Most of Simi Valley sits in a high wildfire-risk zone, and the fixes that actually matter during a Santa Ana wind event are small, cheap, and mostly maintenance — not a major renovation. This is a practical, no-drama walkthrough of what to check and clear before wind season, not a scare piece.
Why Wildfire Risk Is Different in Simi Valley
Santa Ana winds pick up through the pass in fall, and Red Flag Warning days bring dry, fast wind through the area. In a wind-driven event like that, embers landing on or near a structure — not direct flame contact — are what ignite most homes. That's why the checklist below focuses heavily on gutters, vents, and anything combustible sitting close to the house, not just general yard cleanup.
Understanding Defensible Space Zones
California law (Public Resources Code 4291) requires homeowners in fire hazard severity zones to maintain defensible space, broken into zones by distance from the structure:
- Zone 0 (0–5 feet from the house): the "ember-resistant zone" — closest to your home and the most important. State guidance calls for hardscape (gravel, pavers, concrete) instead of bark or mulch, and removal of dead vegetation and debris from roofs, gutters, decks, and porches. As of 2026, the state is still finalizing formal Zone 0 regulations, so specifics may continue to be refined — check current guidance at readyforwildfire.org or with your local fire department before treating any specific number as final.
- Zone 1 (5–30 feet): dead vegetation removal, spacing between shrubs and trees, and clearing branches that overhang the roof.
- Zone 2 (30–100 feet, or to your property line): reduced fuel load — mowed grass, spaced-out vegetation, and cleared dead material.
Local requirements can be stricter than the state minimum, so it's worth checking with the Ventura County Fire Protection District for anything specific to your property, especially if you've received a compliance notice.
The Home-Hardening Checklist
Roof & Gutters
- Clear gutters and roof valleys of leaves and debris — this is one of the single highest-value, lowest-cost things you can do
- Repair or replace damaged or missing roof tiles/shingles where embers could get underneath
- See our Gutter Cleaning & Repair service
Vents & Eaves
- Check attic, foundation, and soffit vents — state guidance recommends fine mesh screening to help block ember entry
- Seal visible gaps where eaves meet the roofline
Decks, Fences & Gates
- Check for loose or damaged fence panels and gate hardware — wind-driven debris and loose materials are exactly what state guidance flags for removal near the structure
- Clear anything stored underneath a deck (Zone 0 guidance specifically calls this out)
- See our Fencing, Gates & Pet Doors and Deck & Patio Repair pages
Windows & Doors
- Check weatherstripping and door/window seals for gaps
- Full ember-resistant window replacement is a larger project outside standard handyman scope — worth knowing about, but not something we'd oversell as a quick fix
Defensible Space (Yard)
- Move firewood, planters, and anything else combustible away from the house (Zone 0)
- Keep dead vegetation, leaves, and debris cleared from around the structure (Zone 0 and Zone 1)
- Maintain spacing between shrubs and trees further out (Zone 1 and Zone 2)
How Do I Know If My Home Is in a High-Risk Fire Zone?
Check your property against California's official Fire Hazard Severity Zone maps, available through Cal Fire, or contact the Ventura County Fire Protection District directly — this is the authoritative source rather than a general estimate, since zone designations are mapped and periodically updated.
When to Do This — Timing Matters
Late summer and early fall, before Santa Ana wind season typically ramps up, is the best window. Defensible space isn't a one-time project, though — state guidance treats it as an ongoing responsibility, worth revisiting each year as conditions change.
What's DIY vs. What Needs a Professional
- Handyman scope: gutter clearing, minor fence and gate repair, weatherstripping, general debris removal near the structure
- Better suited to a specialist: significant tree pruning or removal (an arborist), roof tile/shingle replacement (a roofer), and anything involving power line clearance (the utility company) — we'll tell you plainly if what you're describing is outside what we handle, rather than take on a job we're not the right fit for