Mailing Information: HECO Limited 24 Hiscott Street St. Catharines, Ontario L2R 1C6 Contact Numbers: Telephone: (905) 688-6350 Toll Free: 1-800-570-4326   Fax: (905) 688-2308   Email: HECOltd@vaxxine.com Contact Form: Need more information about HECO's products and services? Fill out our contact form and we will be in touch soon!