Licensed Septic Companies in Marshall County, OK
5 septic companies serve Marshall County, Oklahoma, and 5 of them hold a Oklahoma septic license or certification matched to the Oklahoma Department of Environmental Quality list (data as of October 2026).
Septic services in Marshall County
Guides: Septic tank pumping · Septic system installation · Septic repair · Drain field repair · Aerobic septic systems · Installation cost · Pumping cost
5 septic companies in Marshall County
Kingston 3
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Grotts Landscaping
9895 Texoma Park Rd, Kingston, OK 73439
- Licensed: Oklahoma DEQ Certified Septic Installer (Subsurface, Aerobic Spray) · #411 (Oklahoma Department of Environmental Quality, verify)
Per state license: Installation · Aerobic systems
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Monroes Construction
6002 Enos Rd, Kingston, OK 73439
- Licensed: Oklahoma DEQ Certified Septic Installer (Subsurface, Aerobic Spray) · #1036 (Oklahoma Department of Environmental Quality, verify)
Per state license: Installation · Aerobic systems
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Standard Construction and Environmental
11097 Hwy 70, Kingston, OK 73439
- Licensed: Oklahoma DEQ Certified Septic Installer (Subsurface, Lagoon, Aerobic Spray) · #802 (Oklahoma Department of Environmental Quality, verify)
From their website: Pumping · Installation · Repair · Drain field · Aerobic systems · Perc testing
Madill 2
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Hale Excavating
PO Box 146, Madill, OK 73446
- Licensed: Oklahoma DEQ Certified Septic Installer (Subsurface, Lagoon) · #185 (Oklahoma Department of Environmental Quality, verify)
Per state license: Installation
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Hale Septic
21635 Adams Rd, Madill, OK 73446
- Licensed: Oklahoma DEQ Certified Septic Installer (Aerobic Spray) · #1081 (Oklahoma Department of Environmental Quality, verify)
Per state license: Installation · Aerobic systems
No listings match those filters.
Septic licensing in Oklahoma
Oklahoma certifies septic installers by system type: subsurface, lagoon, aerobic spray and aerobic drip. The Oklahoma DEQ, Environmental Complaints and Local Services issues these credentials: Certified installer (subsurface, lagoon, aerobic spray, aerobic drip).
Permits for new systems, replacements and most repairs are issued locally. Ask the contractor which office handles Marshall County and whether the permit fee is in their quote.
Oklahoma septic licensing: agencies, license types and how to check a license →
Septic companies in Marshall County: common questions
How many licensed septic companies are in Marshall County, OK?
5 septic companies serve Marshall County, Oklahoma, and 5 of them hold a Oklahoma septic license or certification matched to the Oklahoma 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 Oklahoma?
Oklahoma certifies septic installers by system type: subsurface, lagoon, aerobic spray and aerobic drip. The licensing body is the Oklahoma DEQ, Environmental Complaints and Local Services.
Which companies pump septic tanks in Marshall County?
1 of the 5 listings in Marshall County 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 Marshall County?
5 listings in Marshall County install septic systems. New systems and replacements need a permit, so ask each installer to handle the permit and to show their Oklahoma license.
How do I check a septic contractor's license in Oklahoma?
Use the Oklahoma DEQ, Environmental Complaints and Local Services's lookup (https://applications.deq.ok.gov/certinstallers/certinstallers.aspx) and search the contractor's name or license number. Our guide to checking a septic license walks through it.