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Our Service Area

We work in the greater San Diego area. We serve all neighboring communities.


California State
Contractors License


Consult/ Expert Witness

The Role of the Consulting Arborist

Consulting Arborists are dedicated to the enhancement of the community and the protection of the environment as the preeminent authorities on matters related to trees and the care of trees-ensuring through their expertise and objectivity the preservation, functionality and beauty of our natural surroundings. They serve as independent resources, rendering professional opinions when they are enlisted as experts by the many industries they serve.

Trees can present a variety of challenges, often requiring careful planning, expert insight, and professional analysis. The role of the Consulting Arborist is to bring a comprehensive, objective, expert viewpoint to the evaluation of arboricultural issues. Consulting arborists are called upon to advise in the most challenging situations that require experience in the science and practice of arboriculture, as well as specified expertise in the practical, ethical, objective role of consultant.

Atlas offers consultations with Board-Certified Master Arborist Ron Matranga. Ron was the first BCMA in San Diego County (as of this writing he is the only BCMA in private practice in SD County). He has experienced working with tree owners and tree managers including homeowners, business owners, attorneys, insurance companies, utilities, developers, landscape architects, and other industry professionals on a variety of sites such as residential, commercial, municipal, and golf courses - anywhere trees exist!


Ron Matranga has been in the tree care industry for over 25 years and is a leader in the San Diego area arboriculture industry. He is a Board-Certified Master Arborist, RCA, and expert witness. He has testified in court on a number of tree cases and manages tree crews on a daily basis. He is on the Board of Directors of the Professional Tree Care Association of San Diego, a local group dedicated to proper tree care practices. Ron has spoken to garden clubs, nursery professionals, and other tree-related organizations about various aspects of arboriculture. Because of Ron’s achievements and experience with residential, commercial, and historical trees and sites, he offers a professional point of view while understanding the practical needs of the field arborist.

Ron has been a member of the American Society of Consulting Arborists (ASCA) since 1999. Arborists possess the highest level of technical and business skills in the industry. They are the preferred choice as authoritative tree experts. ASCA Consulting Arborist are committed to continuing their development of knowledge and skills as industry leaders, participating in continuing education to maintain membership status and remain current on arboricultural issues.

Areas for consultation include (written reports are available):

  • Appraisal
  • Inventories
  • Hazard assessment
  • Plan review
  • Complete tree Evaluation
  • Tree preservation
  • Construction protection
  • Tree selection
  • Tree planting
  • Early tree care
  • Mature tree care
  • Maintenance recommendations
  • Seminars and lectures

Contact Board Certified Master Arborist Ron Matranga today to discuss his services as a Consultant/Expert Witness.