About Tree Truck Whanganui 

Tree Truck Whanganui is a commercial and utility focused arboriculture contractor supporting councils, utility providers, roading contractors and commercial asset managers across Whanganui, Rangitīkei, Ruapehu and South Taranaki. 

We’re known for being compliant, responsive and technically excellent  operating with disciplined health and safety systems in environments where risk, public safety and reputation matter. 

Expert leadership. 
Safe, reliable delivery.   

Group of forestry workers in orange safety shirts and helmets, engaging in a discussion outdoors near a utility truck, with trees and a clear sky in the background.

Tree Truck is led by Brett and Sharnell Stevenson, who bring both deep technical expertise and disciplined operational management to every project. 

Brett is a qualified arborist whose career began in the UK. His knowledge comes from years of hands-on experience and a genuine passion for arboriculture that goes far beyond it being “just a job.” What Brett doesn’t know about trees truly isn’t worth knowing. He applies that expertise to complex commercial, infrastructure and large-scale projects where safety, precision and sound judgement matter. 

Sharnell leads operations and client coordination, ensuring work is clearly scoped, well communicated and delivered without unnecessary friction. From first call to final sign-off, she keeps projects organised, responsive and accountable. 

Together, they lead a team that values safety, compliance and professional standards at every stage - delivering work that protects assets, reduces risk and leaves sites safe, clear and fully operational. 

Built for regulated, infrastructure environments 

Much of our work is delivered in regulated environments - along road corridors, around live networks, and on sites where documentation and safety systems are essential. 

We operate with structured contractor safety systems, qualified supervision, and the equipment to mobilise fast and work safely. That includes in-house Temporary Traffic Management capability (STMS) and specialist access equipment. 

An aerial view showing emergency vehicles and personnel near a fallen tree blocking a road under a bridge over a creek in a forested area.

Regional coverage, local accountability

We’re proud to be a locally owned operator with the scale and capability to support regional programmes. If you’re responsible for asset risk and vegetation outcomes across multiple sites, you’ll find our approach straightforward: clear scope, clear communication, and work delivered safely with minimal operational disruption. 

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