St. Charles County master plumber bonds.
$100 flat.
St. Charles County requires every licensed master plumber to carry a $10,000 bond as a condition of the county plumbing license — ours is $100 flat, set by our carrier's rate book for this bond. Apply in the name of the individual getting the license; The bond issues the moment you pay — no credit review of any kind, not even a soft pull.
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Three steps. One sitting.
License bonds are the simplest thing in surety. Here's the entire process:
Apply online
The individual plumber's details and an effective date. That's the application — no financials, no credit section.
Pay & e-sign
License bonds like this are among the thousands of bond types that issue right after purchase. At most, 1–2 business days.
File with St. Charles County
Your executed bond and power of attorney arrive by email, ready to file with the county's plumbing license application or renewal. Wet-ink original mailed on request.
What it is and who needs it.
What the bond actually guarantees
St. Charles County licenses master plumbers and conditions that license on a $10,000 surety bond. The bond is a code-and-public-protection guarantee: it stands behind your compliance with the county plumbing code and the conditions of your license.
It's a three-party arrangement: you, the licensed plumber (the principal), the surety carrier standing behind you, and St. Charles County (the obligee). If a plumber violates the county code or the license terms and the county or a harmed party suffers a loss, they can recover against the bond.
It is not insurance for you — if the surety pays a claim, you repay the surety. The bond is filed in the name of the individual applying for the license, and it must stay active for as long as you hold the license.
You need this bond if you're
One application, issued instantly.
These are the actual issuing fields — no credit section, because this bond doesn't have one. Enter the application in the individual plumber's name.
Start the application →Common questions.
Other Missouri bonds.
Finish your county license checklist today.
$100 flat, no credit review, bond often issued in the same sitting. Free until issued.