There are many ways to take down a property and sometimes you may have to take it down by hand depending on how tight and narrow the available space is. It is also important that you know the necessary things you have to get shut off before you can actually do the demolition. Like gas, water, electricity, and sewer. Asbestos and mold testings are all extra and should be stated in the contract as extra when necessary. Make sure you speak to your township to know their requirements on what you need to get a permit and also to get the job started. Make sure you know if you are on a county road, because this will take you longer to get things done and requires you to get different specifics.
Make sure you know how many dumpsters you will need and know that you will have to seperate the materials like concrete and wood. If there is any items inside the property, you will have to remove them and disgard them seperately. Depending on where you are located the price can vary on how much it is to demo a house. The average house demo in NJ can start at $9000 up to $40,000.