It’s nearly impossible to provide an accurate quote to a prospective web design client without first gathering information about what that particular client needs. Some designers do this in either a face-to-face meeting or over the phone, but more often, they have a questionnaire that prospective clients fill out. This is preferable for a couple of reasons, but the most important is probably that this document then becomes an integral part of the design process and is available to refer back to along the way.