Yes a Junk removal business can be a good business because it is rewarding to clean up and clean out 

i like jobs where i can get in and get out within a couple of days some jobs are really short but sometimes rental or home sales clean outs can takes a few days depending on what all is left behind for the most part you won't get anything much of value but sometimes you can find a Jem hiding in  .

sometimes people just want there appliances taking off a couch or large idem just keep your number out there and you never know what you can get into 

i also like to separate all the scrap medal out of the pile because that can add up to a little bit of money as well ..