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Septic Registry

Licensed septic companies in St. Thomas, Missouri

1 business on Missouri’s septic licensing records gives an address in St. Thomas, along with 2 individually licensed professionals. St. Thomas is in Boone County, which has 153 in total.

Individually licensed professionals in St. Thomas

Licensed professionals in St. Thomas
NameLicenceCityExpires
Forrest MonatAdvanced InstallerNo. 37785St. ThomasJanuary 31, 2028
Matthew SloanAdvanced InstallerNo. 36109St. ThomasSeptember 30, 2027

More licensed companies elsewhere in Boone County

A Missouri licence is valid statewide. These are based in the same county but a different town, and can legally work in St. Thomas.

Septic licensing in St. Thomas

How many licensed septic companies are there in St. Thomas?
1 business gives St. Thomas as their address on Missouri's septic licensing records, alongside 2 individually licensed professionals. That count is of businesses based in St. Thomas, not of everyone who will work there — a Missouri licence is valid across the state.
Do I have to use a company based in St. Thomas?
No. Licensing is statewide, so any licensed company can legally work in St. Thomas. Boone County has 153 in total, and companies in neighbouring counties can travel too. Being local usually matters for call-out speed and price, not permission.
How do I check a St. Thomas septic company is really licensed?
Every listing here names the record it came from and the date that record was published. To confirm it is still current, check with Missouri DHSS, or the state's own published registration data.

Other towns in Boone County

Records as published August 26, 2026. Report a correction.