Licensed Septic Companies in Ada, OK
5 septic companies serve Ada, 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 Ada
Guides: Septic system installation · Aerobic septic systems · Installation cost · Pumping cost
5 septic companies in Ada
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L&L Plumbing
17657 Cr 1528, Ada, OK 74820 · Hughes County
- Licensed: Oklahoma DEQ Certified Septic Installer (Aerobic Spray) · #1328 (Oklahoma Department of Environmental Quality, verify)
Per state license: Installation · Aerobic systems
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Lawrence Dozer Service
626 Sunset Rd, Ada, OK 74820 · Pontotoc County
- Licensed: Oklahoma DEQ Certified Septic Installer (Subsurface, Lagoon, Aerobic Spray, Aerobic Drip) · #628 (Oklahoma Department of Environmental Quality, verify)
Per state license: Installation · Aerobic systems
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SMC Construction
18445 Cr 1548, Ada, OK 74820 · Pontotoc County
- Licensed: Oklahoma DEQ Certified Septic Installer (Subsurface, Lagoon, Aerobic Spray) · #550 (Oklahoma Department of Environmental Quality, verify)
Per state license: Installation · Aerobic systems
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Smith Backhoe Service
18515 Cr 3564, Ada, OK 74820 · Pontotoc County
- Licensed: Oklahoma DEQ Certified Septic Installer (Subsurface, Aerobic Spray) · #633 (Oklahoma Department of Environmental Quality, verify)
Per state license: Installation · Aerobic systems
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Southern Environmental Septic & Storm Shelters
19792 Cr 1535, Ada, OK 74820 · Pontotoc County
- Licensed: Oklahoma DEQ Certified Septic Installer (Subsurface, Aerobic Spray) · #885 (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 Ada and whether the permit fee is in their quote.
Oklahoma septic licensing: agencies, license types and how to check a license →
Septic companies in Ada: common questions
How many licensed septic companies are in Ada, OK?
5 septic companies serve Ada, 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 install septic systems in Ada?
5 listings in Ada 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.