Established in 1968, Mr. Rooter is the largest all-franchised, full-service plumbing and drain cleaning company in the world with over 300 franchises worldwide. Recognized by Entrepreneur magazine among its Franchise 500 and Franchise Times Top 200 since 2011, Mr. Rooter Plumbing franchisees provide services to residential, commercial, and industrial customers. Mr. Rooter began franchising in 1972, has six affiliate companies – Aire Serv Heating & Air Conditioning, Glass Doctor, Mr. Appliance, Mr. Electric, Rainbow International and The Grounds Guys Landscape Management, and is a subsidiary of The Dwyer Group, Inc., which is based in Waco, Texas. The Riverside Company, and the Dwyer family bought the company in 2003.
At the start of 2010, Mr. Rooter Plumbing was included in the 2nd Annual "AllBusiness AllStar Franchises" list. The "AllBusiness AllStar Franchises" list is compiled by Dun & Bradstreet's subsidiary AllBusiness.com, and ranks the top 300 franchises in the United States.