Tree service has a dual exposure problem: height risk and cutting tool risk. When you combine tree trimming, chainsaws, and wood chippers with the physical demands of climbing, you get one of the most restricted—and highest-rated—classes in workers' compensation. Most admitted carriers in South Carolina have strict exclusions or limitations on this work, which makes placement extremely difficult for arborists and tree companies.
The risk profile of tree service work creates a perfect storm for insurance markets. Let's break down why.
Tree service combines two of the most hazardous exposures in the construction trades. Roofing has height exposure; carpenters use saws and power tools. But tree climbers do both—simultaneously, often at significant heights, often on unstable surfaces (trees), often in unpredictable weather, and often near obstacles and utilities.
This combination means loss ratios are unattractive to most carriers. The severity and frequency of claims—from minor cuts and fractures to catastrophic falls and amputation—place tree service in the highest-risk category of any skilled trade.
NCCI class code 0106 (Landscaping & Gardening — Tree Pruning, Trimming, Spraying) carries some of the highest manual rates in the entire NCCI manual. These rates reflect the true cost of claims in this classification. When an insurer wins a tree service account, they're gambling that their underwriting and loss control will beat the statistical average—a difficult bet for smaller carriers or those without specialized expertise in this class.
Compare this to general landscaping (code 9102), which is ground-level work only—much lower rates, much lower frequency and severity. The rating difference tells the story.
If your tree service company does stump grinding or stump removal, that may fall under a different code or rating system. Grinders present their own exposures—the operator is at risk from the rotating mechanism, dust inhalation, and repeated vibration injuries. Some markets will separate this work from climbing/trimming; others will roll it into one package. Either way, it's an additional underwriting factor that adds complexity.
Most standard admitted carriers in South Carolina impose a maximum height limit of 25 to 30 feet for tree trimming work. Work above that height is either declined or sent to the excess & surplus (E&S) market, where rates are much higher and coverage is more expensive. If your company regularly works on trees taller than 30 feet, you'll need specialized E&S placement—and that's a smaller, more expensive market.
Many tree service companies also respond to emergency cleanup after hurricanes, ice storms, and severe weather events. While this work can be lucrative, it's a major underwriting red flag. Emergency conditions mean hazards escalate—unstable trees, live power lines, debris fields, fatigue, and pressure to work quickly. If your application mentions emergency response work, most carriers will either exclude it, impose stricter limits, or decline the entire account. Some companies find that even disclosing that they could do storm cleanup is enough to trigger a declination.
Work near or around power lines requires separate underwriting and often requires proof of specialized training, certifications (such as OSHA 511 or ANSI A300 certification), and specific safety protocols. Some carriers will not underwrite this work at all. If your crew does utility line clearance, you'll need to disclose it clearly and be prepared for a specialized underwriting approach—or a declination.
Not all tree-related work is classified the same way. Understanding which code applies to your operation is critical for accurate rating and coverage.
Key Takeaway:
Most tree service companies use code 0106. If you're unsure which code applies to your operation, ask your agent or broker to verify with your carrier. A misclassification discovered at audit can result in thousands of dollars in back-premium and potential coverage gaps.
Misclassifications are discovered at audit and result in additional premium, coverage disputes, and headaches. Here are the most frequent mistakes we see.
This is the most common misclassification. An owner tries to save money by putting all crew under the cheaper ground-maintenance code, even though half the crew climbs trees. At audit, the auditor reviews payroll, worksite photos, or crew interviews and discovers the misclassification. Result: reclassification to 0106 (much higher rate), back-premium bill, and potential denial if coverage was questioned at the time of loss.
Prevention: Maintain separate payroll for climbers and ground crew. Code climbers under 0106, ground crew under 9102 if applicable.
Some brokers or agents suggest using carpentry code for tree work, especially if it's happening on a construction site or involves some finishing work. This is invalid if climbing is involved. It's a shortcut that fails at audit and can create coverage issues if a claim occurs before the misclassification is caught.
Prevention: Use 0106 for any work involving climbing or aerial equipment, regardless of the site type or ancillary tasks.
Even if you're using the correct codes, if payroll is all lumped together, the auditor can't verify that segregation is legitimate. This makes it harder to defend a lower-rate code for ground crew and invites additional scrutiny.
Prevention: Keep separate timekeeping or payroll records for climbers vs. ground crew. Document the distinction clearly so it's verifiable at audit.
From an underwriter's viewpoint, here's why tree service is one of the hardest-to-place classes in South Carolina.
Most carriers won't write work above 25–30 feet. If your company regularly works higher, you're limited to E&S markets with higher premiums. This is a hard constraint, not negotiable.
The combination of high frequency (lots of small claims) and high severity (occasional catastrophic injuries) makes loss ratios unprofitable for many carriers. They'd rather not compete for this business.
Mention storm cleanup or emergency response and many carriers will walk away. They view this as significantly higher risk due to hazardous conditions, fatigue, and pressure to work unsafely.
Owner-operated or 1–5 person crews with limited loss history have a harder time finding coverage. They don't qualify for large-account loss-sensitive programs, and they don't have a track record to offset the class's inherent risk.
If your experience modifier is above 1.00, you're paying extra. In a class like 0106, even small claims can push the mod up, and it can take years to come back down. This makes renewal difficult and expensive.
Every detail of your operation will be questioned: certifications, safety equipment, crew experience, equipment type, scope of work, prior loss history. Underwriters are conservative with this class.
These six items are the most common areas where tree service companies have gaps, misclassifications, or documentation issues.
Not 9102, not 5645, not any other code. Every employee who climbs trees should be classified under NCCI code 0106 (Landscaping & Gardening — Tree Pruning, Trimming, Spraying).
Keep separate timekeeping or payroll records showing which employees are climbers and which are ground crew. This is critical for audit defense and rate justification.
If you use subcontract crews, you need Certificates of Insurance. This protects you if a sub is injured and tries to claim they were your employee. It also shows underwriters you're managing risk carefully.
Specify: residential trimming, commercial tree service, bucket truck work, spaying/treatment, stump grinding, etc. Be honest about whether you do storm/emergency work or utility clearance. Honesty here is better than discovering gaps later.
Know your current mod. If it's above 1.00, you're paying extra. If you believe it's inaccurate, dispute it. If it's unfavorable, ask your broker about loss control programs to help bring it down.
If you're an owner who climbs trees, make sure your policy reflects this. Some policies exclude owners from coverage; others include them. Verify what you actually have versus what you think you have.
Tree service isn't the only specialized class. Explore coverage challenges for other trades.
Multi-trade operations, coordination challenges, and how to manage mixed-payroll complexity.
Learn more →Height exposure, seasonal volatility, and why roofing is one of the most expensive classes.
Learn more →Payroll audits, employee classification, and why staffing requires specialized underwriting.
Learn more →When RapidSync Specialty launches, we'll be offering specialized workers' compensation guidance for SC tree service companies. Pre-register today to be among the first to access our placement support and industry expertise.
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