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Mandan, North Dakota

Licensed Septic Companies in Mandan, ND

19 septic companies serve Mandan, North Dakota, and 19 of them hold a North Dakota septic license or certification matched to the North Dakota Department of Environmental Quality / local health districts list (data as of October 2026).

19 septic companies in Mandan

  • Barrett Excavating, Inc.

    PO Box 116, Mandan, ND 58554 · Morton County

    • Licensed: North Dakota Licensed Septic Installer (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 391-6811

  • Bowers Excavating

    P.O. Box 145, Mandan, ND 58554 · Morton County

    • Licensed: North Dakota Licensed Septic Installer (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 663-5619

  • Buffalo Concrete

    2311 3rd St. SE, Mandan, ND 58554 · Morton County

    • Licensed: North Dakota Licensed Septic Installer (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 391-4878

  • CB Excavating, LLC

    Mandan, ND · Morton County

    • Licensed: North Dakota Licensed Septic Installer (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 214-7320

  • Creative Construction, LLC

    4720 19th St SE, Mandan, ND 58554 · Morton County

    • Licensed: North Dakota Licensed Septic Installer (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 319-3446 creativeconstructionllc.net

  • Dakota Drain Fields, Llp

    3008 Northshore Loop SE, Mandan, ND 58554 · Morton County

    • Licensed: North Dakota Licensed Septic Installer (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 955-4615

  • DB Plumbing and Service

    1309 2nd St SW, Mandan, ND 58554 · Morton County

    • Licensed: North Dakota Licensed Septic Installer (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 368-9485

  • Evolve Contracting LLC

    3766 Molon Labe Pl, Mandan, ND 58554 · Morton County

    • Licensed: North Dakota Licensed Septic Installer (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 319-0835

  • Interstate Excavation

    5400 Old Red Trail, Mandan, ND 58554 · Morton County

    • Licensed: North Dakota Licensed Septic Installer (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 391-6208

  • Kaelberer Construction, Inc.

    1800 40th Avenue SE, Mandan, ND 58554 · Morton County

    • Licensed: North Dakota Licensed Septic Installer (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 663-5313 kaelbererconstruction.com

  • Kioti Contracting, LLC

    5721 Highland Road, Mandan, ND 58554 · Morton County

    • Licensed: North Dakota Licensed Septic Installer (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 425-9915

  • Klesalek Excavating

    4655 26th Ave, Mandan, ND 58554 · Morton County

    • Licensed: North Dakota Licensed Septic Installer (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 663-6879

  • Nodak Plumbing & Heating, Inc.

    2141 37th Street, Mandan, ND 58554 · Morton County

    • Licensed: North Dakota Licensed Septic Installer (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 663-7085

  • Nottestad Excavating LLC

    3266 Crownwest Dr N, Mandan, ND 58544 · Emmons County

    • Licensed: North Dakota Licensed Septic Installer (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 400-0324

  • Schaff And Sons Repair

    PO Box 339, Mandan, ND 58554 · Morton County

    • Licensed: North Dakota Licensed Septic Installer (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 663-5935

  • Schlosser Excavating

    1709 Mandan Ave, Mandan, ND 58554 · Morton County

    • Licensed: North Dakota Licensed Septic Installer (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 663-3408

  • Storms Construction, Inc.

    3801 Memorial Hwy. Ste. A Box 107, Mandan, ND 58554 · Morton County

    • Licensed: North Dakota Licensed Septic Installer (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 663-5565

  • TJ Enterprise

    Mandan, ND · Morton County

    • Licensed: North Dakota Licensed Septic Installer (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 527-6168

  • True Grade LLC

    307 12th Ave NW, Mandan, ND 58554 · Morton County

    • Licensed: North Dakota Licensed Septic Installer (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 202-9885

Septic licensing in North Dakota

North Dakota began licensing septic installers statewide under 2025 legislation (SB 2267); local public health units administer the program. The North Dakota DEQ and local public health units issues these credentials: Annual septic installer license.

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

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

Septic companies in Mandan: common questions

How many licensed septic companies are in Mandan, ND?

19 septic companies serve Mandan, North Dakota, and 19 of them hold a North Dakota septic license or certification matched to the North Dakota Department of Environmental Quality / local health districts 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 Dakota?

North Dakota began licensing septic installers statewide under 2025 legislation (SB 2267); local public health units administer the program. The licensing body is the North Dakota DEQ and local public health units.

Which companies install septic systems in Mandan?

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

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

Use the North Dakota DEQ and local public health units's lookup (https://deq.nd.gov/WQ/) and search the contractor's name or license number. Our guide to checking a septic license walks through it.