Septic contractors by North Carolina county

What the counts do and do not mean

North Carolina certifies the installer personally, and the board publishes the company each certified installer works for. The county health department permits and inspects the system itself, so a job normally involves both.

The number against each county is how many licensed businesses give that county as their address — not how many will travel to it. A North Carolina licence is granted by NC OWCICB and is valid across the state, so a company two counties away can legally do the work. In a rural county the listed handful is rarely the real choice set, which is why every county page here also lists its neighbours.

Certifications run to 31 December and are renewed annually. Grade Level II requires 3 hours of continuing education a year and Grade Level IV requires 6.

The licence types in this table

• Installers — a business licensed for the work that installs, repairs and replaces onsite wastewater systems.
• Inspectors — an individual who is separately certified to inspect onsite wastewater systems.