APIS ENVIRONMENTAL SERVICES
Verified · NC NCOWCICBDurham, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
Inspector · NC NCOWCICB · verified 2026-06-25
Durham County, NC · Septic System Installation
Septic System Installation in Durham County
A new or replacement system in Durham County starts with a soil test and a permit — not a shovel.
Installing a septic system is the largest-ticket job a septic owner faces, and the design is dictated by your land: soil type, how fast it percolates, and how high the water table sits all decide what system you're allowed to build and what it costs.
Every legal install begins with a site evaluation and a county permit. The output of that evaluation — conventional drainfield, engineered mound, or an aerobic/nitrogen-reducing unit — is what drives the final price far more than the tank itself.
Local conditions in Durham County
Local ground is the deciding factor in Durham County: Most lots have adequate vertical separation, but perched seasonal water above clay can fail an otherwise good-looking lot — soil color (gray mottling) is the tell. And the rules here matter — all work under 15a ncac 18e with three-permit (ip/ca/op) sequence administered by each county health department, which can raise the cost of a new system considerably.
How a septic installation works
- Site & soil evaluation. A licensed evaluator or engineer tests percolation and locates the seasonal high water table to determine what the soil can handle.
- System design. The system is sized to your soil and the number of bedrooms, and the type is chosen — conventional, mound/filled, or aerobic.
- County permit. Plans are submitted to the county health department for an OSTDS construction permit before any work begins.
- Tank and drainfield install. The tank is set and the drainfield is built to spec, with fill brought in where the water table requires elevation.
- Final inspection. The county inspects the open system and signs off before it's covered and put into use.
What drives the cost
- System type — conventional vs. mound vs. aerobic/nitrogen-reducing
- Soil and water table (high water tables require expensive fill)
- Drainfield size, which scales with bedroom count
- Permit and engineering/site-evaluation fees
- Site access and how much excavation is needed
- Tank material and capacity
How to choose a pro
- Use a licensed Registered or Master Septic Tank Contractor
- Make sure they pull the county permit (never skip it)
- Insist the design matches your soil/site evaluation
- Get the warranty and final county approval in writing
20 septic system installation providers in Durham County
License-verified contractors (active state license) are listed first.
BULL CITY DIGGIN/DEMO LLC
Verified · Lic. 6564Durham, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level IV) · NC NCOWCICB · verified 2026-06-25
CAREFREE HOME INSPECTION SERVICES
Verified · NC NCOWCICBDurham, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
Inspector · NC NCOWCICB · verified 2026-06-25
CHRISTOPHER LEE MONCSKO
Verified · Lic. 9211Durham, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level II) · NC NCOWCICB · verified 2026-06-25
CLEAN SEPTIC TANK SERVICE
Verified · Lic. 14592Hillsborough, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level II) · NC NCOWCICB · verified 2026-06-25
CROSSROADS SITE DEVELOPMENT
Verified · Lic. 9939Bahama, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level IV) · NC NCOWCICB · verified 2026-06-25
ELIZABETH ARMSTRONG
Verified · Lic. 11909Durham, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level IV) · NC NCOWCICB · verified 2026-06-25
FESSENDEN ENTERPRISES LLC
Verified · Lic. 11988Hillsborough, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level II) · NC NCOWCICB · verified 2026-06-25
II
Verified · Lic. 15414Durham, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level II) · NC NCOWCICB · verified 2026-06-25
JEREME WALKER
Verified · Lic. 14944Durham, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level II) · NC NCOWCICB · verified 2026-06-25
RANGEL'S WATERPROOFING SOLUTIONS
Verified · Lic. 14586Durham, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level II) · NC NCOWCICB · verified 2026-06-25
SCOTT'S BACKHOE SERVICE
Verified · Lic. 1951Bahama, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level IV) · NC NCOWCICB · verified 2026-06-25
SCOTTY'S SANITATION SERVICES INC
Verified · Lic. 9237Durham, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
Inspector (Level II) · NC NCOWCICB · verified 2026-06-25
SEAN HOLLAND
Verified · Lic. 11369Durham, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level II) · NC NCOWCICB · verified 2026-06-25
STACKHOUSE MANAGEMENT
Verified · Lic. 6504Durham, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level II) · NC NCOWCICB · verified 2026-06-25
THE TRADESMAN COMPANY LLC
Verified · Lic. 14289Durham, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level II) · NC NCOWCICB · verified 2026-06-25
THIRD EYE HOME INSPECTIONS LLC
Verified · Lic. 14632Durham, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
Inspector (Level II) · NC NCOWCICB · verified 2026-06-25
TRI-AREA SEPTIC SOLUTIONS LLC
Verified · Lic. 12096Durham, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level IV) · NC NCOWCICB · verified 2026-06-25
WILLIAM GREGORY APPLE
Verified · Lic. 14551Durham, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level II) · NC NCOWCICB · verified 2026-06-25
WRENN MOWING & SEPTIC
Verified · Lic. 14742Durham, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level II) · NC NCOWCICB · verified 2026-06-25
Septic System Installation in Durham County — FAQ
What does a new septic system cost in Durham County?
Conventional systems commonly run from several thousand dollars to well over $10,000; mound and nitrogen-reducing systems cost more. Soil and water-table conditions in Durham County are the biggest cost driver.
Do I need a permit to install a septic system in Durham County?
Yes. Permits are issued by the Local authorized agent / county health department in Durham County, under North Carolina Department of Health and Human Services (NC DHHS), Division of Public Health — Environmental Health Section, On-Site Water Protection Branch (OSWP)., and the system must pass inspection before use.
How long does an installation take?
Once permitted, the install itself is often 1–3 days, but evaluation and permitting can add weeks. Plan ahead.