Keep and sustain our society through building and its equipment maintenance.
It’s our mission.
We bring to market innovative solutions about building maintenance.
How can we use the building and the equipment longer, safer, and more comfortably?
We work with the highest integrity, compliance culture and respect for human rights over the 50 years.
Based on these high technology and sincerity cultivated over 50years as experts,
we, Johnan Service, is challenging to find new innovation for achieving the client satisfactory.
Though our knowledge and technologies for the building and its equipment, Will protect the society.
That is our mission.
Construction record
- All
- Electrical work
- Air conditioning work
- Water supply, Drainage work
- Maintenance, and Others
-
United Nations University
Electrical work -
Tokyo Institute of Technology
Air conditioning work -
Bunkyo University Gakuen
Water supply, Drainage work
-
The University of Tokyo
Electrical work -
United Nations University
Electrical work -
Metropolitan Police Department
Electrical work
-
Tokyo Institute of Technology
Air conditioning work -
Yokohama National University
Air conditioning work -
Lumine Wing
Air conditioning work
-
Bunkyo University Gakuen
Water supply, Drainage work -
Tokyo Metropolitan Teien Art Museum
Water supply, Drainage work -
Japan Student Services Organization
Water supply, Drainage work
-
Bunkyo University Gakuen
Maintenance, and Others -
Nihon Kogakuin College
Maintenance, and Others
Main client
- All
- Project about Government
- Municipal and each Schools
-
Ministry of Finance
-
Ministry of Education, Culture, Sports, Science and Technology
-
Tokyo Institute of Technology
-
Ministry of Finance
-
Ministry of Education, Culture, Sports, Science and Technology
-
Ministry of Health, Labor and Welfare
-
The University of Tokyo
-
Tokyo Institute of Technology
-
Tokyo University of Foreign Studies
