Before you decide to hire orange county web design, it would be better if you can know your own goal first. Your goal might be depend on the kind of business which you have. if you mainly used your website for e-commerce purpose, then your main focus would be the ROI, and to build and maintain your customers base. If you plan to make a new business from the start and increase your own brand awareness, then you can simply use your website as a tool to tell other people about your company and your product.
When you know what kind of goal which you want to achieve, then it would be easier for you to determine the cost which you have to spend. In any case, cost would be the deal maker or the breaker when you want to hire an agency and make your won professional business website.