My DH signed gaurantor for a (now ex!!!) friend. He fully understood that he was liable for rent arrears.
Now 'friend' has left the property with arrears of around £1000.
Friend says he repeatedly asked landlord to do repairs on property which were not done hence he left.
Agency are asking DH for the £1000 although he is currently discussing whether this should be paid given the lack of repairs done. Agent also says property was left in a state so will need cleaning which will need to be paid for though no figure given yet.
Now if ultimately the rent/cleaning costs have to be paid then although we would be unhappy we accept this is a consequence of being a gaurantor and will pay.
However, something else has come up which is really worrying me 
Agent is saying the tenant removed a boiler and gas meter from the property and hence police have been informed and are looking into it.
Now, I understand that the cost of replacing said items if they've been removed would be DHs responsibility.
However, surely he can't be held responsible for the act of removing them? He didn't live there and only visited once. My thinking is the act of removal would be blamed on the tenant?
Can anyone advise? I'm so worried and upset. We are honest, law abiding people and knew nothing of the boiler/meter until the agent mentioned it.
DH is contacting CAB on Mon but I'm going out of my mind x