Yasumoto Construction Co., Ltd.

Our Guiding Principle

In all our activities, spanning new construction to remodeling, renovation, heat insulation remodeling, soundproofing, etc., we apply the slogan "Let's make a smile" and strive to provide the best possible service to make customers smile, as well as create a work environment to make our staff smile.

Business content

Insulation work

Humidity control work

Soundproofing work

Company Profile

Company NameYasumoto Construction Co., Ltd.
Head office location1-1-14 Motomachi, Iwakuni, Yamaguchi Prefecture, Japan
DUNS number691152631
Capital36.5 mil Yen
Number of employees28 Employee
Annual Revenues780 mil Yen

Business Scope

Public construction work

Residential land development

Rental apartments

Detached house rentals

Custom homes construction


Residential soundproofing

SAM registered


236115 , 236116 , 236117 , 236118 , 236210 , 236220

238350 , 238390 , 238990

Management Philosophy 

Highest quality insulation for a comfortable living environment in the whole house.

Superior humidity control for comfort and prevention of mold and allergies.

Efficient soundproofing technology suited for a variety of environments, such as proximity to railways or factories.

Applying the Decos Dry method whereby cellulose fibers is injected in the walls and ceilings to improve durability.


What the company wants to tell

High airtightness and high heat insulation prevent dew condensation, contributing to long building life and energy saving

Checked by a professional architect & “R + panel” is strong against earthquakes

Create a healthy and comfortable environment by incorporating abundant natural materials

Regarding soundproofing, it is a long-established store since the start of soundproofing work for Iwakuni housing, and boasts top-class construction results among the Iwakuni housing soundproofing construction association, and is highly trusted by many local people.

There are many public works projects as well as general housing, and the annual performance at the base is quite large.


1. Create job satisfaction and economic growth
2. Create the foundation for industrial and technological innovation.
3. Contribute to eliminating inequality on the individual and national level
4. Contribute to a sustainable city development

Additionally, by using advanced technology and products we strive to minimize the environmental impact.


If you have any inquiries about our job,
please contact us at the phone number or email below.

Item marked with are required

    Personal information protection policy

    Yasumoto Construction Co., Ltd.(hereinafter referred to as "the Company") keeps personal information of customers in accordance with the Act on the Protection of Personal Information. We are deeply aware of the importance of protecting your personal information, and in order to build a relationship of trust with our customers, we will disclose our personal information protection policy here.

    Collection of personal information
    We will properly acquire personal information without any deception or other fraudulent means.
    Use of personal information

    We collect and use personal information only within the scope of the following purposes.

    • Inquiries, confirmations, and opinions gathered from our company to improve services necessary for business execution
    • Responding to various inquiries

    The collection and use of personal information by our company is due to the voluntary provision of the customer, and if the customer provides the personal information, the customer permits us to use the personal information in accordance with this policy.

    Provision of personal information to a third party
    We will not disclose or provide personal information to a third party without the prior consent of the person unless there is a legitimate reason such as when required by law.
    Outsourced supervision
    We may provide a part of personal information to an external contractor in order to carry out business such as providing products and services to customers. In that case, we will manage the outsourced business so that it handles personal information appropriately.
    Disclosure / correction of personal information, etc.
    We will promptly disclose your personal information when requested by you. In addition, if there is an error in the content of personal information and there is a request for correction / addition/deletion from the person himself/herself, we will promptly respond to these requests.
    Use of cookies

    A cookie is information that is sent and stored from a web server to the browser of a site visitor. Cookies can only be read by the web server that sent the information. We may use cookies to improve the accessibility and convenience of our website and collect information such as the browsing status of our website. This data does not identify or track individual site visitors.

    Third-party companies may acquire and use cookie information by linking with services of third-party companies or installing tags on our website. The cookie information acquired in that case is stored not on our server but on the server of the third-party company, and is managed in accordance with the personal information protection policy of each third-party company.

    Changes in personal information protection policy
    We may change this privacy policy as necessary. If there is a change, we will notify and announce it to the user by the method prescribed by our company.

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    Contact us : Yasumoto Construction Co., Ltd.
    Tel: +81-827-22-5500

    Managing director: Satoshi Yasumoto  (CEO)

    URL: https://wacom-japan.com/yasumoto  (EN)

    URL: https://www.yasumoto.co.jp/company/  (JA)

    Mail: yasumoto@wacom-japan.com