ERTEL is a trusted utility installation company specializing in natural gas and underground electric utilities across the southern half of South Carolina. From Horry to Beaufort Counties and the Grand Strand to the Midlands, we deliver reliable infrastructure that keeps communities connected and businesses moving forward.

As part of the Black Diamond Industries family, ERTEL combines hands-on field expertise with deep industry insight and access to expanded resources—including site surveying staff, hydrovac trucks, in-house trucking, and advanced excavation equipment. This collaborative approach allows us to deliver safe, efficient, and cohesive results on every project.

During the last 15 years, we have replaced and installed approximately 707.20 miles of natural gas distribution mains and services.