Plumber Services Saint Clair MO Posey Family Plumbing is a plumbing company in Saint Clair, MO. We deliver world-class service by going above and beyond to meet our customer's needs. We service the Franklin, Gasconade, Jefferson and Saint Charles areas. Our staff is respectful, skillful, and knowledgeable. Some of our core values include integrity, premier service, and customer satisfaction. We pride ourselves on our commitment to excellence and outstanding customer service.