Why Choose Preventive Tree Care?


We are Knowledgeable and have an established reputation for quality and results.

Communication is key

We alert our clients by email or text the day prior to service (at their request) to notify them of the service that is to be performed and we will notify them when each service is completed.

Certified Arborist

An ISA Certified Arborist is on staff to review your property and address the specific needs that your trees or your clients trees may need.

Rich History

Preventive Tree has a rich history spanning over 30 years of tree care. We have cared for millions of trees and we have saved over 1 million trees. With a history of proven results we are a company you can trust and rely on when your trees need us.

licensed & Insured

We are licensed with the Colorado Department of Agriculture and we are fully insured.

100% Guarantee

We offer a 100% guarantee on all of our work. If you are not satisfied we will work with you until we have exceeded your expectations, we want raving fans for customers!


Our customers range from home owners, commercial and property managers, metro districts, landscape contractors, golf courses and municipalities. Every year we service over 1,000 customers across Colorado. So we are very adaptable to all types of terrain.

Earth First Initiative

Started in 2018 by CEO and President of Preventive Tree Matthew Sadler. Earth first means treating the environment with respect and believing in a stewardship to protect the land, animals and plants with the highest regard for future generations to come. At Preventive Tree we are purpose driven. While working hard is great, being fulfilled while you do it is even more important. We believe our long term vision of working constantly on creating a better world to live in is what inspires our work. We get thank you letters from our clients all the time thanking us for what we do and for doing it as environmentally responsibly as possible. Our mission is to grow the business through education not only to our employees but to our clients about proper tree and lawn care and how to use the most effective programs for the long term health of the tree, turf and the environment. We specifically achieve this through the following:

  1. Excellence starts internally not externally. We believe our clear vision of why we love what we do and why we love trees is both exciting and inspiring. Every team member is expected to show up and give 110% not for the wage but the belief that what we do is important and special.
  2. With environmental concerns about pesticides and synthetic fertilizers we are constantly innovating and working on providing organic options when they are viable and practicing the most cutting edge techniques to reduce environmental impacts by delivering our solutions in a responsible moral way. With our top priority being on the safety our employees, clients, the public and the environment. In 2017 we reduced our use of bifenthrin by 20%.
  3. We provide a focused and efficient work flow with cutting edge software for routing and truck deployment and utilizing the best equipment available to deliver excellent service when it is needed and where it is needed. Each employee is given clear directives.
  4. We will plant 100,000 trees in the next 10 years. With invasive insects like mountain pine beetle and emerald ash borer wiping out enormous populations of trees we want to replenish and replace a few of the trees lost in our urban forests with strong, healthy and diversified species of trees that will flourish for future generations.

I am very excited about our company and about the work that we do. I live what I expect from our team. I truly wake up every morning excited about where we are going and the potential we have to make huge changes in the industry that create a better environment for future generations to come. We have a unique opportunity to change the paradigm of lawn and tree care through innovation and better techniques and practices that reduce environmental impacts from pesticides and synthetic fertilizers. Healthy trees are happy trees and therefore require little or no pesticides. Proper care and nutrition is our fundamental core at Preventive Tree. I hope you will consider us for your tree and lawn care needs.