1,072 licensed providers across 97 counties
Installing a new septic system in North Carolina requires a permit from the county environmental health department, which operates under NCDENR guidelines. A certified soil scientist must first perform a site evaluation, including perk tests and soil borings, to determine which system type the lot can support. Conventional gravity systems are the most affordable option, while engineered systems — including low-pressure pipe, drip irrigation, or advanced pretreatment units — are required on sites with challenging soil or terrain.
Conventional septic installation in NC runs $3,000–$8,000, covering the tank, drain field, and basic labor. Engineered systems can exceed $15,000 depending on complexity. Mountain properties with steep grades and shallow bedrock often require pressure-dosed systems or multiple drain field trenches cut into hillsides. Coastal Plain sites near the Outer Banks or tidal rivers may need raised sand mound systems to keep components above the seasonal high water table.
Piedmont clay soils typically require larger drain fields because the soil's slow percolation rate limits how quickly effluent can absorb. Homeowners building on undeveloped lots should budget for the site evaluation ($400–$800) in addition to the installation itself. County permit fees range from $200–$500, and most jurisdictions require a final inspection before the system can be covered and put into service.
Buncombe County
61 providers
Henderson County
49 providers
Wake County
33 providers
Davidson County
30 providers
Transylvania County
27 providers
McDowell County
25 providers
Ashe County
23 providers
Iredell County
23 providers
Johnston County
23 providers
Madison County
23 providers
Burke County
22 providers
Haywood County
22 providers
Alamance County
21 providers
Forsyth County
21 providers
Randolph County
20 providers
Yancey County
20 providers
Jackson County
19 providers
Lincoln County
19 providers
Catawba County
18 providers
Macon County
18 providers
Union County
18 providers
Watauga County
18 providers
Onslow County
17 providers
Stanly County
17 providers
Cherokee County
16 providers
Avery County
15 providers
Brunswick County
15 providers
Cabarrus County
15 providers
Carteret County
15 providers
Moore County
15 providers
Cleveland County
14 providers
Rutherford County
14 providers
Gaston County
13 providers
Harnett County
13 providers
Rowan County
13 providers
Alexander County
12 providers
Guilford County
12 providers
Davie County
11 providers
Polk County
11 providers
Chatham County
10 providers
Franklin County
10 providers
Rockingham County
10 providers
Surry County
10 providers
Bladen County
9 providers
Craven County
9 providers
Dare County
9 providers
Pender County
9 providers
Yadkin County
9 providers
Caldwell County
8 providers
Clay County
8 providers
Mitchell County
8 providers
Person County
8 providers
Stokes County
8 providers
Wilkes County
8 providers
Pamlico County
7 providers
Swain County
7 providers
Alleghany County
6 providers
Granville County
6 providers
Hoke County
6 providers
Mecklenburg County
6 providers
New Hanover County
6 providers
Orange County
6 providers
Bertie County
5 providers
Greene County
5 providers
Nash County
5 providers
Wayne County
5 providers
Chowan County
4 providers
Columbus County
4 providers
Cumberland County
4 providers
Currituck County
4 providers
Pasquotank County
4 providers
Pitt County
4 providers
Sampson County
4 providers
Anson County
3 providers
Durham County
3 providers
Edgecombe County
3 providers
Martin County
3 providers
Northampton County
3 providers
Richmond County
3 providers
Vance County
3 providers
Warren County
3 providers
Wilson County
3 providers
Beaufort County
2 providers
Caswell County
2 providers
Duplin County
2 providers
Gates County
2 providers
Hertford County
2 providers
Jones County
2 providers
Lee County
2 providers
Montgomery County
2 providers
Camden County
1 provider
Graham County
1 provider
Perquimans County
1 provider
Robeson County
1 provider
Scotland County
1 provider
Tyrrell County
1 provider
Washington County
1 provider
North Carolina requires licensing for septic system contractors and well drillers to protect public health and the environment. Licensed providers carry proper insurance, follow state regulations, and have demonstrated competency through testing and experience requirements. Choosing a licensed provider protects your investment and ensures work meets code.
buyers-guideBefore buying land florida septic feasibility must be verified. High water tables, karst geology, and BMAP spring zones can add $20,000+ to building costs — or make the lot unbuildable entirely.
state-guideThe types of septic systems florida homeowners can install depend on soil conditions, water table depth, and proximity to springs. Compare conventional, mound, ATU, ENR, and performance-based systems with costs.
state-guideFlorida septic tank size requirements start at 900 gallons for 2-bedroom homes, with sizing based on 120 GPD per bedroom. See FL DEP minimums, tank materials, and high water table considerations.
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