Damage to your stuff is annoying. It is even more annoying if this damage is not reimbursed when you had expected it to be. Most cleaners are not entrepreneurs and are not liable for any accidental damage they make while working. A number of all-risk insurance policies cover this damage. It is important to be clear about this beforehand and to close another policy if necessary.
You can't make an omelette without breaking eggs is a nice saying but damage is always annoying. Your third party insurance will not compensate this damage. If you are an entrepreneur and have a liability insurance you can report the damage to your insurance company. If you are a private individual any accidental damage is for the risk of the client. Ask your client beforehand if they have a good insurance policy. And if there is damage? Always tell that to the client because honestly is the best policy.