St. Louis County licenses master water heater replacement specialists 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.
















Your county license is waiting on this bond. Here's the entire process — no broker phone tag:
Business details, owner information, effective date.
Most of these clear quickly; if underwriting needs anything, you hear from an underwriter within 48 hours.
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.
St. Louis County licenses plumbing-trade contractors — including master water heater replacement specialists, a limited-scope plumbing license for swapping water heaters — 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. Specialists who follow the plumbing code and pay their fees on time treat the bond as a license formality.
These are the actual underwriting fields. Submit once and your bond is typically issued within 1–2 business days.
Start the application →$150 flat, no credit review, e-signed bond in 1–2 business days. Free until issued.