In our flat we have a fire door that connects two different buildings together and is stated as a fire exit door. we have had two emails where they said we are using it to go into the other flat and that it is a breach of our contract. the problem is maintenance are repeatedly using this door at ridiculous times up to 4 in the morning. is this allowed as it is a distrubance for all of my flat and they are emailing us about using it when they are also. Any ideas?