Posted By Paul Leadbetter Rochelle Am I right to think that your cleaners are contractors? If so, they are responsible for their risk assessments and you are responsible for your own. However, if any of your respective activities could affect the employees of the other party, you should swap risk assessments so that you are each aware of the other's activities. There may be a financial reason why you would want to keep your cleaning supplies separately from their's but not necessarily a COSHH reason. You should check for any incompatibilities between the various products and keep any incompatible ones apart in case of spills or leakage. Paul

Posted By Merv Newman Rochelle, also, do an occasional inventory or the cleaner's storage. Make sure they don't sneak in anything not previously declared. We once changed contractors and I found myself with a corroded, leaking drum of something with a high content of hydrofluoric acid. Merv