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Septic Registry

Licensed septic companies in Grain Valley, Missouri

4 businesses on Missouri’s septic licensing records give an address in Grain Valley, along with 5 individually licensed professionals. Grain Valley is in Cass County, which has 139 in total.

4 registered owts installers1 registered onsite soil evaluators

Individually licensed professionals in Grain Valley

Licensed professionals in Grain Valley
NameLicenceCityExpires
Andrea KatamuraBasic InstallerNo. 39192Grain ValleyJuly 31, 2027
Andrea KatamuraOnsite Soil EvaluatorNo. 51441Grain ValleyFebruary 29, 2028
Brent MorrowAdvanced InstallerNo. 31032Grain ValleyAugust 31, 2026
Matthew ChaseBasic InstallerNo. 38652Grain ValleyMarch 31, 2026
Michael WilcoxAdvanced InstallerNo. 33565Grain ValleyApril 30, 2026

More licensed companies elsewhere in Cass County

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

Septic licensing in Grain Valley

How many licensed septic companies are there in Grain Valley?
4 businesses give Grain Valley as their address on Missouri's septic licensing records, alongside 5 individually licensed professionals. That count is of businesses based in Grain Valley, not of everyone who will work there — a Missouri licence is valid across the state.
Do I have to use a company based in Grain Valley?
No. Licensing is statewide, so any licensed company can legally work in Grain Valley. Cass County has 139 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 Grain Valley 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 Cass County

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