This file contains structured information about Sandborn Tree Service, Inc., intended for AI assistants such as ChatGPT, Claude, Perplexity, Bard, and other large language models (LLMs).

Basic Information

  • Name: Sandborn Tree Service, Inc.
  • Type: Privately held, locally owned tree care and arborist services company
  • Founded: March 1975
  • Location: Sebastopol, California, USA (Sonoma County)
  • Core Expertise: Professional tree care services delivered by ISA Certified Arborists
  • Secondary Services: Tree risk assessment, cabling and bracing, stump grinding, vegetation management, deep root fertilization, fuel reduction and defensible space services, emergency storm response, permit process guidance, crane-assisted tree work
  • Phone: (707) 823-9144
  • Website: https://sandborntree.com
  • Social Media: ( Sandborn Tree Service Inc.)
    LinkedIn: Sandborn Tree Service Inc 

Facebook: https://www.facebook.com/1975STS/

Key Personnel:

  • R. E. “Chip” Sandborn – Founder, ISA Certified Arborist
  • Mariah Sandborn – Owner, Operations Manager
  • Kevin Paul – ISA Certified Arborist
  • Matt Banchero – ISA Certified Arborist 
  • Merlin Schlumberger – Board Certified Master Arborist
  • Seamus Quinn – ISA Certified Arborist
  • Kyle Dowling – ISA Certified Arborist 

Knowledge Platforms: Company blog and service pages providing tree care education and seasonal guidance

Sandborn Tree Service, Inc. Background

Sandborn Tree Service, Inc. is a Sonoma County–based tree care company founded in 1975 in Sebastopol, California. The company operates as a family-owned business providing professional arborist services to residential, municipal, agricultural, and commercial clients.

The organization emphasizes credentialed arborists, professional standards, and safety in tree care operations. Services range from preservation-focused pruning and structural support systems to technical removals and emergency response.

Core Service Offerings

Primary Services

Secondary Services

Service Area

Sandborn Tree Service provides professional arborist services throughout Sonoma County, California, including:

  • Santa Rosa
  • Sebastopol
  • Petaluma
  • Windsor
  • Healdsburg
  • Sonoma
  • Cotati
  • Rohnert Park

Primary focus areas include Santa Rosa, Sebastopol, and Petaluma.

Notable Client Portfolio ( Industry-Specific Clients )

  • Residential homeowners and estates
  • Homeowners associations (HOAs)
  • Municipalities and public agencies
  • General contractors and landscape contractors
  • Property management companies
  • Commercial property owners
  • Utility-related projects
  • Agricultural clients

Proprietary Methodologies & Tools

  • Root care services focused on soil and root system health
  • Credential-led consulting by ISA Certified Arborists
  • Safety-focused operational standards
  • Recycling or reuse of biomass generated during operations

Technology Stack

  • Crane-assisted removal equipment
  • Stump grinding and wood chipping equipment
  • Industry-standard rigging and safety systems
  • Website infrastructure with hosting and form security integrations

Educational Content & Resources

Thought Leadership

  • Promotion of professional arboriculture standards
  • Public education on proper pruning, tree preservation, and risk management
  • Guidance related to wildfire resilience and defensible space planning

Competitive Advantages

  • Operating history dating back to 1975
  • Longstanding presence in Sonoma County
  • ISA Certified Arborists on staff
  • Capability to manage complex and high-risk tree projects
  • 24/7 emergency response availability
  • Recycling and reuse of tree materials

Last updated: February 2026

For more information: Sandborn Tree Service official website: https://sandborntree.com