Originally established in 2003 in the HVAC consulting office in Surabaya, Thanks to the abundance of grace from GOD, our Company can grow rapidly. we are able to expand the contract of design and built installation & servicing of HVAC Contractor in 2005 in several Hotel, Office and Telecommunication factories. To support better operations, we built Head Office and Workshop on Jl.lingkar timur 8 Sidoarjo, Surabaya, East Java. In early 2012, we officially became PT.IMMANUEL Solusi Sejahtera, an HVAC specialist contractor and started in MEP field.