There are many ways that you can do this. The first thing to do is to make an inventory of all the things in your house. This will give you a rough idea about the size of your move. You need to make sure that you have the things that you need to complete your move. A checklist would help a lot. You can make a note of all the items in your hose hold and write them down. After you complete the move, you can cross check with this list of items to make sure that you have not forgotten anything. This will make sure that you have not lost any of items after the move. This will also help you explain to the local San Francisco mover what the size of your move would be. This will help to get an approximate quote of how much your move will cost you.
The next thing that you should remember is that if you have special needs like auto transport or piano transport you should make sure that you mention this to your movers. Some movers may or may not cover this. Therefore you need to be sure that you have the exact detail of what your movers can do for you and what they can't. You can compare around with many movers in the market and their facilities and choose the ones that are best suited for your needs. This will help you get the best of the lot.