

Located In Grass Valley, CA for over 20+ years

ISA® Certified California Arborists

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Excellent service and trustworthy arborist advice from Zeno and crew. They help us manage our oak trees every year, with a balanced approach toward fire safety and the health of the trees and the ecosystem they support.
Stephanie Parker
Zeno and his crew are top notch. Zeno is friendly, professional, very knowledgeable and easy to work with. His company is timely and does an excellent job, as well as a thorough clean up. I highly recommend Acton Arboricultural for all your tree needs.
Dave Thomas
We've been using Acton Arboriculture for years. Not only have they removed deseased trees from our property but Zeno and his crew planted a fruit tree orchard for us. Zeno and his staff are incredibly knowledgeable, reliable, responsive, and trustworthy. That's why we keep using them.
Stacy Finz

Advanced tools to ensure safe removal without harming your lawn or property.

Rely on over two decades of expertise to handle any tree situation with confidence.

We cleanup everything leaving your yard clean and spotless.

We’re not happy until you’re thrilled with our work on your yard.

We remove or trim your trees quickly, so you can get back to enjoying your yard.

We can help you with insurance-related projects to make sure they're stress-free.

Busy schedule? No problem. Book a time
that works best for you.

Your property is fully protected by our extensive insurance coverage.

Tree maintenance is essential for several reasons: It promotes the health and longevity of your trees, reduces risk and conflict with infrastructure, enhances safety by preventing branches and trees from becoming hazards, and improves the aesthetics of your landscape.

A strategic vegetation management approach helps maintain the health and biodiversity of ecosystems, reduces the risk of wildfires by controlling overgrowth and ensures the safety and reliability of infrastructure, such as power lines and roads, by preventing vegetation interference.

Assessment of the health of a tree’s root system, root protection and root zone improvement.

Proper tree placement, soil preparation, and ongoing care promote healthy growth and aesthetic appeal for years to come.

Expert advice and assessment from certified arborists regarding tree health, safety, and care practices.

Fill out our simple form or call, and we’ll call you back with a fast, no-obligation estimate.

Choose a time that’s most
convenient for you—we'll work around your schedule.

Our experts will safely remove or trim your trees & clean up leaving your yard spotless.
Acton Arboriculture is a locally owned and operated company serving the tree care, restoration and consulting needs of Nevada County and Placer Counties.
Serving the community since 2008, Erin and Zeno have built their business on the values of integrity, trust and customer satisfaction. That is reflected through their personalized service, thoughtful solutions and quality work.
Zeno, a Nevada County native, takes pride in serving the community he knows and loves. The entire Acton Arboriculture, Inc. crew are dedicated to improving and maintaining plant and vegetation health at the wildland urban interface. We look forward to building and maintaining your trust.
Zeno and his expert crew have performed magic high up in the big trees around the house I bought. It takes a lot of knowledge, training, and experience to take care of trees properly. Acton Arboriculture will be doing all my tree maintenance in the future.
Lynn Evans
Could not be more satisfied with our choice to have Zeno and his Acton Team deal with a pretty big tree clearing on our property. They were friendly, professional, knowledgeable, and did a bang up job. Highly recommended!!
Paul McNees
I’ve used the services of Acton Arboriculture on more than one occasion and I am never, NEVER disappointed with the quality of their work or the professionalism of their crews. So personable and they take an interest in each and every tree or project that needs care. Now that I’m aware of the range of services that they perform, they are and WILL BE my ‘go to’ company for tree services.
Valerie McKay
An arborist is a professional who specializes in the care, maintenance, and management of trees, shrubs, and other woody plants. They are knowledgeable about tree biology, health, pruning techniques, disease & pest management and are often involved in planting, diagnosing problems, and ensuring the overall health and safety of trees in various environments, from urban landscapes to natural forests.
A Board Certified Master Arborist is an elite designation awarded by the International Society of Arboriculture (ISA) to professionals who have demonstrated extensive knowledge, experience, and expertise in tree care and management. To achieve this certification, an individual must pass a rigorous examination that covers various aspects of arboriculture, including tree biology, identification, pruning, pest management, and risk assessment. This credential signifies a high level of proficiency and commitment to the profession, making certified individuals trusted authorities in the field of tree care.
Hiring an arborist is essential for maintaining the health and safety of your trees. They possess specialized knowledge in tree biology, care techniques, and disease management, which helps ensure that trees are properly pruned, planted and treated for pests or diseases. Additionally, arborists can assess tree risks, provide proper guidance on tree selection for your landscape, and help enhance the aesthetic and ecological value of your property. Their expertise promotes longevity and vitality in your trees, ultimately contributing to environmental sustainability.
https://www.treesaregood.org/Portals/0/TreesAreGood_Why%20Hire%20An%20Arborist_0321.pdf
Tree Risk Assessment Qualification (TRAQ) is a program developed by the International Society of Arboriculture (ISA) that provides training to professionals in the horticultural and arboricultural fields. It focuses on assessing the condition of trees, identifying potential hazards, and understanding risk management techniques. The program aims to equip participants with the knowledge and skills to evaluate tree stability, determine the appropriate response to risk levels, and communicate those findings effectively. TRAQ-certified arborists use standardized methods to promote safety and informed decision-making regarding tree care and management.
Tree service costs can vary widely depending on factors such as the size and type of tree, the complexity of the job, location of the tree in the landscape and clean up options like chipping or hauling away wood. It is best to have us out to meet with you in person and provide an estimate based on what suits your needs the best. Each work estimate is itemized and can include separate items for clean up options.
If you already know what you need such as a quote to take down a dead tree or a quote to prune for clearance off your home, we are happy to come out and provide an estimate, free of charge. On the other hand, if you would like an arborist to come out and diagnose diseases, evaluate tree structure and other tree concerns, to help you work out the trade-offs between different mitigation options, we recommend scheduling a consultation.
Yes! We have an active license through the CA Contractors State License Board (#894296) with a C27 (landscaping) & a D49 (tree service) designation. We are fully insured through our general liability policy and carry workers’ compensation insurance on all of our employees. A copy of our insurance certificate is available for download on our ‘Resources’ page. You may also request a copy through our office.
The short answer is, ‘No’. Topping isn’t generally recommended as it can harm the tree’s health and structure. Topping, or severely cutting back the crown, hurts trees because it removes large portions of the canopy, leading to stress and potential harm to the tree. This practice disrupts its natural growth pattern and exposes vulnerable inner wood to decay fungi. Additionally, topping encourages rapid regrowth of weak branches that can be dangerous, increasing the likelihood of future maintenance issues. Overall, topping diminishes the tree’s health, vitality, and structural integrity. You should consult with an expert arborist, like us, for the best approach based on the specific species and condition of your tree.
https://www.treesaregood.org/Portals/0/TreesAreGood_Why%20Topping%20Hurts_0321.pdf
The best time to prune your tree typically depends on the tree species and your goals. Proper timing reduces stress on the tree and minimizes the risk of disease. Most species can be pruned year-round like oaks and ornamental trees such as maples but certain species are susceptible to pests and disease so it’s best to know what your tree’s requirements are. Certain species like our native pines (ponderosa pine and sugar pine) are susceptible to bark beetles so the best time to prune is in the winter months when bark beetles are less active. Fruit trees also need to be pruned in the winter months before bud break in the spring. Of course there are other factors to consider as well. The prevalence of certain tree diseases can vary from year to year due to a combination of factors such as weather conditions, climate changes, pest populations, and tree health. For example, wet and humid conditions can promote fungal diseases, while drought stress can make trees more susceptible to infections. Furthermore, changes in environmental conditions and the life cycles of pathogens and pests can lead to fluctuations in disease outbreaks, making certain years more prone to specific tree diseases. As your tree experts, we are knowledgeable in all tree species in our area and can let you know what is best for your trees.
The frequency of tree pruning depends on the species and age of the tree, as well as the purpose of pruning. Generally, young trees should be pruned annually to promote a strong structure, while mature trees can be pruned every 3 to 5 years, or as needed to remove dead or diseased branches. It’s important to monitor the tree’s health and growth, adjusting the pruning schedule as necessary.
To determine if your tree is sick, look for signs such as discolored leaves (yellowing or browning), wilting, premature leaf drop, stunted growth, visible pests or insect activity, peeling bark, or unusual growths like mushrooms. Additionally, check for decay in the trunk or roots, and assess the overall shape and vigor of the tree. If you notice any of these symptoms, it may be beneficial to consult with an arborist for a professional assessment. Arborist experts, like us, can determine the factors that contributed to the tree’s decline and provide solutions to mitigate them going forward.
Filling a tree cavity with cement, spray foam or whatever else you can conjure up is not recommended, as it can trap moisture and lead to decay or harm the tree’s health. There is no structural continuity between cavity fillers and wood. Cavity fillers also complicate tree inspection and removal. If the tree is structurally compromised, consult an expert arborist, like us, for the best course of action.
We don’t utilize a bucket truck, we climb! Since we are located in the mountainous terrain of the Sierra Nevada foothills, accessibility issues create challenges when trying to get close enough to the tree with a bucket truck. We have many talented and skilled climbers who can tackle both routine maintenance and complex removals. If we feel that a tree is unsafe to climb, which does happen, we will bring in a specialized boom lift to complete our work safely.
Spurless climbing refers to a method of ascending without the use of metal spikes or spurs that can damage the tree’s bark and cambium layer and can transmit disease. Our climbers use ropes, friction hitches, cams, mechanical devices and other gear to ascend safely and efficiently while minimizing harm to the tree. This approach is often favored in arboriculture for tree maintenance and care, as it maintains the health and longevity of the tree. Tree spikes should only be used for tree removal.
Claim your peace of mind by removing hazardous trees or limbs,
and potentially saving thousands in property damage.
© Acton Arboriculture, Inc. 2024 l All rights reserved. Your Expert
Tree Care Services in Nevada County | Tree Removal, Trimming and Pruning. PO Box 17, Grass Valley, CA, 95945 530-272-8224