John Conner Co is a trusted plumbing company serving Houston, TX and Southeast Wisconsin. Built on a foundation of honest work, fair pricing, and reliable service, we specialize in residential and commercial plumbing solutions—from repairs and installations to water heaters and drain services.

What started in Southeast Wisconsin has expanded to Houston, bringing the same commitment to quality workmanship and dependable service. At John Conner Co, we don’t believe in shortcuts—just solid work done right the first time.