I am literally freaking out! There is something in my roof! we have heard it for months, possibly even years!

Just now i have the telly switched off and the house is deadly quiet and something was walking in the roof above the loungeroom. Then i guess it fell over as there was this thud and then a sound like it was dragging something else.

I have begged DP to investigate but he's worried whatever it is will attack him if he put his head up into the man hole

Who do i call to come out and investigate for me? Rspca? exterminator??