The property manager is not sure what to do about the cupboard door hinge which has broken. The tenant has contacted the property manager and said they would like the door repaired.

Who could the property manager contact for advice?

Which tradesperson might be able to complete this repair? 

Does the tenant need to pay for the repair themselves? The tenant decides to pay for the repair of the blocked toilet themselves.What are the responsibilities of the tenant and landlord after the tenant has paid for the repair?