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Preserving Trees 
Empowering People

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Professional Arborists 

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  Board Certified Master Arborist & Tree Risk Assessor, conference speaker and professional arborist skills trainer. 

Safety Always
Tree 133 Logo

SAFETY ALWAYS

Worksite safety is a key value for Tree133. We follow ANSI Z133 safety practices in all aspects of our work. That standard provided the inspiration for our name, Tree133.

WA License # TREE1L*832B3, Bonded & Insured
City of Seattle Registered Tree Service Provider: LIC-TSP-18493 

Contact & Certification

206-745-0473

arborist@tree133.com

Tree133 LLC

Craig Bachmann

Lead Arborist & Manager

ISA Board Certified Master Arborist # RM-7652BT

Certified Treecare Safety Professional

Certified Tree Worker

Tree Risk Assessor

Safety Trainer / OSHA-30

International Society of Arboriculture ISA certified arborist logo
Tree Care Industry Association TCIAlogo

OUR SERVICES

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Pruning & Removals
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Insect & Disease Treatment
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Roots & Planting
arborist measuring decayed area in tree trunk
Risk-assessment
Arborists in yellow shirts practicing aerial rescue skills
Training
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Our Satisfied Clients

We recently hired Craig and his team to assist with some overgrown trees in our backyard. Craig was SO thoughtful in his recommendations and his team did amazing work! Highly recommend them and will work with them again in the future.

— Gillian K

Frequently asked questions

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