Be flexible and be realistic with your remodeling job.
Homeowners in San Diego are often not aware that remodeling an existing house is much harder -- and more expensive -- than new construction. You have to work with or around past mistakes, and you don't always know what's there until the work's begun.
In addition, in today's active construction market, goods are often in tight supply and unforeseen delays may find subcontractors heading off to other jobs. Talk to your contractor to be sure the estimated time frame has some wiggle room.
Below are some additional links to helpful information