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Office Services Assistant III Salaries in Windsor, ON

• What is the average Office Services Assistant III salary for Windsor, ON?
  How much does an Office Services Assistant III in Windsor, ON make? The median annual Office Services Assistant III salary in Windsor, ON is C$77,401, as of July 27, 2026, with a range usually between C$69,114-C$86,050 not including bonus and benefit information and other factors that impact base pay. However, the salary for someone with the title Office Services Assistant III may vary depending on a number of factors including industry, company size, location, years of experience and level of education. Our team of Certified Compensation Professionals has analyzed survey data collected from thousands of HR departments at companies of all sizes and industries to present this range of annual salaries for people with the job title Office Services Assistant III in Windsor, ON.

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• About this chart
  This chart describes the expected percentage of people who perform the job of Office Services Assistant III in Windsor, ON that make less than that salary. For example 50% of the people who perform the job of Office Services Assistant III in Windsor, ON are expected to make less than the median.
  Source: HR Reported data as of July 27, 2026

• Job Description for Office Services Assistant III
  Supports office administrative functions and processes with assistance, backup, and coordination duties. Assists with planning and coordinating office-wide processes such as facilities maintenance, space planning, moves, equipment installations, and other events or projects with internal and external stakeholders. Monitors inventory and places orders for office equipment, supplies, or provisions. Processes mail, invoices, employee expense reports, reimbursements, and petty cash. Tracks time reports, attendance or time cards. May act as backup for receptionist, phone coverage, or assist HR activities such as employee onboarding, interview coordination, training initiatives, and other special projects. May be responsible for performing company database or system administration tasks, including data input, reporting, user support, and upgrades. Addresses routine day-to-day problems or coordinates with stakeholders to obtain solutions. Requires a high school diploma or equivalent. Typically reports to a supervisor. Works independently within established procedures associated with the specific job function. Has gained proficiency in multiple competencies relevant to the job. Typically requires 3-5 years of related experience. View full job description

• Similar Job titles to Office Services Assistant III
  • Administrative Assistant III
  • Office Automation Analyst III
  • Office Manager
  • Office Manager, Senior
  • Office Services Assistant I
  • Office Services Assistant II
  • Office Services Assistant IV
  • Office Services Professional I

• Level of Education
  • Office Services Assistant III Salaries with No Diploma
  • Office Services Assistant III Salaries with a High School Diploma or Technical Certificate
  • Office Services Assistant III Salaries with an Associate's Degree
  • Office Services Assistant III Salaries with a Bachelor's Degree
  • Office Services Assistant III Salaries with a Master's Degree or MBA
  • Office Services Assistant III Salaries with a JD, MD, PhD or Equivalent

• Most Popular Cities for Office Services Assistant III in Canada
  • Fredericton, NB Office Services Assistant III
  • Moncton, NB Office Services Assistant III
  • Halifax, NS Office Services Assistant III
  • Oshawa, ON Office Services Assistant III
  • Ottawa, ON Office Services Assistant III
  • Charlottetown, PE Office Services Assistant III
  • Montreal, QC Office Services Assistant III
  • Quebec, QC Office Services Assistant III
  • Sherbrooke, QC Office Services Assistant III

• Most Popular Jobs Titles for Windsor, ON
  • Windsor, ON Art Director
  • Windsor, ON Technical Writer III
  • Windsor, ON Public Relations Specialist III
  • Windsor, ON Print Production Coordinator I
  • Windsor, ON Industrial Designer III
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• Categories that include Office Services Assistant III
  • Administrative, Support, and Clerical

• Office Services Assistant III Salaries by Province in Canada
  • Alberta
  • British Columbia
  • Manitoba
  • New Brunswick
  • Newfoundland and Labrador
  • Nova Scotia
  • Northwest Territories
  • Nunavut
  • Ontario
  • Prince Edward Island
  • Quebec
  • Saskatchewan
  • Yukon

• Administrative, Support, and Clerical Jobs by Salary Range
  • <$30K
  • $30K–$50K
  • $50K–$80K
  • $80K–$100K
  • >$100K