The salary trajectory of a Customer Service Advisor ranges between locations and employers. The salary starts at £0 per year (estimate) and goes up to £0 per year (estimate) for the highest level of seniority.
The estimated average salary for a Customer Service Advisor at FirstGroup is £57,581 per year or £28 per hour, but some professionals have reported earning up to roughly £97,270 per year (90th percentile). The typical pay range is between £43,953 (25th percentile) and £76,140 (75th percentile) annually. This is based on 16 salaries submitted by FirstGroup Customer Service Advisor professionals on Glassdoor, as of Jul 2026.