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Missouri

Licensed Septic Companies in Missouri

The Septic Guide lists 29 septic companies and licensed septic professionals in Missouri (data as of October 2026).

29listed in Missouri
0matched to a state license or certification
29with a phone number
3county and town pages

Septic companies by county

Septic services in Missouri

Counts of Missouri listings by service, from each business's own website or the type of state license it holds.

  • 15 septic tank pumping · guide
  • 9 septic system installation · guide
  • 16 septic inspection · guide
  • 13 septic repair · guide
  • 9 drain field repair · guide
  • 3 aerobic septic systems · guide
  • 5 risers and lids
  • 4 perc testing and site evaluation
  • 10 grease trap pumping

Who licenses septic work in Missouri?

Missouri registers onsite system installers; no public download of the registry was found.

Credentials: Registered basic installer; Registered advanced installer.

Agency: Missouri DHSS Onsite Wastewater Treatment program.

Missouri septic licensing guide →

Other Missouri listings

Septic companies and licensed professionals in areas without their own page yet. Listings in the counties and towns above are on those pages.

Cass County 2

Christian County 1

Dade County 1

Franklin County 3

Gasconade County 1

Jefferson County 1

Laclede County 1

St. Charles County 1

Septic companies in Missouri: common questions

How many licensed septic companies are in Missouri?

The Septic Guide lists 29 septic companies and licensed septic professionals in Missouri (data as of October 2026).

Do septic contractors need a license in Missouri?

Yes. Missouri registers onsite system installers; no public download of the registry was found.

How do I check a septic license in Missouri?

Missouri has no public statewide list. Missouri registers onsite system installers; no public download of the registry was found.