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Wallowa County, Oregon

Licensed Septic Companies in Wallowa County, OR

6 septic companies serve Wallowa County, Oregon, and 6 of them hold a Oregon septic license or certification matched to the Oregon Department of Environmental Quality list (data as of October 2026).

6 septic companies in Wallowa County

Joseph 3

  • Cunningham Construction Inc

    PO Box 7, Joseph, OR 97846

    • Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #602 (Oregon Department of Environmental Quality, verify)

    Per state license: Installation

    (503) 519-0717

  • Gibson Excavating, Inc

    63716 Woodland Ln, Joseph, OR 97846

    • Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #265 (Oregon Department of Environmental Quality, verify)

    Per state license: Installation

    (541) 263-0395

  • Joseph Excavating

    62871 Wallowa Lake Hwy, Joseph, OR 97846

    • Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #403 (Oregon Department of Environmental Quality, verify)

    Per state license: Installation

    (541) 263-1800 wallowacountyrockproducts.com

Enterprise 1

  • Krening Excavation LLC

    PO Box 98, Enterprise, OR 97828

    • Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #4096 (Oregon Department of Environmental Quality, verify)

    Per state license: Installation

    (503) 708-2731

Lostine 1

  • Lostine River Corp, DBA Jones Excavating

    PO Box 135, Lostine, OR 97857

    • Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #200 (Oregon Department of Environmental Quality, verify)

    Per state license: Installation

    (541) 569-2324

Wallowa 1

  • Hafer & Sons Construction LLC

    504 West 4th St., Wallowa, OR 97885

    • Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #1189 (Oregon Department of Environmental Quality, verify)

    Per state license: Installation

    (541) 398-2248

Septic licensing in Oregon

Oregon licenses sewage disposal businesses and certifies the installers who work for them. The Oregon DEQ, Sewage Disposal Service licensing issues these credentials: Sewage disposal service license (installer, pumper); DEQ installer certification.

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

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

Septic companies in Wallowa County: common questions

How many licensed septic companies are in Wallowa County, OR?

6 septic companies serve Wallowa County, Oregon, and 6 of them hold a Oregon septic license or certification matched to the Oregon Department of Environmental Quality 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 Oregon?

Oregon licenses sewage disposal businesses and certifies the installers who work for them. The licensing body is the Oregon DEQ, Sewage Disposal Service licensing.

Which companies install septic systems in Wallowa County?

6 listings in Wallowa County install septic systems. New systems and replacements need a permit, so ask each installer to handle the permit and to show their Oregon license.

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

Use the Oregon DEQ, Sewage Disposal Service licensing's lookup (https://www.oregon.gov/deq/permits/Pages/YDO-Public-Records.aspx) and search the contractor's name or license number. Our guide to checking a septic license walks through it.