For after-hours emergency, will call and/or commercial water heater full service delivery, please call (800) 217-9480. Ferguson Waterworks delivers quality products and innovative solutions across the water, sanitary sewer and stormwater management industries. As one of the nation's largest waterworks supply companies, Ferguson puts your needs first. Everyday, public and private water sewer authorities, utility contractors, public works/line contractors and heavy highway contractors count on Ferguson because of our world-class service.