Had now 3 yearly charges from BGW and they are slighlty changes for the Maintance fees but they most in line with each year , BGW each year invites you to go to the meeting or sent you the draft for the new calender year with arising costs so you can vote if you like for this changes however if you are with K they will do it for you !
Repair fee`s are charged very different with varouis housing management companies some start at 2000 Euro and add from 5 - 9 % to you for there assistance , check your contract ,
secondly big charges occur when your tenant leaves , k charges 2 cold rents to look for a new tenant , others charge 1 cold rent or some nothing at all as agents charges it back to the new tenant .
When your flat is not occupied some Housing managemant companies still charge , some not , some only the first month !!
However Lawyers fee`s for problem arising are cross charged in all cases , it is really worth it to look out in your contract for charges .
Other charges can be running your yearly account i have seen contract of 100 Euro`s yearly as German banks charge for managing your account if you do not pay in your salary .
BTW next Year comes out the new Mietspiegel for Berlin all 2 Years ,and this tells you if your rent is in line with your area , you can check if it is worth to put your rent up or not , not long to go for this, your housing company should do this automatically however some charge for this too service , k chagres 20 euro `s