Many home owners are cautious about allowing house sitters move into their homes without checking their references first. It is strongly recommended that you do provide references. These can be from your estate agent or a former or current landlord. They could also be from previous satisfied home owners who have used and enjoyed your house sitting services. Basically the home owner just wants to have some idea of who you are to reassure them that you're not wanted in three states! Also, home owners can easily see which house sitters have references by doing a simple search, so it's a good idea to have references to improve your chances of being contacted.