Hello my name is ***** ***** I will help you.
When he went onto the roof, was there any damage?
It's a matter for the housing association. They are your landlord and it is their property. The housing association are ultimately responsible.
Therefore you should contact them. If there has been damage then that is due to be repaired. Housing association is totally liable to you as tenant.
Can I clarify anything for you about this today please?
Ok. The housing association would still be liable, as they instructed the contractor.
Does that clarify? Alex
This is common law of negligence. No Act of Parliament exists. You sue them, they counter sue the contractor.
Phone calls and this advice, yes. Alex
If I could invite you to rate my answer before you go today please, otherwise the site does not credit me for the time spent with you today. Thanks and good luck. Alex