Licensed Septic Companies in Willamina, OR
7 septic companies serve Willamina, Oregon, and 7 of them hold a Oregon septic license or certification matched to the Oregon Department of Environmental Quality list (data as of October 2026).
7 septic companies in Willamina
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Bishop & Son Excavating LLC
8335 Rowell Creek Rd, Willamina, OR 97396 · Yamhill County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #3405 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
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Bowers Land Works
PO Box 481, Willamina, OR 97396 · Yamhill County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #856 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
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Country Wide Electric and Construction
PO Box 902, Willamina, OR 97396 · Yamhill County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #3970 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
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High Heaven Timberlands Inc.
8540 Fort Hill Rd., Willamina, OR 97396 · Yamhill County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #3627 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
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M & M Excavation LLC
PO Box 811, Willamina, OR 97396 · Yamhill County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #3541 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
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NW Woods Septic Service, LLC
313 NW Pacific Hills Dr., Willamina, OR 97396 · Yamhill County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #1069 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
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Stackhouse Logging Inc
PO Box 264, Willamina, OR 97396 · Yamhill County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #3421 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
No listings match those filters.
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 Willamina and whether the permit fee is in their quote.
Oregon septic licensing: agencies, license types and how to check a license →
Septic companies in Willamina: common questions
How many licensed septic companies are in Willamina, OR?
7 septic companies serve Willamina, Oregon, and 7 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 Willamina?
7 listings in Willamina 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.