Our Credentials

Experience is the best teacher, and with over 40 years in the tree care industry, ArborWorks is the solid choice for any tree care project.  With offices and yards throughout California, no job site is out of our reach.  With Arborworks’ many licenses, memberships and certifications, no work is beyond our scope.

Diamond Certified

ArborWorks qualified for this prestigious accreditation after passing each step of a twelve step rating process designed by the American Ratings Corporation (ARC).  The ARC surveyed a random sampling of 100 ArborWorks clients, requiring a score of more than 90 on a scale of 100 to qualify as a Diamond Certified company.  Our clients rated ArborWorks not only on the quality of our work, but also on their willingness to return to ArborWorks for further services or refer other consumers to the company.  ARC also verified liability, auto and workers compensation insurance, state license status, compliant status, business practices, financial stability and legal judgement status.  ArborWorks is proud to count themselves among the elite few companies who bear the Diamond Certified award.


California Contractor’s License #879506
Licensed Timber Operator
Qualified Applicator License, Department of Pesticide Regulation


ISA Certified Arborists on staff


ISA – International Society of Arboriculture
TCIA – Tree Care Industry Association
CLCA – California Landscape Contractors Association


IS Network


Anyone who really cares about their trees knows how hard it is to find a good tree trimmer. I’ve used both major name brands, and self employed tree trimmers, and have never been very satisfied, until now. ArborWorks trimmed my trees as carefully as I would have, if I knew how to climb trees!Don McIntyre, owner, responded within two days of my call, and his estimate was fair and thorough. He personally brought the foreman of the crew to my site to go over the job the evening before the crew would actually arrive. Don also visits the site as the work is performed, to make sure everything goes smoothly.If my trees could vocalize, they’d sing about the space created for light to enter the crown, and how good it feels to have the weight off the ends of the limbs. Even neighbors have come by to complement me on how good the trees look. “Best ever”.I only wish I had known about ArborWorks sooner. It took me 32 years to find them. I hope my trees will forgive me for taking so long…
Karen K. Mountain View, CA


Arborworks Inc. Diamond Certified


Gloden Shovel Standard