Oak Line Landscape & Consulting Request an assessment
Los Angeles & Orange County  ·  Consulting Arborist

Hi, I'm Kenneth. I take care of trees in Los Angeles and Orange County.

I'm an ISA Board Certified Master Arborist and a licensed landscape contractor. I do tree risk assessments and arborist reports, plant health care, and full landscape design and installation.

Board Certified Master ArboristISA No. WE-14876BUMTRAQ QualifiedTree risk assessmentC-27 Landscape ContractorLic. No. 1138229
ISA Board Certified Master Arborist · WE-14876BUM
TRAQ · Tree Risk Assessment Qualified
C-27 Landscape Contractor · Lic. #1138229
ISA Board Certified Master ArboristNo. WE-14876BUM
ISA Utility SpecialistLines, clearance, and rights-of-way
ISA Urban Forest ProfessionalManaging trees at city scale
TRAQ QualifiedTree risk assessment
Prescription Pruning QualifiedFlorida ISA Chapter
C-27 Landscape ContractorLic. #1138229
Services

Diagnosis and documentation, then the work itself.

Consulting and landscape contracting under one roof, so the plan on paper is the plan that gets built.

Trees & Consulting

Tree risk assessments & reports

A structured evaluation of defects, load, and what sits below — written up in a report you can hand to a city, an insurer, or a board.

Plant health care

Diagnosis and treatment of pests, disease, decline, and soil problems, with a care plan you can actually keep up.

Tree inventories

Every tree on the site tagged, located, and condition-rated, so you know what you're managing before you budget for it.

Preservation plans

What it takes to keep a mature tree through a project: root zones, pruning limits, and monitoring during construction.

Tree protection plans

Fencing, specifications, and documentation that satisfy plan check and hold up in the field.

Consulting

Second opinions, pre-purchase reviews, and clear guidance when a tree becomes a question between neighbors, owners, or agencies.

Landscape

Landscape design

Planting plans built around the soil, exposure, and mature trees you already have.

Landscape installation

Build-out by a licensed C-27 contractor, from grading and hardscape to final planting.

Irrigation systems

Zoned, efficient watering that suits established trees and new plantings at the same time.

Landscape maintenance

Ongoing care that keeps the design intact as it fills in.

Tree risk assessment

Three levels of assessment.

Risk assessment follows the ISA's TRAQ standard. Which level you need depends on how many trees are involved and how specific the question is.

Kenneth Rodriguez inspecting a sycamore canopy on rope
Aerial inspection during a Level 3 assessment.
Level 1

Limited visual

A visual check from one vantage point — on foot or from a vehicle — looking for obvious defects. Built for covering many trees quickly.

Level 2

Basic assessment

A complete inspection of the tree from the ground — crown, trunk, root flare, and the site around it — walking the full circle and sounding for defects. This is the standard assessment.

Level 3

Advanced assessment

Used when a Level 2 leaves a specific question open — how much sound wood is left, how far decay runs, what's happening below grade. Includes internal testing, root collar excavation, and climbing inspection.

When to call

Most tree failures give notice first.

If any of these describe your property, an assessment is worth doing now rather than after.

Valley oak — Quercus lobata

A limb has failed, or one looks like it might.

Coast live oak — Quercus agrifolia

Construction, grading, or a remodel is planned near an established tree.

Blue oak — Quercus douglasii

The city is asking for an arborist report or a protected-tree permit.

Engelmann oak — Quercus engelmannii

A tree is thinning, dropping leaves early, leaning, or losing bark.

Canyon live oak — Quercus chrysolepis

You're buying or selling a property with mature trees on it.

Cork oak — Quercus suber

An insurer, HOA, or attorney needs the condition documented.

Process

Three steps, no guesswork.

Step 01

Site visit

We walk the property together, inspect the trees, and take the measurements the assessment depends on.

Step 02

Findings in writing

You get a report or plan that states the condition, the risk, and the recommended work in priority order.

Step 03

The work

We carry out the landscape and plant health work, or coordinate with your crew so the plan is followed.

Kenneth Rodriguez, consulting arborist at Oak Line Landscape & Consulting
About

Kenneth Rodriguez, Consulting Arborist

Kenneth is a consulting arborist and licensed landscape contractor working across Los Angeles and Orange County. He holds the International Society of Arboriculture's Board Certified Master Arborist credential — the highest certification the ISA awards — along with its Utility Specialist and Urban Forest Professional credentials, TRAQ qualification in tree risk assessment, and Prescription Pruning qualification through the Florida ISA chapter.

That combination is unusual, and it's the point: the person writing your report is the person who understands what it takes to build and maintain the landscape around the tree.

Expert care.  Stronger trees.  Healthier communities.
Contact

Start with a site visit.

Tell us what you're seeing and where the property is. We'll get back to you with next steps and a quote.

We usually reply within one business day.