Make sure you have evidence of some description, to what you have advised. 

Don't bother - a waiver is meaningless.

Again H&S duties are on the company - not you.

I think it's a difficult situation especially if you are working freelance as you don't know what contacts that they have. Say you report them, even if you don't give your name they will know who it was, they contact other companies and let them know and your work begins to dry up.

I would send the e-mails as already suggested, what would you do if you were employed bythe company full time and they were not complying?

It's a difficult one as it's moral V's Financial and you have a moral and financial duty to yourself and family.

Evidence of advice, walk away - best option.  If they don't take on board the advice, then there is nothing you can do, other than advise of the moral, legal and socio-economic duites they have to employees, clients and the public.

On the other hand, you could always contact their insurance company - am sure as a hoist company, if they are non-compliant to Loler, they would be particularly interested!!!

Sorry I'm a little late to this topic.

What has to be remembered and hasn't been mentioned above, is the IOSH Code of Conduct: 4.6 Inform any person overruling or neglecting their professional advice of the potential adverse consequences and keep a written record of the date, time and nature of this action.

However, in expansion of that statement, the guidance states:

In a situation where you have a genuine concern that death or serious injury might result, then the right thing to do is contact an enforcement agency such as the Health and Safety Executive (HSE). You are expected to “do the right thing” regardless of the possible cost to you. So if you think lives are at risk, there is a Moral and Professional case that you should report.

In the last 5 years, I have twice reported non-clients to their local Fire Service after I have raised concerns with the relevant Responsible Person and been rebuffed. The first was a Methodist Church which saw no problems expecting people, including elderly congregation members and Sunday School Children, to evacuate from upstairs via a Victorian Sash window and a vertical hooped ladder (amongst other concerns).

More recently, I reported a major High St Supermarket whose head office H&S Dept saw no problems with a Fire Exit in a store which has several issues - their reasoning being 'it has always been like that'.

In both cases the FRS supported my concerns and gave strong advice to the organisations. The Church were told they must have somebody on Fire Watch whenever the upstairs was in use, pending a suitable Fire Risk Assessment and completion of it's recommendations.They were lucky not to have an Enforcement Notice. I had been at the Church premises to conduct some training for a client who had use of some rooms there. After this incident, the client never used me for any other training.

Was there a connection? Who knows, but I'm glad I made the call, because if there had been a fire at that church premises and people had died, I didn't want to the be the person who had looked the other way.