases.

You generally do not need to be there on the start date, but you may be asked to. For a move within the city, send a stop notice for the old home and a start notice for the new one separately, and write your new address on the stop notice. Without the notices, you may be charged water and sewerage fees even when you do not use water.

For the final bill, those who pay by slip get the slip at their new address, and those on direct debit have it taken from the account. Tell the center if you want to settle by slip instead.

Office	Charge Center, Shunan City Water and Sewerage Bureau
Phone	0834-22-8617
Hours	8:30 to 17:15 (closed weekends, holidays and the New Year break)
Online	start form; stop form
Official pages	start and stop notices; about the Charge Center

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Iwakuni: the Customer Service Center, by phone or online at least 3 business days before

In Iwakuni, contact the Water Bureau’s Customer Service Center (料金お客さまセンター, 0827-22-1195) at least 3 business days before a start or a stop. Online, you can apply to turn water on or off, and if you also use the sewer, the same request covers it.

To start, give the address, your name and phone number, the start date and where to send the bill. You generally do not need to be there, but close all taps before the water is turned on. The bureau says it is not responsible for water damage from taps left open.

Direct debit is recommended for payment. Water bills can also be paid with the payment notice at banks, convenience stores or the Water Bureau counter.

Office	Customer Service Center, Iwakuni City Water Bureau
Phone	0827-22-1195
Hours	Weekdays 8:30 to 17:15; field work on weekdays only
Apply by	3 business days before
Online	Start and stop forms on the start and stop page
Official pages	start and stop; water charges

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Water when you move in Yamaguchi: the order of steps

1. Once your moving date is set, check the city of your old address and of your new address.
2. Apply to stop water at the old address by the deadline above (early for Ube and Shunan, which give no number of days). Your customer number is on the meter-reading slip or a receipt.
3. Apply to start water at the new address.
4. Decide whether to keep your direct debit. For a move inside Yamaguchi City (outside Ato), you can keep the same account.
5. On moving day, close the taps before you start using water.

City hall steps such as the move-in notice are in Moving to Yamaguchi with Children: First 14 Days in 5 Cities.

Sources (checked October 22, 2026)

5 pages we checkedShow

• Shimonoseki City: water at move-in and move-out, ways to pay, Water and Sewerage Bureau applications, Shimo-sui app
• Yamaguchi City Waterworks: start and stop, FAQ, Ato small water supply
• Ube Waterworks Bureau: start and stop, hours and location
• Shunan City: start and stop notices, about the Charge Center
• Iwakuni City Waterworks: start and stop, water charges