We went to a relative’s wedding reception and were put at a table near the kitchen door. There was a terrific draught, and we became so cold that special arrangements had to be made to take us back to the hotel and our weekend was ruined. However our claim for compensation has been rejected on the grounds that we were not the paying clients and that it was an “old building”.
If there’s to be a question of compensation it will have to be raised by the wedding couple, who presumably organised (and paid for) the event. If they were dissatisfied with the arrangements they could ask for some of their money back. You have no legal relationship with the owners.