LEFF Construction Design Build Categories Contractors 6791 Sebastopol Avenue, Suite 140 Sebastopol CA 95472 (707) 823-4899 (707) 823-5014 Visit Website Rep/Contact Info Mr. David Leff × Mr. David Leff President & CEO Phone: (707) 823-4899 Fax: (707) 823-5014 Send an Email Share × Print Email Facebook Twitter LinkedIn Tell a Friend ×