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


Being in this industry for almost 30 years I have seen and encountered all kinds of situations regarding trees.

I began working for a contractor doing power line clearance where I learned to climb and most importantly complete the job as safely as possible.

From simple broken branches that are hung up, to trees falling through houses and cars-i have seen it all.

With safety in mind, I oversee and educate our crew on removal of trees, and safely handling hazardous situations. When your tree requires expert care and knowledgeable rigging techniques, we are your crew.

Arcangel Martinez

ISA Certified Arborist 

Born and raised here in Santa Rosa, I grew up in the industry alongside my father. From a young age, I was pulling brush on the weekends and summers away from school.

I continue to pursue my childhood job in the tree industry, and now as an ISA Certified Arborist, ISA Qualified Tree Risk Assessor, and Wildland Firefighter Type 2, I use my knowledge and continued education to give our community the best tree care possible.

As a Certified Arborist, it is my duty to put forth proper tree care in an industry that is heavily plagued by improper care of trees. Proper pruning techniques is extremely vital to the long-term health of your trees. Call me over, and we can talk trees, you won’t regret it!

David Diaz


I have been in the tree care industry for six years now, with three od those years with Ultimate Tree. I am a climber that loves to go way up higher than 100 feet in the tree canopy! I look forward to serve you, and your tallest of all trees!

Angelico Diaz


I have been in the tree care industry for five years, three of those being here at Ultimate Tree. My specialty comes from Southern California, and that is Palm trees! From simple dead frond removal, to complete palm tree cleaning, I am your guy!