Get In Touch With Davey Resource Group

Davey Resource Group Southern California Office

Our California Davey Resource Group, Inc. (DRG) office works with municipalities, businesses, and a variety of organizations to manage and protect the vital ecosystems known as urban forests that help filter water and air, control stormwater, conserve energy and provide animal habitats.

Our team specializes in the nuanced needs of the Southern California area. DRG’s staff of certified experts in the Los Angeles area is ready to help you reach your goals.

In addition to regular Tree Assessments, Inventories, and Risk Assessments, we also offer a variety of Consulting Services, including:

  • Insurance Investigations
  • Post-Fire assessments
  • Pest Detection and Management
  • Outreach & Education
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Have Questions About Our Services? Let's Chat!

Regional Operations Manager, West: Amber Krebbers
Service Areas:
  • Los Angeles
  • San Diego
  • Fresno
  • Palmdale
  • Pomona
  • Escondido
  • West Covina
  • Burbank
  • Rialto
  • Los Angeles
  • San Diego
  • Fresno
  • El Monte
  • Murrieta
  • Temecula
  • Los Angeles
  • San Diego
  • Fresno
  • Long Beach
  • Bakersfield
  • Anaheim
  • Santa Ana
  • Riverside
  • Irvine
  • Chula Vista
  • San Bernardino
  • Fontana
  • Santa Clarita
  • Oxnard
  • Moreno Valley
  • Glendale
  • Huntington Beach
  • Ontario
  • Garden Grove
  • Lancaster
  • Palmdale
  • Pomona
  • Escondido
  • Torrance
  • Orange
  • Fullerton
  • Visalia
  • Thousand Oaks
  • Simi Valley
  • Carlsbad
  • El Monte
  • Murrieta
  • Temecula
  • Costa Mesa
  • Downey
  • Ventura
  • Inglewood
  • Jurupa Valley
  • Santa Maria
  • Norwalk
  • West Covina
  • Burbank
  • Rialto
  • Vista
  • El Cajon
  • San Marcos
  • Compton
  • Hesperia
  • Mission Viejo
  • South Gate
  • Menifee
  • Carson
  • Chino
  • Santa Monica
  • Santa Barbara
  • Indio
  • Westminster
  • Hawthorne
  • Alhambra
  • Los Angeles
  • San Diego
  • Fresno
  • Long Beach
  • Bakersfield
  • Anaheim
  • Santa Ana
  • Riverside
  • Irvine
  • Chula Vista
  • San Bernardino
  • Fontana
  • Santa Clarita
  • Oxnard
  • Moreno Valley
  • Glendale
  • Huntington Beach
  • Ontario
  • Garden Grove
  • Lancaster
  • Palmdale
  • Pomona
  • Escondido
  • Torrance
  • Orange
  • Fullerton
  • Visalia
  • Thousand Oaks
  • Simi Valley
  • Carlsbad
  • El Monte
  • Murrieta
  • Temecula
  • Costa Mesa
  • Downey
  • Ventura
  • Inglewood
  • Jurupa Valley
  • Santa Maria
  • Norwalk
  • West Covina
  • Burbank
  • Rialto
  • Vista
  • El Cajon
  • San Marcos
  • Compton
  • Hesperia
  • Mission Viejo
  • South Gate
  • Menifee
  • Carson
  • Chino
  • Santa Monica
  • Santa Barbara
  • Indio
  • Westminster
  • Hawthorne
  • Alhambra
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What We Do — Browse Our Service Offerings

Tree Preservation

Tree Preservation and Assessment

Tree risk assessment reports, tree protection zone calculations, mapping of critical root zones and trees to correspond with project plans, soil analyses, on-site monitoring, and tree preservation action plans.

Tree Inventory Management

Tree Inventory Management

Our team of experts can examine and document tree health, assess the value of individual trees or overall benefits provided by trees in a neighborhood, city, or state, and spot potential safety risks.

Urban Forestry Planning

Urban Forestry Management Planning

Customized and turnkey solutions for master plans, tree inventories, data collection and analyses, invasive species mitigation, species selection, planting programs, and maintenance schedules.

Urban Tree Canopy

Urban Tree Canopy Assessment

With high-resolution GIS data, we can effectively classify and assess a community’s tree canopy for growth modeling, priority tree planting and planning, and the management of energy conservation, stormwater, and water resource initiatives.

Partner With Davey Resource Group For Your Next Project

With local offices across the country, our team of experts can provide the guidance, analysis, and quality service you need to manage the natural resources on your property. From wetlands and streams to stormwater management and tree inventories, we offer turn-key solutions for clients nationwide.

How To Calculate Tree Protection Zone

Construction Planning, Tree Risk & Tree Preservation Services

Whether you’re looking to plant new trees as part of a construction project, you have trees on your property that have grown to a size that threatens the safety of your property, or you need to preserve a damaged or decaying tree, we can help you maximize your green investment.

DRG offers tree inventory software, AI data collection, drone imaging, and image CAD drawing services, so you can plan the locations of the trees on a new construction project, as well as management planning and permitting assistance, for an end-to-end solution that gives you the expertise and support you need.

We also provide Level 1, 2, and 3 tree assessments that leverage sonic tomography and ground-penetrating radar to help you determine the level of risk your trees pose to the health and safety of your property, so you can make the right decision when it comes to planning and executing tree work.

Arborist Report Treekeeper

Urban Forestry Planning Services  

Trees are a vital part of any landscape, and in an urban setting, they’re even more important to the overall health of the environment. DRG’s urban forestry services can help you plan, monitor, and maintain the trees throughout your property or municipality.

From field inventories to pest management and contract arborist services, our trained experts can keep your trees healthy and looking their best. Additionally, our proprietary TreeKeeper software platform allows you to manage your tree inventory data quickly and easily, so you always know which trees need attention.

Our trained experts can help your urban forestry initiatives from the planning stages to the planting phase, to ongoing maintenance and expansion. Services include:

  • UTC link Story Map
  • Online Planning
  • Resource Analysis
  • Equity Analysis
  • Ordinance Review
  • Education and Outreach
Sonic Tomography

High-Level Tree Risk Assessments

Detecting rot or decay in mature trees is a critical part in reducing the risks posed to people and property. We utilize a variety of techniques and technologies, including Sonic Tomography, to determine the resilience of trees and determine the likelihood of a failure, helping property owners to make the right decision regarding the health and safety of their trees. Our trained arborists can provide:

  • Visual inspections
  • Sonic Tomography (ArborSonic)
  • Overall tree risk assessment and mitigation plans
  • Ongoing maintenance or removal services
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Urban Forestry Technology Solutions

Proactive tree care can help reduce the risk of tree failure, storm damage, and other tree-related liabilities. DRG leverages a suite of technology solutions to provide a comprehensive maintenance plan for your property. With a combination of strategies and a data-driven approach, we provide a proactive, real-time approach to tree management that helps property owners monitor their trees. Our solutions include:

  • LiDAR
  • Ground Penetrating Radar
  • Sonic Tomography
  • Machine Learning
  • Drone Assessments
  • TreeKeeper Inventory Management Software
Environmental Local Office Invasive Pest

Invasive Pest Control

Invasive pests can infest and damage large swaths of tree species, causing tree fatalities and long-term impacts on tree species diversity. Davey Resource Group works closely with state and federal environmental agencies to control and eradicate invasive pests in infested areas.

Our team has extensive experience with these common invasive species (pests) in the Southern California area:

  • Invasive Shot Hole Borer
  • Polyphagous Shot Hole Borer
  • Blue Gum Galling Wasp
  • California Red Scale and Black Scale
  • Avocado Thrips
  • Asian Longhorned Beetle
  • Ash Whitefly
  • Asian Citrus Psyllid
  • Asian Wooly Hackberry Aphid
  • Brown Marmorated Stink Bug

Featured Environmental Consulting Work

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Parks & Trails

Tree Inventory Helps Los Angeles Manage Large Scale Urban Forest

In less than 18 months, DRG completed a comprehensive tree inventory for the City of Los Angeles—one of the nation’s largest urban park systems.
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Parks & Trails

DRG Performs Tree Inventory On Unique Collection For Balboa Park, San Diego, CA

Davey Resource Group inventoried an array of unique trees throughout Balboa Park Conservancy in California, giving park officials the opportunity to make proactive maintenance decisions and lobby for additional funding dollars.
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Your Davey Resource Group, Inc. Southern California Team
Michael Bova Michael Bova Principal Consultant Anne Fenkner Anne Fenkner Project Developer Linda Eremita Linda Eremita Project Manager

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