Keep the home fires burning

The chimney sweep came today. I thought I'd better get our chimney checked out before we get a stove.
He could get his smallest brush up - about the size of a fist - but nothing else. There has been a fall of bricks.
So guess what I'll be doing next?
If you see a blip showing a vista of the Malverns over house roofs through a big hole in a brick wall you'll know that it all went terribly wrong somewhere along the line.