St. Louis County master sprinklerfitter bonds.
$150 flat.
St. Louis County licenses master sprinklerfitters through the Department of Public Works and conditions the license on a $25,000 bond. Ours is $150 flat — the price you see is the checkout price, identical for every licensee.
Trusted by industry leaders
Three steps to licensed.
Your county license is waiting on this bond. Here's the entire process — no broker phone tag:
Apply once, online
Business details, owner information, effective date.
Reviewed & approved
Most of these clear quickly; if underwriting needs anything, you hear from an underwriter within 48 hours.
File with Public Works
Pay online and receive the executed bond ready to file with the St. Louis County Department of Public Works plumbing-code licensing office. Wet-ink originals mailed whenever the county insists.
What it is and who needs it.
What the bond actually guarantees
St. Louis County licenses plumbing-trade contractors — including master sprinklerfitters, who install fire-suppression and lawn-sprinkler piping — through the Department of Public Works, and conditions the license on a $25,000 surety bond. The bond stands behind your compliance with the county plumbing code and the work you perform under the license.
It's a three-party arrangement: you (the principal), the surety carrier, and St. Louis County (the obligee). The bond indemnifies St. Louis County, Missouri — or any other governmental agency — for damages or injury sustained through the negligence or malfeasance of the principal, and backs the timely payment of fees and fines assessed by the county.
It is not insurance for you — if the surety pays a county claim, you repay the surety. Sprinklerfitters who follow the plumbing code and pay their fees on time treat the bond as a license formality.
You need this bond if you're
One application, issued instantly.
These are the actual underwriting fields. Submit once and your bond is typically issued within 1–2 business days.
Start the application →Common questions.
Other Missouri bonds.
Public Works is waiting on one document.
$150 flat, no credit review, e-signed bond in 1–2 business days. Free until issued.