The average hvac salary at Mesquite Isd was $50,247 , which is 10 percent lower than the average salary for this job in Texas, and 10 percent lower than the national average for this job . Hvac salaries at Mesquite Isd typically range from $40,459 to $57,724 (25th to 75th percentile). The highest reported hvac salary was $75,627. There are 16 employees at Mesquite Isd with the job title hvac.