The Internet has changed the way people buy. In 2011 consumers doubled the number of resources consulted when making a purchase decision. Studies on buyer decision making call the decision point the "zero moment of truth". Currently 88% of buyers now engage in "zero moment of truth" before making a final decision.
A well designed website lends credibilty to your business, it tells people you care about working with them. Many businesses try to get by on a DIY web site or a Facebook page. Ask yourself, "what does this say about my business?"
What you need is a well thought out strategy. A mobile responsive website that communicates who you are and how you will treat a customer.
There are two major things you need to think about. How to get users to your website (sometimes called traffic). Then how to get a user to take the next step (sometimes called engagement).