About

Meet the Oak Wilt Bros

Oak Wilt Pros is dedicated to preserving the iconic oak trees of the Texas Hill Country. Founded by brothers Stephen and Mark Ashby, together they hold 20 years of combined experience in diagnosing, treating, and preventing oak wilt. Their expert solutions are tailored to protect and sustain healthy oak trees for generations to come. With a commitment to quality care and long-term preservation, Oak Wilt Pros is the trusted choice for homeowners and landowners seeking professional tree health management.

My brother and I created Oak Wilt Pros to help stop the spread of Oak Wilt through industry recognized treatment and prevention services. Join us in the fight to keep the Texas Hill Country beautiful. Follow us as we operate with an emphasis on customer relations as well as our social & environmental impact.
-Stephen Ashby

Stephen Ashby

Owner | Manager

Stephen has 15 plus years experience in operations, general contracting & construction management. He holds a B.S. degree from Lamar University, is an ISA Certified Arborist, and is a licensed commercial applicator with the Texas Department of Agriculture. Stephen aims to provide the best experience for clients dealing with oak wilt related issues.(ISA Cert ID: TX-353918A | TDA license #0840596)

Owner | Manager

Mark Ashby

Mark is an ISA Certified Arborist & Texas Oak Wilt Qualified professional that has spent the last 12 years specializing in oak wilt management. He has personally injected thousands of trees and overseen numerous trench installation projects. Mark looks to make a bigger impact on the fight against oak wilt as an owner at Oak Wilt Pros. (ISA CERT ID: TX-4597A TOWQ-396)

Why choose the Pros?

Knowledge & Experience

We are one of the few companies that specialize in oak wilt management. That means our focus is on treating, preventing, and helping you protect your investment from oak wilt. With over a decade in oak wilt experience, we have been a part of saving thousands of trees and minimizing the impact of oak wilt on affected properties.

Licensed & Insured

Management plans created by Texas Oak Wilt Qualified & ISA Certified Arborist. ISA Member and ISA Texas Chapter members. Licensed commercial applicator with the Texas Department of Agriculture. We are a fully insured business and hold a A+ rating with the Better Business Bureau.

We give back!

Oak Wilt Pros strives to have a greater social & environmental impact. By donating a portion of our sales we are able to invest in causes like the replanting of our national forests as well as in research to better combat destructive diseases like oak wilt.