Just because they claim to be pond builders does not mean a thing. Before I found my guy I talked to many "pond builders" and by dumb luck I did not hire them. My guy really loves his work and can share a vision of the project and what it will be when completed. As I said before a pond is not just a big hole in ther ground that catches water. See your "pond builders" other work and feel comfortable with them personally as they become almost part of the family as you work through the project.

You need to trust each other and though it is a business proposition it must also be mutually benificial or you will both loose in the long run.