Self employed handy man works one day a week, lots of experience job involves maintenance throughout the site including ladder use, equipment use etc (not all his own - some belonging to the site). I have discussed his tasks and between us putting together risk assessments /safe systems along with checklists as required for both his maintenance checks and ladder, equipment etc would you agree this is correct given he is self employed and not an employee as such? your input appreciated.

I'm with Kate - you have done the right thing so far. Remember that there is ample case law - both criminal and civil - that means in some circumstances you could be regarded as his employer.
You supply some tools/equipment and presuambly "direct" his work. He is a "small man" and you are a larger firm - and have someone - you I guess - that knows more about H&S. There is, in my opinion, clear evidence that would support the argumeent that you should go a long to manage the risks he will be facing.

Phil