Professional Arborists & Tree Risk Assessors

Tree133 specializes in tree pruning, preservation and risk management. Our team of Certified Arborists have more than 45 years of combined experience. We are professional arborists who utilize modern arboriculture practices for assessment and care of large trees in and around Seattle, WA. 

The Tree133 team is passionate about providing sound advice and professional service. Whether you need guidance on tree care, a formal risk assessment, plant healthcare or specialized technical services, we can help you make informed decisions and complete your project.

Craig Bachmann – lead arborist and company founder – is an ISA Certified Arborist & Tree Risk Assessor, conference speaker and professional arborist skills trainer.