Most people rely on word-of-mouth to find plumbers, but when customers don’t have reliable referrals, they turn to the Internet next. Having an easy-to-find, credible, and usable website increases networking and business growth by providing a strong point of contact. .plumbing is the perfect TLD to use for this purpose because it connects plumbers via a common domain namespace, adds a recognizable title to a domain names, and helps define the industry niche.