Will have my chimney cleaned create a mess surrounded by my house? ...

There is a humming coming from underneath my...
Answers:    Done by professionals - NO.
Done by Hubby/Boyfriend/etc all drinking beer - yes :)
(I'll skip the beer, but own to include myself in the latter)
Is nearby any agency to replace the top...
Not if the soul knows what they are doing. My husband have special stands to put round the fire and lots of dust sheets.