Sewer Leak Detection | 24 Hr Plumbing Dallas TX | Dial OneDependable plumbing service at Dial One Johnson. Operating since 1965, it is our top priority to provide open communication and honest service that will give you peace of mind. Your home's plumbing and sewer systems have most likely been a part of your house from the time it was built. Give us a call to schedule plumbing services Dallas today!