Hi
What they are asking for is perfectly normal.
Some of them are a legal requirement which, as a cleaning company, you should have in place anyway.
Others are not a legal requirement but are usually asked for.
Company/Public Liability Insurance
Risk Assessments *
Working Practices *
Health and Safety Policy
Method Statements *
Lone Working Policy *
C.O.S.H.H *
Electrical Test Certificates *
Training Certificates *
Accident Reporting Procedures*
You will probably find most of the risk assessments on my website (Health and Safety section).
COSHH sheets you will get from your materials supplier.
Working practices is self explanatory.
Electrical Test Cert. otherwise known as PAT testing should already be in place.
Accident reporting procedures - ask them if you can fit in with their procedures and report in their accident book etc.
Lone working - if there are lone workers, what arrangements have been made to ensure their safety etc.
If you need any more help, please ask.