I have a dog who is a year in a half. He marks all over the house. If I get him neutered will he stop, or is it already habit? Please help! I love him and don't want to get rid of him.

It depends on the dog, honestly. Some turn around, but for many it's become a behavioural issue.

Yea it can definitely help, but if it doesn't there is always behaviour modification that can help as well. What are your housebreaking habbits now?