How do i contact ecolab customer service? Ecolab Inc. 1 Ecolab Place. St. Paul, MN 55102. Ecolab Customer Service. Phone: +1-800-352-5326. Nalco Water Customer Service. Phone: +1-800-288-0879. Nalco Champion Customer Service. Phone: +1-877-288-3512.Why partpartner with ecolab? Partner with Ecolab and you'll have access to the industry's leading commercial dishwashing / warewashing equipment and processes. Commercial kitchens need durable and versatile dishwashing equipment, so you can clean efficiently and keep employees and customers safe and healthy.Do you have questions and comments about ecolab? We know you have questions and comments. That's what this page is for. Select the area of your interest and you'll be off to the right Contact Us information. Thanks for your interest in our Ecolab.How much does it cost to ship from ecolab? Click here to request more information about Ecolab's products and services. $9.95 Flat Rate Shipping for standard ground shipments in contiguous 48 US States for online orders only. No minimums. No codes. Exclusions include Next Day Air Delivery, Two Day Air Delivery, international and Less than Load shipments. For same day shipping: