Seattle Contractor Bond — It's the State L&I Bond

Here is the part that trips up contractors new to Seattle: there is no City of Seattle equivalent of the L&I license bond for ordinary construction. The City does not re-bond your general competence the way a CSLB-style state would, and it does not run a parallel city registration-bond program. Your Washington L&I registration bond ($30,000 general / $15,000 specialty) is the bond that legally lets you register and work anywhere in the state, Seattle included. What Seattle adds are scope-triggered bonds: post one only when you take on work that touches the City's own infrastructure.

The two recurring city add-ons are the side-sewer contractor bond (securing work that connects to the public sewer) and the street-use / right-of-way bond (securing work in a street, sidewalk, alley, or pavement). Neither replaces your L&I bond — they sit on top of it, and only for the specific permit or registration that triggers them. Exact dollar amounts for these city bonds vary and are administered by different departments, so confirm the current figure and bond form with the responsible department before you bid that scope.

When someone calls us asking for a “Seattle contractor bond,” the first thing we do is confirm what they are actually buying — because nine times out of ten it is the statewide L&I registration bond, not a city bond. The location word in the search is geography, not a different product. The contractor in Ballard and the contractor in Bellingham fill out the same bond, because Washington licenses at the state level. The few callers who do need a Seattle-only bond already know it, because a side-sewer or right-of-way permit forced the question.

The July 1, 2024 increase from $12,000/$6,000 to $30,000/$15,000 is the single biggest recent change to this bond, and it does two things to the quote. First, it more than doubles the penal sum the surety is on the hook for, which means credit matters more than it used to: on the old $12,000 general bond, marginal credit barely moved the premium because the exposure was small; on the new $30,000 bond, a thin or bruised credit file shows up as a real dollar difference. Second, it is a freshness flag — a contractor renewing on an old bond form or quoting from a pre-2024 rate sheet is working from stale numbers. The fixed-dollar nature of the bond hasn't changed (the amount tracks your registration class, not your project value), but the math behind the premium has. If a quote you are comparing still references $12,000 or $6,000, it predates the current law.