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Brunswick County, NC · Septic System Installation

Septic System Installation in Brunswick County

A new or replacement system in Brunswick County starts with a soil test and a permit — not a shovel.

See 30 verified pros

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 Brunswick County

Local ground is the deciding factor in Brunswick County: Meeting the required separation to the seasonal high water table is the central challenge; many lots need imported fill, raised systems, or simply don't qualify without engineering. And the rules here matter — strict separation-to-seasonal-high-water-table drives heavy use of fill/mound and low-pressure pipe systems, which can raise the cost of a new system considerably.

How a septic installation works

  1. Site & soil evaluation. A licensed evaluator or engineer tests percolation and locates the seasonal high water table to determine what the soil can handle.
  2. System design. The system is sized to your soil and the number of bedrooms, and the type is chosen — conventional, mound/filled, or aerobic.
  3. County permit. Plans are submitted to the county health department for an OSTDS construction permit before any work begins.
  4. 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.
  5. 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

30 septic system installation providers in Brunswick County

License-verified contractors (active state license) are listed first.

3P LANDSCAPE & CONSTRUCTION LLC

Verified · Lic. 11889
Ash, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level IV) · NC NCOWCICB · verified 2026-06-25

AARON F HARWARD

Verified · Lic. 11378
Southport, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level II) · NC NCOWCICB · verified 2026-06-25

ACL LANDSCAPES INC

Verified · Lic. 11084
Supply, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level II) · NC NCOWCICB · verified 2026-06-25

AGGRESSIVE LAND MANAGEMENT

Verified · Lic. 11702
11702, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level IV) · NC NCOWCICB · verified 2026-06-25

AGRESSIVE LAND MANAGEMENT

Verified · Lic. 9665
Ocean Isle, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
Inspector (Level IV) · NC NCOWCICB · verified 2026-06-25

AZIZ JALAL

Verified · Lic. 11613
Supply, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
Inspector (Level IV) · NC NCOWCICB · verified 2026-06-25

B & J CONSTRUCTION OF NC LLC

Verified · Lic. 14269
Supply, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level IV) · NC NCOWCICB · verified 2026-06-25

BOWENS EXCAVATION

Verified · Lic. 11055
Shallotte, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level IV) · NC NCOWCICB · verified 2026-06-25

C & H EXCAVATION

Verified · Lic. 14720
Supply, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level II) · NC NCOWCICB · verified 2026-06-25

CAROLINA KLEAN LATRINE LLC

Verified · Lic. 4381
Shallotte, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
Inspector (Level II) · NC NCOWCICB · verified 2026-06-25

CLARK'S SEPTIC AND LAND SERVICES LLC

Verified · Lic. 6210
Inspector, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
Inspector (Level IV) · NC NCOWCICB · verified 2026-06-25

CONSTRUCTION SERVICES UNLIMITED

Verified · Lic. 15150
Supply, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level II) · NC NCOWCICB · verified 2026-06-25

COTTLE BUILDERS LLC

Verified · Lic. 15290
15290, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level II) · NC NCOWCICB · verified 2026-06-25

COX CONSTRUCTIN GROUP INC

Verified · Lic. 6614
Bolivia, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level II) · NC NCOWCICB · verified 2026-06-25

DERRICK SHELOR

Verified · Lic. 11391
Southport, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level IV) · NC NCOWCICB · verified 2026-06-25

DTM CONSTRUCTION

Verified · Lic. 4651
Ash, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level IV) · NC NCOWCICB · verified 2026-06-25

DYLAN MARK HOOTEN

Verified · Lic. 9183
Leland, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level II) · NC NCOWCICB · verified 2026-06-25

EARTH PRO CONST

Verified · Lic. 9617
9617, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level II) · NC NCOWCICB · verified 2026-06-25

ELITE LAND SERVICE LLC

Verified · Lic. 14927
Supply, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level II) · NC NCOWCICB · verified 2026-06-25

EVANS DUMP TRUCK & SEPTIC TANK SER

Verified · Lic. 2024
Supply, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
Inspector (Level IV) · NC NCOWCICB · verified 2026-06-25

FALLEN OAK LAWN & SEPTIC

Verified · Lic. 11802
Leland, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level II) · NC NCOWCICB · verified 2026-06-25

FULWOOD SEPTIC SERVICE

Verified · Lic. 15231
Ash, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level II) · NC NCOWCICB · verified 2026-06-25

GOOD OLE BOYS LAND MANAGEMENT

Verified · Lic. 11675
Southport, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level II) · NC NCOWCICB · verified 2026-06-25

GOODWIN SERVICES

Verified · Lic. 2445
Winnabow, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level II) · NC NCOWCICB · verified 2026-06-25

GROUND WORKS LAND AND SEPTIC INC

Verified · Lic. 8033
Supply, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
Inspector (Level IV) · NC NCOWCICB · verified 2026-06-25

HARMS MHP INVESTMENTS LLC

Verified · Lic. 15321
Shallotte, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level II) · NC NCOWCICB · verified 2026-06-25

HAYFIELD HOLDINGS LLC

Verified · Lic. 9209
Calabash, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level II) · NC NCOWCICB · verified 2026-06-25

HENRY STONE

Verified · Lic. 14922
14922, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level II) · NC NCOWCICB · verified 2026-06-25

HENRY WASTEWATER SERVICES L L C

Verified · Lic. 6848
Shallotte, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
On-Site Wastewater Contractor (Level IV) · NC NCOWCICB · verified 2026-06-25

HOFFMAN SEPTIC SERV

Verified · Lic. 2030
Southport, NC
Septic Tank PumpingSeptic RepairSeptic InspectionSeptic System Installation
Inspector (Level IV) · NC NCOWCICB · verified 2026-06-25
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Septic System Installation in Brunswick County — FAQ

What does a new septic system cost in Brunswick 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 Brunswick County are the biggest cost driver.

Do I need a permit to install a septic system in Brunswick County?

Yes. Permits are issued by the Local authorized agent / county health department in Brunswick 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.

Other services in Brunswick County

Emergency Septic ServiceSeptic RepairSeptic Tank PumpingSeptic Inspection

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