A Certified Arborist is a professional arborist who has passed all ten domains of the Certified Arborist examination administered by the International Society of Arboriculture, has three years of full-time experience in arboriculture, has pledged to comply with the ISA Certified Arborist Code of Ethics, and is committed to maintaining certification through 30 continuing education credits every three years. The ten domains are: Diagnosis & Treatment; Pruning; Tree Biology; Identification & Selection; Soil & Water Relations; Installation & Establishment; Safety & Climbing; Nutrition & Fertilization; Cabling & Bracing; and People, Trees & the Environment.
In Maryland, a Licensed Tree Expert (L.T.E.) is an arborist who has met the state’s requirement for education and experience, has passed Maryland’s examination, fulfills eight continuing education credits every two years, and maintains adequate insurance. All tree care professionals practicing and/or advertising in Maryland must be licensed.
Visit the Home and Garden Information Center of University of Maryland Extension: http://extension.umd.edu/tags/tree.
Highest priority is our previous customers, ordered according to urgency: (1) trees on houses; (2) trees that are broken, cracked, leaning, or otherwise threatening lives or homes; (3) downed debris blocking driveways and sidewalks; (4) other downed debris; (5) climbing to prune stubs of broken limbs.

Pleasing Homeowners in Montgomery County, MD Since 1975