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North Dakota

Licensed Septic Companies in North Dakota

The Septic Guide lists 393 septic companies and licensed septic professionals in North Dakota; 393 are matched to the North Dakota Department of Environmental Quality / local health districts license or certification lists (data as of October 2026).

393listed in North Dakota
393matched to a state license or certification
393with a phone number
30county and town pages

Septic companies by county

Septic companies by city

Septic services in North Dakota

Counts of North Dakota listings by service, from each business's own website or the type of state license it holds.

  • 1 septic tank pumping · guide
  • 393 septic system installation · guide
  • 1 septic inspection · guide
  • 3 septic repair · guide
  • 5 drain field repair · guide
  • 3 perc testing and site evaluation

Who licenses septic work in North Dakota?

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

Credentials: Annual septic installer license.

Agency: North Dakota DEQ and local public health units.

Licenses shown in this directory come from: North Dakota Department of Environmental Quality / local health districts (451).

North Dakota septic licensing guide →

Other North Dakota listings

Septic companies and licensed professionals in areas without their own page yet. Listings in the counties and towns above are on those pages.

Burke County 3

  • Esterholm Construction

    PO Box 332, Powers Lake, ND 58773

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

    Per state license: Installation

    (701) 339-8258

  • Melby Construction

    Bowbells, ND

    • Licensed: North Dakota Licensed Septic Installer · #SC16-00018 (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 339-1150

  • United Grading and Paving

    Powers Lake, ND

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

    Per state license: Installation

    (701) 464-3642

Cavalier County 2

  • Mikkelsen Bros. Construction Co.

    PO Box 70, Langdon, ND 58249

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

    Per state license: Installation

    (701) 256-2202

  • Witzel Construction LLC

    206 9 th Ave E, Langdon, ND 58249

    • Licensed: North Dakota Licensed Septic Installer · #64 (North Dakota Department of Environmental Quality / local health districts, verify)
    • Licensed: North Dakota Licensed Septic Installer (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 256-2385

Dickey County 3

  • Dakota Improvement

    8698 Hwy 1, Oakes, ND 58474

    • Licensed: North Dakota Licensed Septic Installer · #SI 44 (North Dakota Department of Environmental Quality / local health districts, verify)
    • Licensed: North Dakota Licensed Septic Installer (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 742-3226

  • Maple River Colony

    9262 93rd Ave SE, Fullerton, ND 58441

    • Licensed: North Dakota Licensed Septic Installer · #SI 53 (North Dakota Department of Environmental Quality / local health districts, verify)
    • Licensed: North Dakota Licensed Septic Installer (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 408-9033

  • Rapid Response Plumbing

    309 2nd St, Monango, ND 58436

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

    Per state license: Installation

    (320) 634-3608

Divide County 2

  • Lund Construction

    210 3rd Ave SW, Crosby, ND 58730

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

    Per state license: Installation

    (701) 965-6169

  • Pete's Gravel, Inc.

    11570 100th St. NW, Crosby, ND 58730

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

    Per state license: Installation

    (630) 212-6429

Eddy County 1

  • NCZ Express

    2053 Highway 281, New Rockford, ND 58356

    • Licensed: North Dakota Licensed Septic Installer (North Dakota Department of Environmental Quality / local health districts, verify)
    • Licensed: North Dakota Licensed Septic Installer · #220 (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 947-2511

Emmons County 2

  • K & H Electric, Inc.

    243 St. Paul Ave., Linton, ND 58552

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

    Per state license: Installation

    (701) 254-4689

  • Magrum Excavating & Plumbing Co.

    PO Box 467, Hazelton, ND 58544

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

    Per state license: Installation

    (701) 321-5736

Golden Valley County 2

  • Bill Cassady Enterprises

    120 Martin St., Sentinel Butte, ND 58654

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

    Per state license: Installation

    (701) 300-3464

  • J&L Ditching

    16391 25th Street SW, Beach, ND 58621

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

    Per state license: Installation

    (701) 872-4071

Grand Forks County 3

  • Bohlman Trenching Services

    1372 7th Ave NE, Thompson, ND 58278

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

    Per state license: Installation

    (701) 599-2360

  • Dub Construction

    PO Box 154, Manvel, ND 58256

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

    Per state license: Installation

    (701) 739-2192 dubconstruction.com

  • Strata Corporation

    Grand Forks, ND

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

    Per state license: Installation

    (701) 746-7491

Grant County 2

  • Integrity Enterprises, LLC

    PO Box 95, Elgin, ND 58533

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

    Per state license: Installation

    (701) 219-5595

  • Tietz Hardware

    New Leipzig, ND

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

    Per state license: Installation

    (701) 928-0197

Hettinger County 1

  • Hanson Plumbing and Heating

    11725 Highway 21 West, New England, ND 58647

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

    Per state license: Installation

    (701) 579-4163

LaMoure County 2

  • Hample Excavation

    424 S Main, LaMoure, ND 58458

    • Licensed: North Dakota Licensed Septic Installer · #SI 20 (North Dakota Department of Environmental Quality / local health districts, verify)
    • Licensed: North Dakota Licensed Septic Installer (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 883-5263

  • Steffes Excavtion and Trucking

    610 5th Ave, Edgely, ND 58433

    • Licensed: North Dakota Licensed Septic Installer (North Dakota Department of Environmental Quality / local health districts, verify)
    • Licensed: North Dakota Licensed Septic Installer · #SI 36 (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 320-7843

McIntosh County 2

  • AW Excavating

    Wishek, ND

    • Licensed: North Dakota Licensed Septic Installer · #SI 47 (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 325-0365

  • Erichs Excavating

    Ashley, ND

    • Licensed: North Dakota Licensed Septic Installer · #SI 10 (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 851-0339

Nelson County 2

  • Heck Trucking and Construction

    Pekin, ND

    • Licensed: North Dakota Licensed Septic Installer · #230 (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 322-4444

  • Tolna Plumbing & Htng, LLC

    200 N Main St, Tolna, ND 58380

    • Licensed: North Dakota Licensed Septic Installer (North Dakota Department of Environmental Quality / local health districts, verify)
    • Licensed: North Dakota Licensed Septic Installer · #233 (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 262-4523

Oliver County 1

Pembina County 4

  • Adam Thacker

    10267 140th Ave NE, Neche, ND 58265

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

    Per state license: Installation

    (701) 521-0687

  • Austfjord Back & Supply

    Cavalier, ND

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

    Per state license: Installation

    (701) 265-8679

  • Mike Austfjord & Sons Inc

    Po Box 309, Cavalier, ND 58220

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

    Per state license: Installation

    (701) 265-4255

  • Thorlakson Construction Abe's Excavating

    13925 95th St NE 8629 Highway 2, Cavalier Devils Lake, ND 58220

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

    Per state license: Installation

    (701) 265-2092

Pierce County 2

  • B & J Excavating

    2951 66th St NE, Rugby, ND 58368

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

    Per state license: Installation

    (701) 208-0184 bjexcavatinginc.com

  • B & J Excavating Inc.

    Rugby, ND

    • Licensed: North Dakota Licensed Septic Installer · #95 (North Dakota Department of Environmental Quality / local health districts, verify)

    Per state license: Installation

    (701) 776-6256

Ransom County 1

  • B & E Excavating & Homes LLC

    5510 137th Ave. SE, Enderlin, ND 58027

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

    Per state license: Installation

    (701) 793-3202

Richland County 3

  • Bellmore & Sons

    17992 79 1/2 St SE, Wahpeton, ND 58075

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

    Per state license: Installation

    (701) 642-8689

  • Infinite Edge LLC

    PO Box 159, Hankinson, ND 58041

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

    Per state license: Installation

    (701) 640-2326

  • Reiland Bros Plumbing, LLC

    PO Box 5, Colfax, ND 58018

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

    Per state license: Installation

    (701) 899-0286

Sheridan County 1

  • Alan Helm Contracting

    350 1st St SE, McClusky, ND 58463

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

    Per state license: Installation

    (701) 400-4291

Towner County 1

  • North Prairie Contracting LLC

    9110 53rd Ave, Perth, ND 58363

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

    Per state license: Installation

    (701) 278-2658

Traill County 4

  • Naastad Brothers, Inc.

    PO Box 206, Hatton, ND 58240

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

    Per state license: Installation

    (701) 543-3821 naastadbrothers.com

  • Ness Plumbing, Inc

    1416 135th Ave NE, Hatton, ND 58240

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

    Per state license: Installation

    (701) 788-2564

  • Precision Plumbing & Electric

    Mayville, ND

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

    Per state license: Installation

    (701) 788-8927

  • Sandbo Plumbing

    16 1st St SE, Hillsboro, ND 58045

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

    Per state license: Installation

    (701) 636-2375

Septic companies in North Dakota: common questions

How many licensed septic companies are in North Dakota?

The Septic Guide lists 393 septic companies and licensed septic professionals in North Dakota; 393 are matched to the North Dakota Department of Environmental Quality / local health districts license or certification lists (data as of October 2026).

Do septic contractors need a license in North Dakota?

Yes. North Dakota began licensing septic installers statewide under 2025 legislation (SB 2267); local public health units administer the program.

How do I check a septic license in North Dakota?

Search the contractor on the North Dakota DEQ and local public health units's lookup (https://deq.nd.gov/WQ/). Every license badge in this directory links to the agency's own lookup.