From mechanical engineering and design service for domestic and international clients to geothermal heat pump system construction for U.S. military clients, our company people are dedicated to turning foresights, experiences and information into value added service system, which would help solve some of the clients' devastating problems in Korea.

Major activity fields are HVAC and plumbing engineering and design, tunnel ventilation and fire protection facility engineering and design, plumbing and HVAC contracting,
  
TAB commissioning, ESCO energy saving business service, facility and equipment operation and
maintenance, siphon roof rainwater drainage system engineering and design, and individual
temperature control VAV diffuser system engineering and design.

Our company people are all English literate. Our company management is fluent English speakers.
International inquiries are welcome. Please have time and find out what YOUONE can do for you
throughout our company web pages.