Business description

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Group business/Asset utilization business

Controls the group corporations as well as utilizes company-owned assets to make a contribution to the local community


There are 6 locations including TANACHO group corporations nationwide.

While establishing, maintaining, and developing the efficient management system of the group corporations region by region/function by function, TANACHO devotes itself to speedy and flexible group restructuring aligned with the recent trend of industry reorganization. In addition, we are committed to making a contribution to the local community by actively engaging in the urban development as well as effectively utilizing the company-owned assets. Some of our buildings are also used as building workshop/ exhibition center of our environmentally friendly and disaster–prevented finished products that are our main line of business.
The typical example is our registered main office located at 3-chome , Nihonbashi Muromachi, chuo-ku, Tokyo. This location is currently under redevelopment and expected to complete the construction in March 2019. We are working on a construction of state-of-the-art complex facility that is environmentally friendly, energy saving (Eco), as well as safe and secure (disaster-prevented and crime prevented).

Wholesaler specializing in the housing materials

We deal with new development as well as refurbishment/renovation of residential houses, buildings, and business units, including windows, Water works facilities, and exteriors

Windows (glass/sash)

We deal with a wide range of products from all glass manufacturers.
TANACHO can promptly provide the most suitable glass/sash according to the various requirements, such as energy saving function (thermal barrier or heat insulation), disaster prevention, soundproof, wind pressure resistance, as well as anti-crime functions.
TANACHO provides customers, including house builders and major housing companies, with great satisfaction by furnishing warehouse, cutting center, and Window assembly center at each location along with offering our Final window products in response to the customer’s needs. The site of each location is equipped with state-of-the-art facilities and our employees with sophisticated work skills. The ability to respond flexibly from branch to branch based on the knowhow developed over the years for the regional characteristics is also one of our advantages.
For sash, we deal with eco sash, such as heat insulated product. As a window expert, TANACHO offers our products to meet each customer’s needs. Constantly striving to learn about the latest product trend, we consult with our customers and address their issues as a window advisor and coordinator.

Water works facilities, interior materials, exteriors, and Solar photovoltaic generation

In addition to windows, we deal with Water works facilities, including kitchen unit, bath equipment, and sink, as well as interior materials including wall materials and doors, exteriors including gate and balcony, and other housing related products, such as gardening tools and solar energy generation.
We provide energy saving, safe and secure, and comfortable products with our sophisticated line of products and solid work technique in response to all needs of our customers all needs related to the housing space. We offer comprehensive advice and service for the windows, Water works facilities, and doors and wall materials from design, functionality, and financial point of view, and our services have been highly evaluated by many of our clients.


Energy saving : Highly insulated bathtub, water efficiency toilet, high efficiency water heater, solar energy generation system, as well as upgrading exterior walls, roofs, ceilings, and floor heat insulation
Security and safety : Door lock, kitchen gas leak sensor, etc.
Comfortable : Providing open and relaxing living space by using clean and functional materials for the walls, floors, and plumbing and other water section

Resin products

In case a customer desires not to use glass or glass cannot be used for opening sections, TANACHO can offer the most suitable solution with resin products using acrylic resin, chloroethylene, and polycarbonate as raw materials, which are safe, light weight and highly transparent just as glass.The resin products are widely used in many areas including buildings, residential houses, and even high-tech area such as semiconductor.
TANACHO has extensive experience and knowhow for dealing with resin products that have been accumulated in many years of business operation in this particular field as well.

Glass/sash glazing specialist

Comprehensive producing business for building/residential opening sections


We will respond to the professional work of the opening of any building, dwelling from skyscraper apartment, until the individual housing facility.

Not only installing window glass/sash (for new constructions and refurbishment), TANACHO also installs their equipment facilities. TANACHO is a long-established business when it comes to glass work since right after the World War II when our first full-scale building construction started. Our participations in the construction of Kasumigaseki Building, the Japan’s first skyscraper and Ark Hills, the Japan’s first intelligent building, were some of the highlights in the history of our company.
Roppongi Hills (Minato-ku, Tokyo), Mode Gakuen (Shinjuku-ku, Tokyo), CORED Nihonbashi, CORED Muromachi, Nihonbashi Mitsui Tower (Chuo-ku, Tokyo), JR Hakata Station (Fukuoka-shi), Kyushu National Museum (Fukuoka-shi), and cruise ship “Diamond Princess” (Nagasaki-shi) are among the works that TANACHO has produced in the past mainly in the Kanto and the Kyushu areas.

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