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Septic Registry

Licensed septic companies in Arnold, Missouri

1 business on Missouri’s septic licensing records gives an address in Arnold, along with 2 individually licensed professionals. Arnold is in Franklin County, which has 157 in total.

Individually licensed professionals in Arnold

Licensed professionals in Arnold
NameLicenceCityExpires
Robert MahoneyBasic InstallerNo. 38278ArnoldFebruary 28, 2028
Robert MahoneyAdvanced InstallerNo. 31079ArnoldAugust 31, 2028

More licensed companies elsewhere in Franklin County

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

Septic licensing in Arnold

How many licensed septic companies are there in Arnold?
1 business gives Arnold as their address on Missouri's septic licensing records, alongside 2 individually licensed professionals. That count is of businesses based in Arnold, not of everyone who will work there — a Missouri licence is valid across the state.
Do I have to use a company based in Arnold?
No. Licensing is statewide, so any licensed company can legally work in Arnold. Franklin County has 157 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 Arnold 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 Franklin County

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