List of water leak repair companies downstream of the meter

The water supply equipment is a private property, and the contract for water supply work (leakage investigation, water leak repair, etc.) is contracted between the owner or user and the designated water supply equipment construction company (hereinafter referred to as "construction company"). Is what you have. Water Works Bureau cannot intervene in the contract.

When requesting a construction company to repair water leakage, please note the following.

[Before contacting the construction company]
As you can stop the water with the water stopcock of the water meter, even if the water is erupting, stop the water without panic and check the following items and contact the construction company.
If you do not know the location of the meter or how to operate the stopcock, please contact Water Works Bureau Customer Service Center (045-847-6262).

[Request for repair to construction companies]

1. Please explain the contents of the desired construction and the local situation to the waterworks shop enough.
2. Please receive sufficient explanation in advance about the details of the construction, the required time, the estimated amount, etc.
3. If possible, get quotes from multiple people and consider the contents. Please check in advance as estimates may be charged.
4. If you do not actually repair it only with an estimate, or you may be charged just by checking the site, so please check with the waterworks you request in advance.
5. If you are not satisfied with the billing amount, ask for a breakdown of the billing amount and confirm any questions.
6. If you have any questions during construction, please check with the construction company on the spot.
7. If you make an emergency request on a holiday or nighttime, the fee may be higher than usual, so please check in advance.
8. If the water pipe is leaking due to aging, please note that after some repairs, there may be water leakage in other aging places.
9. After the repair work is completed, please submit the “Application for Certification of Water Consumption Due to Water Leakage” to Water Works Bureau. For more information, please click here.

The designated system for designated water supply equipment construction companies was established by the revision of the Water Supply Law in 1996, and based on the application of those who conduct water supply equipment construction business under uniform requirements nationwide, the water supply company (Water Works Bureau) Is a person who has been designated as a construction company.
Designated water supply equipment construction companies are designated for each water supply company (Water Works Bureau), but the designated standards are not stipulated by the water supply company (Water Works Bureau), but are designated by the Water Supply Law as a uniform requirement nationwide. Standards are set. The designated criteria are "location of persons who will be appointed as chief engineer for water supply equipment construction at each business site", "holding of machinery and equipment specified in the Water Supply Law Enforcement Regulations (machine and equipment for cutting pipes and pipes for processing machinery and equipment for processing. Mechanical equipment for joining, water pressure test pump) ", "Be a person who does not meet certain disqualification requirements".
When a person who has applied for designation conforms to the designated standards stipulated in the Water Supply Law, the water supply company (Water Works Bureau) must designate it.
When we perform water supply construction (except minor change) such as new construction, remodeling, removal of water supply equipment in Yokohama-shi, based on rule of "water supply law", "Yokohama-shi water supply regulations", Yokohama-shi designation water supply equipment construction company Application and construction by is necessary.
※Minor changes do not involve plumbing work, and refer to the replacement and repair of single faucets and the replacement of parts of water supply equipment installed at the end of water supply equipment such as tops and packings.

• "List of water leak repair companies downstream of meter" (hereinafter referred to as "this list") displays construction companies that had applied for this list in Yokohama-shi designation water supply equipment construction companies.
• It is updated on the first business day of the following month with the closing of the 15th of each month (or the next business day if it is a holiday).
• City of Yokohama, Water Works Bureau shall not be liable for any direct or indirect loss or damage arising from the use of this list.
• Please note that changes in the registration items listed may not be updated.

List of water leak repair companies downstream of the meter

PDF in Yokohama city (PDF: 600KB) / Excel (Excel: 153KB)
Yokohama out-of-city PDF (PDF: 294KB) / Excel (Excel: 92KB)

As of October 15, 2024
・The location of the construction company is divided into Yokohama city and outside Yokohama city.