Did you know that San Diego is known for the drywall professionals. As a drywall contractor I recommend that you make sure that the person or company you hire for drywall installation has the experience in the sheetrock install, taping and texturing process. Texturing is the final process to your finished product.
Texture may seem to be easy to do, but if not applied correctly may expose your patch or work when the pain is applied.
Always make sure the working area is clean before they start, this is to ensure the work to be completed in a timely manner. It says a lot that when the work is finished that the drywall person or drywall contractor doing the work cleans the working area.