Cost of anti-freeze change?

I would like to know how much a garage will charge me for changing my anti freeze in my citroen Xanitia 1.8 8v 1993. Its not a main dealer garage but a local garage. Please tell me the avarage cost for changing the anti freeze.
No point in simply changing. Need to flush the whole system including the radiator matrix first. Could be £100. But is the sort of job you could do yourself.
Answered by Honest John on

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