Mitchel Plumbing Co. Serving the Tacoma, WA - Pierce County area. Mitchel Plumbing has been providing quality services to residential and business customers in the Tacoma and surrounding area since 1978. Mitchel Plumbing's reputation for quality and workmanship has allowed us to become one of Tacoma's most preferred plumbing companies. Charles Mitchel, the founder of the Mitchel Plumbing Co., ...