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By rpdesign | 6:40 AM UTC, Fri June 12, 2026

Lee Gilman & Associates focuses on providing independent arboricultural consulting, diagnostics, tree risk assessment, forensic investigations, and litigation support, and expert support services. Our previous field operations implementing Tree & Plant Health Care services — including pruning, removals, and plant health care treatments — have now been acquired by our longtime associate Bartlett Tree Experts office in Hooksett, NH. Together, we remain committed to delivering knowledgeable guidance and high-quality tree care for our clients.


Welcome

Lee Gilman & Associates, LLC develops interdisciplinary programs to improve the health, performance, and longevity of woody landscape plants. We consult with owners, planners, designers, contractors, attorneys, and insurance companies. Our comprehensive approach empowers decision-makers to create landscapes that not only achieve their desired lifespan but also fulfill their intended purpose while resulting in tangible net cost savings. We undergo continuous training and research so you don’t have to.

Lee Gilman

NHAA Certified Arborist  #378

ISA Tree Risk Assessment Qualified
ASCA Tree and Plant Appraisal Qualified

ISA Board Certified Master Arborist NJ-0145B

NH Licensed Supervisory Commercial Pesticide Applicator #S-2542094

Resources

General Horticulture:

  • Trees are Good - Tree Owner Resources
  • University of Conn - Ornamental Plant Attributes
  • University of Florida - Native Trees, Shrubs & Vines
  • University of NH - Landscaping
  • USDA - Plants Database
  • Bugwood Center for Invasive Species and Ecosystem Health
  • Cornell University - Fact Sheets
  • University of Massachusetts - Fact Sheets

 

Arboricultural Associations:

  • American Society of Consulting Arborists (ASCA)
  • International Society of Arboriculture (ISA)
  • NH Arborists Association (NHAA)
  • NH Landscape Association (NHLA)

 


 

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