Of course you must speak to them. I would be horrified if my dog was barking away all the time I was out and would want to know.

In my view it is wrong to leave dogs by themselves for 6 hours anyway - there are plenty of dog sitters in the area.

Suspect the RSPCA would be interested if dogs were being regularly left alone for that long.

Or try https://www.lewisham.gov.uk/myservices/e...fault.aspx