HVAC Expertise Central Valley  is a jointly administered by Northern San Joaquin (LMCT) whose mission is to promote and support the union sheet metal, heating and air conditioning industries in Northern California.

In addition, the LMCT administers and funds a tool replacement plan, drug testing plan, facilitates special trainings and programs, and supports local High School CTE programs.

SMACNA is a non-profit trade association representing sheet metal and air conditioning contractors located in Northern California. SMACNA contractors are the most experienced, professional and knowledgeable contractors in the industry and have been setting the standard of quality for energy efficient design and sheet metal/HVAC expertise in the region for over 50 years.