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


We hired Arborworks to remove 10 trees at our new house. There was a small overgrown forest going on. I don’t think anyone ever trimmed anything in this yard! Not only did they remove the trees and ground the stumps, they also took out our other items we had cut down ourselves.The biggest tree was almost three stories, you could see it towering over the house from the front and we have a two story house. Could not believe how efficiently they cut down that monster tree. Their guy who was in the tree – WOW he made it look easy but I know that it wasn’t! Knew what limbs to cut and where the limbs were going to fall. Was very impressed! We were there when they took all the trees out and I can tell you they definitely know what they are doing. They asked if we wanted the chips/mulch from the stump grinder otherwise they would have taken it away.I would hire them again in a heart beat and I’ve already recommended them! Great prices and GREAT service.
George R. Palo Alto, CAPalo Alto, CA


Arborworks Inc. Diamond Certified


Gloden Shovel Standard