Arborists in Bartlett Tree Experts' Sonoma, CA office are committed to helping local residents and businesses maintain beautiful, healthy trees and shrubs. Our office provides tree and shrub care services in Napa and Sonoma counties.. Cabling and Bracing,Emergency Tree Service,Fertilization and Soil Care,Insect and Disease Management,Plant Analysis and Diagnostics,Pruning,Tree Inspections,Tree Inventory,Tree Removal,Tree Structure Evaluation