Dwyer Group has reacquired the master franchise license for Drain Doctor in the U.K. The acquisition is the latest in a series of purchases by Dwyer Group, emphasizing the company’s growing interest in direct franchising on an international level. Terms of the deal were not disclosed. The equivalent brand to Dwyer Group’s Mr. Rooter system in North America, Drain Doctor is the largest combined plumbing and draining company in the U.K. with 80 locations.