About us

Who is Colonial Tree Service, and why should you hire us?


Because you want knowledgeable, experienced professionals that are responsive to your property's individual needs, easy to do business with, and leave you feeling good about choosing Colonial Tree Service for all of your tree-care needs.  

Excellence and professionalism

You deserve value for your investment.  You want services carried out properly and safely, and communication to be clear and timely.  At Colonial, we strive for excellence in all we do.  We have a system that makes doing business with us incredibly easy, keeping you well-informed throughout the process, for a truly exceptional experience.


Our crews are professional in appearance and conduct.  We require an ISA Certified Arborist and Certified Treecare Safety Professional (CTSP) on every job to ensure your services are performed according to industry standards and best practices.  We adhere to ANSI Z133.1 safety standards, with our crews wearing appropriate personal protective equipment and taking necessary precautions to keep everyone safe.


We invest heavily in our team's professional development through ongoing internal and external training programs and remain engaged in arboriculture and urban forestry through continuing education, industry conferences, and active memberships with the International Society of Arboriculture (ISA), the Tree Care Industry Association (TCIA), the Wisconsin Arborist Association (WAA), and the Society of Commercial Arboriculture (SCA).  

Licensed and insured


We have the qualifications and experience to properly manage your trees, ensuring the best return on your investment.  We are state licensed for pesticide application and as a nursery re-seller. 


Our team has the following credentials:  ISA Certified Arborist, Tree Risk Assessment Qualified (TRAQ), Electrical Hazards Awareness Program (EHAP), Certified Treecare Safety Professional (CTSP), and First-Aid, CPR-AED Certified.  


Naturally, we carry liability, workman's compensation, and umbrella insurance as required for our industry.  We'll be happy to give you a certificate of insurance; just contact our office. 


Personalized approach


We understand your goals and budget are unique to you and your property.  Our arborists listen to your concerns, answer your questions, and provide you with personalized solutions.

We value our relationship with you and hope to remain in contact with you over the years - at the very least, through our blog and social media.

The Colonial difference


Because your trees are valuable assets, we believe we have a fiduciary responsibility to you to ensure that they are managed appropriately.  That means we will only prescribe the care they need; we will never up-sell just to grow our bottom line.

We are serious about our company vision, mission, and core values, and want to partner with you for a win-win-win outcome: a win for you, a win for your trees, and a win for Colonial.


Company Vision

Be an innovative arboricultural firm that grafts commercial tree care, education, and community involvement together to leave a legacy for generations.

Mission Statement

Promote and provide safe and proper care of our urban forest, foster mutually beneficial relationships with our clients and employees, and give charitably through volunteering and financial contributions.

Core Values

Do the right thing.


Deliver on our promises.


Trusted experts in arboriculture.


Continuous Improvement
Evaluate. Educate. Execute. Repeat.


Responsibly manage people, plants, and profits.


ar·​bor·​ist | \ ˈär-bə-rist



A specialist in the cultivation and care of trees and shrubs, including tree surgery, the diagnosis, treatment, and prevention of tree diseases, and control of pests. 

urban forest

ur·​ban for·​est | \ ˈər-bən  'fȯr-əst


A collection of trees that grow within a city, town or a suburb. Urban forests play an important role in ecology of human habitats in many ways: they filter air, water, sunlight, provide shelter to animals and recreational area for people. They moderate local climate, slowing wind and storm water, and shading homes and businesses to conserve energy.

Serving Waukesha County and surrounding communities:  Brookfield, Elm Grove, New Berlin, Pewaukee, Waukesha and more.