Great Oaks Institute of Technology's hvac department and RETS Tech Center's hvacr department have received national accreditation through the Partnership for Heating, Ventilation, Air-Conditioning and Refrigeration Accreditation (PAHRA) program.

Accreditation certifies the hvacr programs at these colleges have exceeded industry standards in its instruction, curriculum, student, faculty and facility standards set forth by industry in areas of residential ac and heating, light commercial ac and heating, and commercial refrigeration.