Subcontractor Default Insurance

Subcontractor default insurance (SDI) is a specialized product most commonly used by large general contractors, but it has direct relevance for tree service companies that subcontract work to other crews. If you hire a subcontractor to handle stump grinding or brush clearing on a large land-clearing project, and they walk off the job or perform defective work, SDI covers your cost to hire a replacement and fix any problems.

For tree service companies, subcontractor risk is real and often underestimated. You may sub out specialized work — crane-assisted removals, deep root fertilization, or herbicide application — to other contractors. If a sub damages a client's property, the client comes after you first because you hold the primary contract. If the sub does not carry adequate insurance (or any insurance at all), you bear the financial burden.

SDI differs from simply requiring your subcontractors to carry their own insurance. Even if a sub has GL coverage, there are scenarios where their policy might not respond — a policy lapse, an exclusion that applies, or limits too low to cover the damage. SDI provides a backstop for your own financial exposure when the sub's coverage falls short or fails entirely.

Most small to mid-sized tree service companies do not purchase SDI because it is designed for larger operations with significant subcontractor spend. However, as your company grows and you rely more heavily on subcontractors, especially for high-risk activities, it becomes worth evaluating. In the meantime, the minimum protection is a rigorous subcontractor vetting process: require COIs, verify coverage is active, mandate adequate limits, and include indemnification clauses in your sub agreements.