Clayton, North Carolina

Licensed Septic Companies in Clayton, NC

22 septic companies serve Clayton, North Carolina, and 22 of them hold a North Carolina septic license or certification matched to the NC Onsite Wastewater Contractors & Inspectors Certification Board list (data as of October 2026).

Septic services in Clayton

Guides: Septic tank pumping · Septic system installation · Septic inspection · Installation cost · Pumping cost

22 septic companies in Clayton

  • Absolute Septic

    Clayton, NC · Johnston County

    • Licensed: North Carolina Certified Onsite Wastewater (Septic) Installer (Level II) · #9043 (NC Onsite Wastewater Contractors & Inspectors Certification Board, verify)

    Per state license: Installation

    (919) 649-6044

  • Advanced Quality Inspections

    Clayton, NC · Johnston County

    • Licensed: North Carolina Certified Onsite Wastewater (Septic) Inspector · #11405I (NC Onsite Wastewater Contractors & Inspectors Certification Board, verify)

    Per state license: Inspection

    (919) 348-7679

  • Agustin Avila Construction

    Clayton, NC · Johnston County

    • Licensed: North Carolina Certified Onsite Wastewater (Septic) Installer (Level II) · #9428 (NC Onsite Wastewater Contractors & Inspectors Certification Board, verify)

    Per state license: Installation

    (919) 888-3151

  • American Environmental & Excavation

    Clayton, NC · Johnston County

    • Licensed: North Carolina Certified Onsite Wastewater (Septic) Installer (Level II) · #11142 (NC Onsite Wastewater Contractors & Inspectors Certification Board, verify)

    Per state license: Installation

    (919) 720-6086

  • Capitol City Clearing

    143 Churchill Downs Dr, Clayton, NC 27520 · Johnston County

    • Licensed: North Carolina Certified Onsite Wastewater (Septic) Installer (Level II) · #15207 (NC Onsite Wastewater Contractors & Inspectors Certification Board, verify)

    Per state license: Installation

    (919) 815-5061 capitolcityclearing.com

  • Charles Sessoms

    Clayton, NC · Wake County

    • Licensed: North Carolina Certified Onsite Wastewater (Septic) Installer (Level IV + Inspector) · #1240 (NC Onsite Wastewater Contractors & Inspectors Certification Board, verify)

    Per state license: Installation · Inspection

    (919) 359-1550

  • Diamantes Construction LLC

    313 Covered Bridge Rd, Clayton, NC 27520 · Johnston County

    • Licensed: North Carolina Certified Onsite Wastewater (Septic) Installer (Level II) · #11252 (NC Onsite Wastewater Contractors & Inspectors Certification Board, verify)

    Per state license: Installation

    (919) 675-4050 diamantesconstruction.com

  • Environmental Systems & Services Ofnc

    Clayton, NC · Johnston County

    • Licensed: North Carolina Certified Onsite Wastewater (Septic) Installer (Level IV + Inspector) · #4867 (NC Onsite Wastewater Contractors & Inspectors Certification Board, verify)

    Per state license: Installation · Inspection

    (984) 285-2563

  • Frank Howard Backhoe

    Clayton, NC · Johnston County

    • Licensed: North Carolina Certified Onsite Wastewater (Septic) Installer (Level IV + Inspector) · #5077 (NC Onsite Wastewater Contractors & Inspectors Certification Board, verify)

    Per state license: Installation · Inspection

    (919) 553-2544

  • G And G Consultants LLC

    Clayton, NC · Johnston County

    • Licensed: North Carolina Certified Onsite Wastewater (Septic) Installer (Level II) · #11254 (NC Onsite Wastewater Contractors & Inspectors Certification Board, verify)

    Per state license: Installation

    (919) 243-8869

  • Grier Construction Company LLC

    Clayton, NC · Johnston County

    • Licensed: North Carolina Certified Onsite Wastewater (Septic) Installer (Level II) · #13068 (NC Onsite Wastewater Contractors & Inspectors Certification Board, verify)

    Per state license: Installation

    (984) 235-5606

  • Jim'S Septic Solutions LLC

    145 Cambridge Elm Dr, Clayton, NC 27520 · Johnston County

    • Licensed: North Carolina Certified Onsite Wastewater (Septic) Installer (Level II + Inspector) · #7276 (NC Onsite Wastewater Contractors & Inspectors Certification Board, verify)

    Per state license: Installation · Inspection

    (919) 909-5668

  • Johnson Farms

    Clayton, NC · Johnston County

    • Licensed: North Carolina Certified Onsite Wastewater (Septic) Installer (Level II) · #4340 (NC Onsite Wastewater Contractors & Inspectors Certification Board, verify)

    Per state license: Installation

    (919) 369-7602

  • Neuse River Septic Tank Pumping

    Clayton, NC 27520, Clayton, NC 27520 · Johnston County

    • Licensed: North Carolina Certified Onsite Wastewater (Septic) Inspector · #13047I (NC Onsite Wastewater Contractors & Inspectors Certification Board, verify)

    From their website: Pumping Per state license: Inspection

    (919) 434-9776 neuseriverseptic.com

  • Rzany Home Inspections LLC

    Clayton, NC · Johnston County

    • Licensed: North Carolina Certified Onsite Wastewater (Septic) Inspector · #9488I (NC Onsite Wastewater Contractors & Inspectors Certification Board, verify)

    Per state license: Inspection

    (919) 228-8611

  • Scott'S Customs LLC

    Clayton, NC · Johnston County

    • Licensed: North Carolina Certified Onsite Wastewater (Septic) Installer (Level II) · #5774 (NC Onsite Wastewater Contractors & Inspectors Certification Board, verify)

    Per state license: Installation

    (919) 243-8196

  • Scotts Customs LLC

    1768 Little Creek Church Rd, Clayton, NC 27520 · Johnston County

    • Licensed: North Carolina Certified Onsite Wastewater (Septic) Installer (Level II) · #15350 (NC Onsite Wastewater Contractors & Inspectors Certification Board, verify)

    Per state license: Installation

    (919) 235-7200 villagecustomsratrods.com

  • T & C Construction Group LLC

    Clayton, NC · Johnston County

    • Licensed: North Carolina Certified Onsite Wastewater (Septic) Installer (Level II) · #14837 (NC Onsite Wastewater Contractors & Inspectors Certification Board, verify)

    Per state license: Installation

    (919) 262-9746

  • Thornton'S Plumbing

    3160 Vinson Rd A, Clayton, NC 27527 · Johnston County

    • Licensed: North Carolina Certified Onsite Wastewater (Septic) Installer (Level II) · #2534 (NC Onsite Wastewater Contractors & Inspectors Certification Board, verify)
    • Licensed: North Carolina Certified Onsite Wastewater (Septic) Installer (Level II) · #6682 (NC Onsite Wastewater Contractors & Inspectors Certification Board, verify)

    Per state license: Installation

    (919) 550-4833 thorntonsplumbinginc.com

  • Top 2 Bottom Inspections Inc

    Clayton, NC · Johnston County

    • Licensed: North Carolina Certified Onsite Wastewater (Septic) Inspector · #4117I (NC Onsite Wastewater Contractors & Inspectors Certification Board, verify)

    Per state license: Inspection

    (919) 631-1805

  • Valencia Grading Inc

    Clayton, NC · Johnston County

    • Licensed: North Carolina Certified Onsite Wastewater (Septic) Installer (Level II) · #6947 (NC Onsite Wastewater Contractors & Inspectors Certification Board, verify)

    Per state license: Installation

    (706) 982-3803

  • Woodall Excavating LLC

    Clayton, NC · Johnston County

    • Licensed: North Carolina Certified Onsite Wastewater (Septic) Installer (Level II) · #3881 (NC Onsite Wastewater Contractors & Inspectors Certification Board, verify)

    Per state license: Installation

    (706) 490-3885

Septic licensing in North Carolina

North Carolina certifies onsite wastewater installers by grade and certifies inspectors; the board publishes its certification list. The NC Onsite Wastewater Contractors & Inspectors Certification Board issues these credentials: Grade Level II installer; Grade Level IV installer; Point-of-sale inspector.

Permits for new systems, replacements and most repairs are issued locally. Ask the contractor which office handles Clayton and whether the permit fee is in their quote.

North Carolina septic licensing: agencies, license types and how to check a license →

Septic companies in Clayton: common questions

How many licensed septic companies are in Clayton, NC?

22 septic companies serve Clayton, North Carolina, and 22 of them hold a North Carolina septic license or certification matched to the NC Onsite Wastewater Contractors & Inspectors Certification Board list (data as of October 2026). Each license badge on this page names the agency and links to its lookup so you can confirm it.

Who licenses septic contractors in North Carolina?

North Carolina certifies onsite wastewater installers by grade and certifies inspectors; the board publishes its certification list. The licensing body is the NC Onsite Wastewater Contractors & Inspectors Certification Board.

Which companies pump septic tanks in Clayton?

1 of the 22 listings in Clayton offer septic tank pumping, either on their own website or under a state pumper license. Use the service filter above to show only those companies.

Which companies install septic systems in Clayton?

18 listings in Clayton install septic systems. New systems and replacements need a permit, so ask each installer to handle the permit and to show their North Carolina license.

How do I check a septic contractor's license in North Carolina?

Use the NC Onsite Wastewater Contractors & Inspectors Certification Board's lookup (https://ncowcicb.info/certification-list/) and search the contractor's name or license number. Our guide to checking a septic license walks through it.