FORTIS Skilled Trades Schools in Tennessee Programs Offered at Our Tennessee Colleges and Institutes in Skilled Trades Cookeville Fortis Institute in Cookeville Heating, Ventilation, Air Conditioning and Refrigeration Fortis Institute in Cookeville 1025 Hwy. 111Cookeville, TN 38501 Nashville Fortis Institute in Nashville HVAC Fortis Institute in Nashville 3354 Perimeter Hill Dr.Suite 105Nashville, TN 37211