Licensed Septic Companies in Klamath Falls, OR
21 septic companies serve Klamath Falls, Oregon, and 21 of them hold a Oregon septic license or certification matched to the Oregon Department of Environmental Quality list (data as of October 2026).
Septic services in Klamath Falls
Guides: Septic tank pumping · Septic system installation · Septic inspection · Drain field repair · Installation cost · Pumping cost
21 septic companies in Klamath Falls
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Alec Mozingo
4847 Shasta Way, Klamath Falls, OR 97603 · Klamath County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #4066 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
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American Sanitation Inc
7246 Airway Dr., Klamath Falls, OR 97603 · Klamath County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #868 (Oregon Department of Environmental Quality, verify)
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #1089 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
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American Sanitation, Inc.
7246 Airway, Klamath Falls, OR 97603 · Klamath County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #3644 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
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American Sanitation, Inc.
1246 Airway Dr., Klamath Falls, OR 97603 · Klamath County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #1044 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
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Andrews Building LLC
5826 Mason Lane, Klamath Falls, OR 97601 · Klamath County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #3727 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
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Bear Valley Construction, LLC
12550 Hwy 66, Klamath Falls, OR 97601 · Klamath County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #1088 (Oregon Department of Environmental Quality, verify)
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #4017 (Oregon Department of Environmental Quality, verify)
From their website: Pumping · Installation · Inspection
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Elite Excavation
1830 Old Fort Rd, Klamath Falls, OR 97601 · Klamath County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #1142 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
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H&H Northwest Innovations LLC
6920 Airway Drive, Klamath Falls, OR 97603 · Klamath County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #4010 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
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High Desert Company
950 Del Fatti Ln, Klamath Falls, OR 97603 · Klamath County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #437 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
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J&K Deese Excavation LLC
700 Main St Ste. 204A, Klamath Falls, OR 97601 · Klamath County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #523 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
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Jesus Zambrano
2336 Wantland Ave, Klamath Falls, OR 97601 · Klamath County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #3467 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
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Legion Contracting & Excavation LLC
1292 Lynnewood Blvd, Klamath Falls, OR 97601 · Klamath County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #3431 (Oregon Department of Environmental Quality, verify)
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #3527 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
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LT Excavating Inc
1719 Winona Way, Klamath Falls, OR 97603 · Klamath County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #1193 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
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McBride Excavating Inc.
4202 Fargo St., Klamath Falls, OR 97603 · Klamath County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #4049 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
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Modoc Services, Inc
11030 Hwy 39, Klamath Falls, OR 97603 · Klamath County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #749 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
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Morello Construction LLC
2637 Old Midland Rd, Klamath Falls, OR 97603 · Klamath County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #607 (Oregon Department of Environmental Quality, verify)
From their website: Installation · Drain field
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Moss Excavation Inc
6111 Reeder Rd, Klamath Falls, OR 97603 · Klamath County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #789 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
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Shakil Ross
1775 Washburn Way Suite B #156, Klamath Falls, OR 97603 · Klamath County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #3834 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
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Thielsen Construction
1852 Logan St, Klamath Falls, OR 97603 · Klamath County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #888 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
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WSH Enterprises, Inc
PO Box 7339, Klamath Falls, OR 97602 · Klamath County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #669 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
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Wynne Excavation LLC
6416 Onyx Ave., Klamath Falls, OR 97603 · Klamath County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #3953 (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 Klamath Falls and whether the permit fee is in their quote.
Oregon septic licensing: agencies, license types and how to check a license →
Septic companies in Klamath Falls: common questions
How many licensed septic companies are in Klamath Falls, OR?
21 septic companies serve Klamath Falls, Oregon, and 21 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 pump septic tanks in Klamath Falls?
1 of the 21 listings in Klamath Falls offer septic tank pumping, either on their own website or under a state pumper license. Use the service filter above to show only those companies.
Which companies install septic systems in Klamath Falls?
21 listings in Klamath Falls 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.