Tree133

Business Details

Emergency

services

Professional Tree Care Services in Seattle

Tree133 specializes in tree pruning, preservation, and risk management, serving the Seattle area with expertise rooted in over 45 years of combined experience among our certified arborists. We utilize modern arboriculture practices to assess and care for large trees, prioritizing safety, structural integrity, and ecological health. Our team adheres to ANSI Z133 safety standards, ensuring every project aligns with industry best practices while fostering a deep commitment to urban forestry.

We empower clients with informed decisions through formal risk assessments, plant healthcare, and technical services tailored to their unique needs. Our founder, Craig Bachmann, an ISA Board Certified Master Arborist, leads a team of skilled professionals dedicated to elevating arboriculture through education, innovation, and ethical stewardship of urban trees.

Services

Tree Pruning Risk Assessment Root Management Insect Treatment Hazard Removal Storm Response Tree Planting Cabling & Bracing Wildlife Habitat Pruning Disease Management

Highlights and features

Our team has over 45 years of combined experience in arboriculture.
We follow ANSI Z133 safety practices for every project.
Certified arborists provide tailored tree risk assessments and treatments.
We prioritize sustainable practices and client education.
Emergency storm response services ensure rapid, safe cleanup.

Associations and certifications

ISA (International Society of Arboriculture)

What people say

Professional and knowledgeable team Excellent communication throughout Safe and efficient storm response Preserved tree health effectively Detailed risk assessments

Website

Update Listing

Services

Tree Pruning

Tree133 employs the natural pruning system (ANSI A300-2017) to enhance tree structure and health. Our certified arborists focus on risk mitigation, clearance, and restoration pruning, ensuring long-term vitality. Services promote sustainable growth while addressing urban challenges like infrastructure conflicts and storm damage.

Risk Assessment

We conduct comprehensive tree risk assessments using ISA standards, identifying defects and recommending mitigation strategies. Our Level 13 evaluations prioritize safety, combining visual inspections with advanced tools like micro-resistance drilling. Clients receive actionable plans to reduce hazards while preserving tree value.

Root Management

Our root invigoration and management services address below-ground health, using pneumatic excavation and soil amendments. We mitigate conflicts with infrastructure while promoting fibrous root growth. Techniques include vertical mulching and proactive pruning to protect trees during construction projects.

Insect Treatment

Tree133 offers targeted treatments for pests like bronze birch borers and emerald ash borers, using WSDA-licensed applicators. We prioritize low-impact solutions, combining insect control with cultural practices to restore tree health. Proactive strategies prevent infestations and structural decay.

Hazard Removal

For irreparable hazards, we perform safe, technical tree removals using advanced rigging and cabling. Our team handles complex urban environments, minimizing risks to property and people. Post-removal options include habitat snags and sustainable debris management.

People

Craig Bachmann

Lead Arborist & Founder

ISA Board Certified Master Arborist with over 20 years of experience. Specializes in tree risk assessment, safety training, and urban forestry advocacy. Regular speaker at national arboriculture conferences.

Karsten

Certified Arborist & Field Supervisor

Marine Corps veteran and certified arborist with expertise in technical climbing and risk assessment. Skilled in mountaineering and applying precision to complex tree care projects.

Carter

Arborist Consultant

Certified Arborist with 15+ years in natural resource management. Focuses on tree health, risk assessment, and sustainable practices. Combines fieldwork with academic study at Colorado State University.

Grace

Certified Arborist

Specializes in forest science and urban tree ecosystems. Passionate about merging ecological research with hands-on tree care to enhance urban landscapes and client education.

Landon

Certified Arborist

Urban planning graduate with expertise in PNW tree species. Focuses on balancing technical pruning with artistic preservation to maintain tree health and aesthetic value.

Questions

Do you use climbing spikes when pruning healthy trees?

No, we avoid climbing spikes in healthy trees to prevent bark damage. We use ropes and technical gear for safe, non-invasive pruning.

How do you handle debris after tree work?

Debris is chipped on-site using quiet, battery-powered equipment. Chips can be left for gardens, and firewood is provided upon request.

Are you licensed for pesticide application?

Yes, our arborists hold WSDA pesticide licenses and follow ISA best practices for responsible plant healthcare treatments.

Can you work in rainy conditions?

Yes, we work year-round with proper rain gear. Schedules may adjust for extreme weather like high winds or lightning.

What safety standards do you follow?

We adhere to ANSI Z133 safety standards, ensuring rigorous protocols for equipment, training, and on-site risk management.

Do you offer emergency tree services?

Yes, we provide rapid storm response for hazard cleanup, prioritizing safety and efficient restoration of damaged trees.

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Reviews (5)

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Yuri K.

Dec 17, 2021 Report

I had a positive experience working with Tree133 to do a relatively small job (too small for some of the larger firms) of pruning back a couple of trees -- one that was rubbing against our home. I found them using the International Society of Arboriculture "Find an Arborist" tool so I knew they would be thoughtful in their approach. They were quick to respond to provide an estimate. Their prices were competitive to other bids I received. Like all other arborists, there was a pretty long wait between bid and getting the job done (~6 weeks), but throughout the process -- from bid to

Christine R.

Mar 18, 2021 Report

I had a great experience with Tree133! 3 of my large firs were in desperate need for safety pruning, which meant that expertise really was necessary and not any company could perform this type of work. Craig and Joanna were easy and quick to communicate and were always friendly, professional, and knowledgable. I highly recommend!

Lisa G.

Oct 28, 2020 Report

I had a great experience working with Craig and Tree133. He was quick to respond to emails, texted when he was on his way, took time to explain all of the steps he was taking, and the work looks great. I am very happy overall.

Jaeden S.

Mar 15, 2020 Report

Craig is an outstanding arborist. He brings a high level of professionalism and competence to the job site. He's incredibly skilled at safely and efficiently dealing with complex situations. His expertise and training experience set him apart from many others in the industry. From routine pruning to hazard trees and large removals; he can do it all safely and competently.

Ryan H.

Mar 13, 2020 Report

Great company! Craig was very knowledgeable and helped us out immensely with the direction we needed to go in determining whether our tree was safe for us and our neighbors! Highly recommend!