Unfortunately you donít need a license to work on heating and air conditioning systems in the state of Illinois. Anyone can can call themselves a HVAC
N.A.T.E. (North American Technician Excellence) is the only testing and certification program that can give you the peace of mind to know
that a company or specific technician is knowledgeable enough to be working on or installing your system. Only 60% of the technicians that take the N.A.T.E. test pass it. Because
the test is based on applied knowledge and experience only gained by working in the field as a certified HVAC technician.
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