California
Tree Removal and Tree Service in California
California regulates tree work at three levels. The state licenses tree contractors and requires defensible space in fire zones, and hundreds of cities protect oaks and heritage trees with their own permits. Know which of the three applies before you ask for a price.
Do I need a permit to remove a tree in California?
Often, yes. There is no single state permit for private yard trees, but a large share of California cities and counties require one for native oaks, designated heritage trees, or any tree above a set trunk size.
- Los Angeles
- The protected tree ordinance covers native oaks, Southern California black walnut, western sycamore and California bay, along with two native shrubs.
- Bay Area and Sacramento
- Most cities define protected or heritage trees by diameter and require a permit and often replacement planting.
- Coastal zone and fire zones
- Coastal development rules can apply near the shore, while defensible space law can require removal near structures.
California tree hazards by region
| Region | Main hazard | Trees involved |
|---|---|---|
| North Coast and Bay Area | Atmospheric river storms on saturated soil, sudden oak death | Coast live oak, tanoak, redwood, Monterey pine, eucalyptus |
| Sacramento and Central Valley | Winter windstorms, summer limb drop in heat | Valley oak, elm, sycamore, eucalyptus |
| Sierra Nevada and foothills | Drought and bark beetle die-off, wildfire, snow | Ponderosa and sugar pine, incense cedar, white fir |
| Southern California | Santa Ana wind, invasive borers, drought | Eucalyptus, pines, palms, coast live oak, sycamore |
State contractor license and defensible space law
The Contractors State License Board licenses tree work under the C-49 Tree and Palm Contractor classification, created in 2024 to replace the older D-49 specialty. A license is required for jobs of $1,000 or more in combined labor and materials, and the exemption below that is narrow. Check the license number on the board's website and confirm workers' compensation coverage, which C-49 contractors must carry.
Public Resources Code section 4291 requires owners in State Responsibility Areas and very high fire hazard zones to maintain defensible space for 100 feet around structures, or to the property line. That means removing dead trees, separating crowns and clearing limbs near roofs and chimneys. Local fire agencies inspect and can cite.
Where a city tree ordinance and defensible space law seem to conflict, the fire agency's written requirement usually supports the permit. Ask both offices before cutting a protected tree.
Wet winters after dry years
The drought of 2012 to 2016 killed an estimated 129 million trees in the Sierra Nevada, most of them pines and firs attacked by bark beetles. Dead trees along roads, power lines and around mountain communities are still being removed.
When the rain returned, it came in atmospheric rivers. In January 2023 a series of storms saturated the ground and brought gusts of 60 mph and more. Sacramento lost more than a thousand city trees in about two weeks, and coastal and Bay Area communities saw eucalyptus, pine and oak fall onto houses and roads.
Southern California's wind is dry. Santa Ana events push gusts of 60 to 100 mph through canyons and passes in fall and winter, toppling shallow-rooted pines and eucalyptus and, as in January 2025, driving wildfire into neighborhoods.
Invasive pests and diseases
- Sudden oak death
- Kills tanoak and coast live oak in coastal counties from Monterey north. A state and federal quarantine regulates moving host plant material from infested counties.
- Goldspotted oak borer
- Has killed tens of thousands of oaks in San Diego County and spread into neighboring counties. Do not move oak firewood.
- Invasive shothole borers
- Tiny beetles that carry a fungus into sycamore, box elder, willow and many landscape trees across Southern California.
- Bark beetles
- Western pine beetle and others kill drought-weakened pines statewide.
- Pine pitch canker
- Weakens and kills Monterey pine along the coast.
First steps for common California situations
- Act now
A tree fell on the house in a storm
Emergency work does not wait for a tree permit. Call, document, and notify the city afterward if the tree was protected.
- This week
A fire inspector cited dead trees or limbs near the house
Complete the work by the date given. Ask for the requirement in writing if a protected tree is involved.
- Plan it
You want to remove a healthy oak or a large street-facing tree
Call the city planning or urban forestry office first. Expect an arborist report.
- Plan it
Tree work is planned for spring
Have the crew check for active nests. State and federal law protect nesting birds, and many cities limit work from about February through August.
California tree service questions
What license does a tree service need in California?
A C-49 Tree and Palm Contractor license from the Contractors State License Board for jobs of $1,000 or more. Some landscaping contractors may also do limited tree work. Verify the license and workers' compensation status online.
Can I remove an oak tree on my property in California?
Check with your city or county first. Many jurisdictions protect native oaks above a small trunk diameter and require a permit, an arborist report and replacement trees.
How much defensible space does California require?
In designated fire hazard areas, 100 feet from structures or to the property line, with the strictest clearance nearest the building. Local ordinances can be stricter.
Why do eucalyptus trees drop limbs in summer?
Eucalyptus and some other species shed large limbs in hot, still weather, a failure often called summer branch drop. Weight reduction pruning lowers the risk but does not remove it.
Tree service in California, by phone
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