Hi Sophie, one potential suggestion for an EAP is Care First although I can't comment on the costs. Some other things you may want to do:
- a quick search for historic threads on this subject may pay dividends
- you may want to wander down to your local library and check out their copy of the Personnel Manager's Yearbook in the Reference section. This includes details of various HR services which will include suggestions for OH and EAP providers
- you may like to check the CIPD website for their supplier directory which will also include potential suppliers.

Good luck. :-)

In reply to Clare:

Hi Claire Marie,
Thank you so much for your really helpful advice. I will look into everything that you have suggested,
Many thanks.