Sean Harman’s Tree Care provides professional arboricultural services in Alexandria and Fort Hunt, Virginia. Owner Sean Harman is an ISA Certified Arborist (MA-6197A) and Professional Member of the International Society of Arboriculture, specializing in tree evaluation, structural assessment, and site-specific management of mature trees in residential settings.
We specialize in risk-based tree assessments, tree-on-structure removals, and insurance-related storm response, this includes crane-assisted removal of large, high-risk trees when size, location, or structural conditions make climbing or conventional dismantling unsafe. For large or high-risk trees near homes, allows safe dismantling without property damage. with all work led by an ISA Certified Arborist. In addition to extensive field experience, professional judgment is informed by ongoing professional mentorship and consultation within the urban forestry and arboriculture research community.
Case studies documenting site conditions, observations, and outcomes are provided to illustrate risk-based decision-making in real residential settings.
Work is guided by current arboricultural standards and direct field observations, with recommendations developed to support informed decisions regarding pruning, mitigation, monitoring, or removal. Documentation and recommendations are suitable for homeowner decision-making and insurance coordination.
Root health and soil restoration services are also available for mature trees exhibiting decline, stress, poor growth, buried root flares, or restricted rooting environments. Services include AirSpade® root collar excavation, root flare exposure, girdling root investigation, radial trenching, vertical mulching, soil decompaction, and customized soil amendment programs designed to improve root function and long-term tree performance. Through our Root Revival™ process, we focus on correcting root-zone issues that are often overlooked but can significantly affect tree health, stability, and longevity.
Sean Harman is also the founder of School of Trees, an arborist education platform focused on professional climbing systems, pruning mechanics, and applied arboricultural practice.