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Hazardous Tree Removal · Statewide

Hazardous Tree Removal in California

Hazardous Tree Removal in California: a hazardous tree is a living tree with a defect, such as a crack, decay, a failing root plate or a new lean, that makes it likely to fail onto something that matters: a house, a driveway, a street or a place people use. Locally, offshore wind events: Santa Ana and Diablo winds topple eucalyptus and pines and cause power shutoffs for fire safety.
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Tree problems in California that call for hazardous tree removal

  1. 1

    Offshore wind events

    Santa Ana and Diablo winds topple eucalyptus and pines and cause power shutoffs for fire safety.

  2. 2

    Atmospheric rivers

    Very wet winter storms saturate soils and uproot large trees, as in the storms of early 2023.

  3. 3

    Protected natives

    Native oaks, sycamores and others are protected in many cities; removal without a permit can bring heavy penalties.

What hazardous tree removal covers

A hazardous tree is a living tree with a defect, such as a crack, decay, a failing root plate or a new lean, that makes it likely to fail onto something that matters: a house, a driveway, a street or a place people use.

How hazardous tree removal works, step by step · part of tree removal

Describe the tree and what it's near, and you'll reach an independent provider serving California.

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Trees in California that most often need hazardous tree removal

Coast live oak and valley oak
Protected in many jurisdictions; sensitive to summer watering and root damage
Eucalyptus
Large, heavy limbs, fire-prone bark; frequent wind failures
Monterey and Aleppo pine
Pests and drought stress; wind failures
Western sycamore
Protected in Los Angeles; subject to anthracnose

Timing in California

Winter
Dormant pruning for deciduous trees; atmospheric-river storms and saturated soils
Spring
Defensible-space work ahead of fire season
Summer–Fall
Drought stress, summer limb drop, fire season; offshore wind events from fall into winter

Tree rules and permits in California

  • Los Angeles protects native oaks (except scrub oak), Southern California black walnut, western sycamore and California bay laurel measuring 4 inches or more in cumulative diameter, plus two native shrubs; removal requires a permit from the city's Urban Forestry Division.
  • Sacramento protects native oaks, California buckeye and California sycamore 12 inches DSH and larger on private property, plus trees 24 inches and larger on undeveloped, commercial and multifamily properties.
  • In State Responsibility Areas and very high fire hazard severity zones, California law (Public Resources Code 4291) requires defensible space around structures.

Sources (checked 2026-10-01)

Rules change and details depend on your exact property. Confirm with the city or county before work starts. This isn't legal advice.

What affects the price of hazardous tree removal in California

The usual drivers are size, access, what's under the tree and cleanup; see the full list for hazardous tree removal.

Hazardous Tree Removal in California: common questions

Do I need a permit for hazardous Tree Removal in California?

Los Angeles protects native oaks (except scrub oak), Southern California black walnut, western sycamore and California bay laurel measuring 4 inches or more in cumulative diameter, plus two native shrubs; removal requires a permit from the city's Urban Forestry Division. Sacramento protects native oaks, California buckeye and California sycamore 12 inches DSH and larger on private property, plus trees 24 inches and larger on undeveloped, commercial and multifamily properties.

Which trees in California most often need hazardous tree removal?

Coast live oak and valley oak: protected in many jurisdictions; sensitive to summer watering and root damage Eucalyptus: large, heavy limbs, fire-prone bark; frequent wind failures Monterey and Aleppo pine: pests and drought stress; wind failures

When is the best time for hazardous tree removal in California?

Winter: Dormant pruning for deciduous trees; atmospheric-river storms and saturated soils Spring: Defensible-space work ahead of fire season

Offshore wind events: what does it mean for hazardous tree removal in California?

Santa Ana and Diablo winds topple eucalyptus and pines and cause power shutoffs for fire safety.

Atmospheric rivers: what does it mean for hazardous tree removal in California?

Very wet winter storms saturate soils and uproot large trees, as in the storms of early 2023.

Protected natives: what does it mean for hazardous tree removal in California?

Native oaks, sycamores and others are protected in many cities; removal without a permit can bring heavy penalties.

Other tree services in California

Hazardous Tree Removal nearby

More about California: tree removal in California · all locations

Need hazardous tree removal in California?

Call to reach an independent tree-service provider that serves California. Calling is free and you decide whether to hire anyone.

Call for tree service

By calling, you agree that your call may be recorded and routed to an independent local tree-service provider, who may call or text you back about your request. Calling is free and does not obligate you to hire anyone. See our Privacy Policy.

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