The average maintenance salary at Wylie Isd was $34,602 , which is 5 percent lower than the average salary for this job in Texas, and 25 percent lower than the national average for this job . Maintenance salaries at Wylie Isd typically range from $23,818 to $36,865 (25th to 75th percentile). The highest reported maintenance salary was $126,380. There are 74 employees at Wylie Isd with the job title maintenance.