About Ultimate Tree Service

Ultimate Tree Service LLC is a family-owned and operated business based in Santa Rosa, CA. We are a father and son team that has come together to serve our community.

We keep in mind the importance of safety, tree health, and most important, the gratification of our customers! When you work with us, you are working directly with the owners!

Jose Martinez

Owner/Senior Climber

I have been in the Tree Care industry for over twenty-four years! I began working for a contractor doing power line clearance where I learned to climb and most importantly complete the job as safe as possible. Those power lines are no joke!

Now I am continuing my education to become Arborist Certified, and serve as the lead climber and trainer for my company, where I take care of anything from fruit tree pruning to hazardous tree removals. I look forward to bringing my knowledge and expertise to complete any job as safe as possible!

Arcangel Martinez

ISA Certified Arborist / ISA Tree Risk Assessor / Wildland Firefighter Type 2

Born and raised here in Santa Rosa, I grew up in the industry along side my father. From the age of eleven I was dragging brush on the weekends and during my summers away from school. I sought out other careers to try and move away from this line of work, but I always came back.

I decided to stick with what I knew best, and follow a career in arboriculture. Now as an ISA Certified Arborist, ISA Qualified Tree Risk Assessor, and Wildland Firefighter Type 2, I use my knowledge and education to give our community the best tree care possible.

From Hazard tree removals, to fire risk management and everything in between. I put forth the importance of proper tree care in our business, and our community. As I continue my education majoring in Agriculture Plant Science, I look forward to best serve you, in the county, which has been home all my life!

David Diaz


Rubisel Diaz


Julian Rios


Angelico Diaz