Licensed Septic Companies in Portland, OR
20 septic companies serve Portland, Oregon, and 13 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 Portland
Guides: Septic tank pumping · Septic system installation · Septic inspection · Septic repair · Drain field repair · Aerobic septic systems · Installation cost · Pumping cost
20 septic companies in Portland
-
Danielson Contractors Inc
5106 SE 99th Ave, Portland, OR 97266 · Multnomah County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #969 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
-
Golden Eagle Excavator, LLC
17007 SE Stephens St, Portland, OR 97233 · Multnomah County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #950 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
-
Iron River Washrooms LLC
15100 NE Glisan St, Portland, OR 97230 · Multnomah County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #3988 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
-
Kenneth Hick
PO Box 16756, Portland, OR 97292 · Multnomah County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #1074 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
-
NW Excavation & Construction
16731 NE Wasco St., Portland, OR 97230 · Multnomah County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #3452 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
-
PLUUM Construction
8449 SW Barbur Blvd, Portland, OR 97219 · Multnomah County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #3966 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
-
River City Environmental
5410 NE 109th Ave, Portland, OR 97294 · Multnomah County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #1203 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
-
River City Environmental
PO Box 30087, Portland, OR 97294 · Multnomah County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #3470 (Oregon Department of Environmental Quality, verify)
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #3468 (Oregon Department of Environmental Quality, verify)
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #3472 (Oregon Department of Environmental Quality, verify)
- +2 more credentials
Per state license: Installation
-
River City Environmental
PO Box 30087, Portland, OR 97294 · Multnomah County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #4022 (Oregon Department of Environmental Quality, verify)
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #3968 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
-
River City Environmental
PO Box 30087, Portland, OR 97294 · Multnomah County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #1190 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
-
Superior Underground LLC
PO Box 20097, Portland, OR 97294 · Multnomah County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #4002 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
-
Twin Peaks Construction Inc
12119 SE Henderson Dr, Portland, OR 97266 · Multnomah County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #3701 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
-
Wolf Dog Construction LLC
12950 SE Powell Blvd, Portland, OR 97236 · Multnomah County
- Licensed: Oregon DEQ Certified Onsite (Septic) Installer · #731 (Oregon Department of Environmental Quality, verify)
Per state license: Installation
-
A Advanced Pumping
5410 NE 109th Ave #440, Portland, OR 97220 · Multnomah County
From their website: Pumping · Installation · Inspection · Drain field · Perc testing
-
EMS - Environmental Consultants
4080 SE International Way b112, Portland, OR 97222 · Clackamas County
From their website: Repair · Drain field
-
PDX Sewer Solutions
7886 SW Oak St, Portland, OR 97223 · Washington County
From their website: Repair
-
Proline Plumbing
8023 SE Martins Ct St, Portland, OR 97206 · Multnomah County
From their website: Pumping · Installation · Inspection · Repair · Drain field · Risers & lids
-
River City Environmental
5410 NE 109th Ave, Portland, OR 97220 · Multnomah County
From their website: Pumping · Installation · Repair · Drain field · Aerobic systems · Risers & lids · Perc testing · Grease traps
-
Septic Services in Portland
Public Service Building, 920 SW 6th Ave, Portland, OR 97204 · Multnomah County
From their website: Pumping · Installation · Repair
-
Superior Underground
6400 SE 101st Ave Unit 3, Portland, OR 97266 · Multnomah County
From their website: Installation · Inspection · Repair
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 Portland and whether the permit fee is in their quote.
Oregon septic licensing: agencies, license types and how to check a license →
Septic companies in Portland: common questions
How many licensed septic companies are in Portland, OR?
20 septic companies serve Portland, Oregon, and 13 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 Portland?
4 of the 20 listings in Portland 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 Portland?
18 listings in Portland 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.