Arborist Consulting
Arborist Consulting in Ukiah, CA 95482
At Johnson’s Quality Tree Care, our certified arborists offer professional tree consultations. During this consultation, we will conduct a walk-through of your landscape – making an inventory of the plant species in your yard.

As we assess your trees and shrubs, we will:

  • Diagnose problems
  • Help with insurance claims
  • Evaluate potential tree hazards
  • Identify insect infestations
  • Check for diseases
  • Offer tree preservation advice
  • Analyze soil health
  • And so much more!

At the end of our walkthrough, we will provide a proposal and recommend further services. Our goal is to develop a course of action and management plan that suits your priorities and budget.

What is an Consulting Arborist?

Consulting Arborists are authoritative experts on tree health. Our consultants are highly qualified and trained. We deliver a factual, comprehensive overview of the health, safety, and condition of your trees, shrubs, and other vegetation. This is achieved by conducting tree inspections, assessing risks, drafting arborist reports, prescribing pest, soil, and disease treatments.

We service various clients, including:

  • Homeowners
  • Farmers
  • Municipalities
  • Commercial site managers
  • Landscape architects, engineers, and developers

We’re ISA Certified Tree Experts Providing the Following Services

Most of our expert consultants are certified by the International Society of Arboriculture* (ISA). To become an ISA certified arborist, one must have over 3 years of professional tree care experience or a degree in arboriculture, pass a 200-question exam, and recertify every three years.

The ISA is the preeminent certification for arborists worldwide. Our consulting arborists provide numerous services, including:

  • Tree protection
  • Nursery and tree appraisals
  • Expert witness
  • Insect and disease management
  • Municipal ordinance development
  • Tree risk surveys
  • Tree planting programs
  • Tree inventories

Tree Inventories

A thorough tree inventory is important when developing comprehensive urban, construction, and/or forestry management plans. Tree inventories gather vital data on the size, species, and location of trees.

During an inventory, we document:

  • The total number of trees
  • Each tree’s health
  • Potential hazards
  • Disease or infestations
  • Maintenance recommendations

This information is beneficial when analyzing the pros and cons of prospective landscaping, construction, urban planning, and urban forestry projects. In the event that damage occurs, this inventory will prove beneficial when filing claims.

Tree Protection

Tree protection inspections are a critical safeguard to help ensure construction projects do not negatively affect nearby trees. Unregulated construction can pose many threats to a landscape and surrounding vegetation. Soil compaction is just one of many examples that show how disruptive construction can be to trees’ overall health. As soil and construction materials are compacted, the underground oxygen supply in a root system can decrease. This can lessen a tree’s ability to absorb water and even cause premature death. Our arborist consultants can examine your site to offer guidance on how to keep trees and plant life safe during construction processes.

Tree Risk Assessment

One of the primary reasons for an arborist consultation is to assess potential tree hazards and suggest preventive measures. By comparing the risks and benefits involved, it will be easier to determine whether to remove the tree or not. Every tree has some element of risk. Our goal is to assess the structural soundness and potential for failure of a tree. Knowing the severity of unsafe tree conditions will allow you to make informed and proactive decisions. When a tree is deemed defective and hazardous, we will also offer professional recommendations to help mitigate the risks involved.

Tree Failure Assessment

When a tree collapses or dies, our consultants can help assess the causes of tree failure. We will thoroughly examine each section using standardized methods.

This detailed inspection will look for:

  • Thinning canopy and/or declining crown health
  • Diseased, dehydrated, or infested branches
  • Fungus growth
  • Weak crotch systems
  • Soil heaving near the root plate
  • Unstable, overextended, broken, or weak branching patterns
  • Cracked and decaying tree trunks
  • Decaying or exposed roots

Tree Roots

Tree root systems are the literal anchor and foundation for any tree as well as a food source for your tree. During winter, tree roots store essential nutrient reserves to produce spring foliage. During spring, they transport water and minerals from the soil to the tree. Accordingly, their health is a top priority. With a regular arborist consultation, you stay updated on the condition of your tree roots and receive preventive tips on how to avoid root disease and failure.

Our tree root appraisal will examine:

  • Soil compaction – Heavy clay subsoils and soil compaction can restrict oxygen and water uptake, harming and even killing many trees.
  • Soil depth – Tree roots rely on soil to extract nutrients, anchor, and breath. When adding and removing soil, a tree’s root system can be threatened. Let us ensure your root systems thrive by assessing whether the soil depth and volume are right for the surrounding vegetation.
  • Overwatering/underwatering – Overwatering can saturate the soil so much it restricts the flow of oxygen, thereby suffocating tree roots. Underwatering will dehydrate tree roots – causing them to rot.
  • Surrounding fertilizer – Excess fertilizer can kill tree roots, while insufficient fertilizer will deprive tree roots of essential minerals needed to stay healthy. We will help you find the right balance.
  • Trenching, construction work, and digging – Digging trenches, laying pavement, boring holes, and other work involving soil excavation and heavy-duty machinery can significantly threaten root systems.

We Provide Consulting Arborist Services

Our consultants are available to provide services to the following commercial and municipal entities:

Community Managers

If you manage a large community, public park, golf course, cemetery, outdoor entertainment venue, or private development, you likely have many trees on your property. A consultant can provide a tree inventory and assessment to help you create short and long-term maintenance plans. Proactive maintenance plans will assist with budgeting and reducing unnecessary costs.

Homeowner Associations

A primary responsibility of Homeowner Associations is to settle conflicts and organize community landscaping plans. We can help Homeowner Associations create cost-effective maintenance plans – recommending safe, healthy, and durable trees to plant in shared spaces. We can also assess shared landscapes to help you proactively prevent potential tree loss and damage.

Property Management Companies

Managing a property is not an easy task. It is your responsibility to ensure your property is safe, inviting, and affordable. As a result, landscaping is a key area of concern. Our consultants can help you create landscaping budgets and help protect your property against tree collapse. We provide comprehensive tree assessments of risks and hazards and treatment advice for pest infestations and diseases.

Real Estate Agents

Real estate agents may require an arborist’s expert guidance in matters dealing with property assessments and inspections. Responsible homebuyers will want to know the dangers posed by trees on their landscape and the presence of any infestations, root damage, and disease. By consulting with an expert on such matters, you will receive an informed appraisal, a thorough assessment, and professional advice.

Landscape Professionals

The job of a landscape professional is to maximize value and minimize disruption. If you are concerned about the potential dangers and hazards of planting certain tree species/sizes, we can assess the prospective area to help you make practical decisions. Our arborists can also assist with supervision of work near trees, root mapping, and land planning. Finally, when debating whether to strip the land of its vegetation or build around existing trees, we can offer sound, detailed assessments to help you make a knowledgeable decision.

Tree Service Providers

Many tree service providers lack the in-depth knowledge of an ISA Certified arborist . Drawing upon years of experience and education, our arborists offer sound advice on the structure, health, and safety of trees. This will allow you to take the best course of action.


Trees located in public areas must be maintained and regularly assessed. If a hazardous tree is close to structures or pedestrians, we highly recommend remedial action. Similarly, if a historic tree is creating a challenge for a park, walking trail, or any municipal project, we can help you assess its preservation value and/or find ways to work around the tree.

And More

Our goal is to offer professional estimates, assessments , and advice on all matters pertaining to trees. We may recommend nutrients , pest control, site remediation, pruning, and/or immediate removal to mitigate hazards. Our services apply to property owners in countless industries.

Arborist Consulting

Johnson’s Quality Tree Care

Ukiah, CA 95482



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