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Baker County, Oregon

Licensed Septic Companies in Baker County, OR

10 septic companies serve Baker County, Oregon, and 10 of them hold a Oregon septic license or certification matched to the Oregon Department of Environmental Quality list (data as of October 2026).

10 septic companies in Baker County

Baker City 7

  • M & L Excavation

    17849 Deer Park Lp, Baker City, OR 97814

    • Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #706 (Oregon Department of Environmental Quality, verify)

    Per state license: Installation

    (541) 403-2851

  • McCulloch Excavation LLC

    2480 21st St., Baker City, OR 97814

    • Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #3388 (Oregon Department of Environmental Quality, verify)

    Per state license: Installation

    (541) 519-0907

  • Melo Excavation LLC

    15605 Wingville Ln, Baker City, OR 97814

    • Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #1098 (Oregon Department of Environmental Quality, verify)

    From their website: Installation

    (208) 899-7634 meloexcavationllc.com

  • Proper Mechanical LLC

    2785 2nd St, Baker City, OR 97814

    • Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #3978 (Oregon Department of Environmental Quality, verify)

    Per state license: Installation

    (541) 399-6054

  • Srec

    PO Box 177, Baker City, OR 97814

    • Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #1016 (Oregon Department of Environmental Quality, verify)
    • Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #282 (Oregon Department of Environmental Quality, verify)
    • Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #980 (Oregon Department of Environmental Quality, verify)

    Per state license: Installation

    (541) 523-5559

  • Srec

    PO Box 177, Baker City, OR 97814

    • Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #993 (Oregon Department of Environmental Quality, verify)

    Per state license: Installation

    (541) 805-5710

  • Wyatt Gustaveson Construction

    390 Fifth St, Baker City, OR 97814

    • Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #3763 (Oregon Department of Environmental Quality, verify)

    Per state license: Installation

    (541) 417-0844

Richland 2

  • Comco Construction

    PO Box 180, Richland, OR 97870

    • Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #497 (Oregon Department of Environmental Quality, verify)

    Per state license: Installation

    (541) 893-6111

  • Swan Contracting LLC

    44396 Eagle Creek Rd, Richland, OR 97870

    • Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #1231 (Oregon Department of Environmental Quality, verify)

    Per state license: Installation

    (541) 403-2475

Halfway 1

  • McGill Construction

    37495 Boulder Flat Lane, Halfway, OR 97834

    • Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #3769 (Oregon Department of Environmental Quality, verify)

    Per state license: Installation

    (509) 438-2294

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 Baker 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 Baker County: common questions

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

10 septic companies serve Baker County, Oregon, and 10 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 Baker County?

10 listings in Baker 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.