Plumbing Contractors Referral Service is a subdivision of the Plumbing, Heating, and Air-Conditioning Contractors industry. This industry involves providing a referral service for plumbing contractors to customers who require plumbing services. Plumbing Contractors Referral Service companies act as intermediaries between customers and plumbing contractors, connecting customers with the right plumbing contractor for their specific needs. These companies typically have a database of licensed and insured plumbing contractors that they work with, and they match customers with the most suitable contractor based on the customer's location, budget, and the type of plumbing work required.