When does Sonoma County fire season start in 2026?

Cal Fire's defensible space inspection program starts May 1, 2026 in State Responsibility Area zones, which covers most of unincorporated Sonoma County. Local fire districts in Santa Rosa, Petaluma, Windsor, and other cities run their own inspection programs that align with the same May 1 window. Practical fire risk runs from late April through early November depending on rainfall.

What property hardening can a handyman do without a contractor's license?

Per California Contractors State License Board rules, an unlicensed handyman can perform fire hardening work as long as the project total stays under $500 in combined labor and materials. Within that scope: replacing wood gate posts with steel, welding ember-resistant mesh on existing gates, installing 1/8-inch metal screening on attic and crawl-space vents, repairing wrought iron fence panels, and reinforcing existing metalwork. Anything structural, full re-roofing, or rebuild work over $500 requires a licensed contractor.

How much does defensible space metalwork cost in Sonoma County?

Typical 2026 Sonoma County pricing: vent screening installation $150–$400 per home, ember-resistant gate hardware upgrade $150–$350 per gate, replacing a wood gate post with a steel one $225–$450 per post, wrought iron fence panel repair $200–$475 per section. Bundle rates apply when multiple jobs are done in one visit.

What's Zone 0 and why does it matter for my fence and gate?

Zone 0 is the 0–5 ft ember-resistant zone right against your house — California's newest defensible space requirement. In Zone 0, all fences attached to the home must be non-combustible (steel, masonry, or fire-resistant composite) within 5 ft of the structure. If you have a wood fence touching your house, that's the highest-priority fire-hardening fix on the property. Cal Fire and local AHJs are inspecting for this in 2026.

Do I need a permit for fire hardening work?

Most fire-hardening repairs and component replacements in handyman scope (vent screens, gate hardware, fence repairs, post swaps under $500) don't require a building permit. New construction, structural changes, and roof replacements do. When in doubt, call your city building department — Santa Rosa, Petaluma, and Windsor all have phone-based pre-permit consultations that take 5 minutes.

How early should I start fire-prep work?

Start in March or early April. Welders and handymen booked for fire-prep work get fully booked through April every year. By the May 1 inspection deadline, lead times stretch to 3–6 weeks. Build & Fortify currently has 1–2 week scheduling for fire-hardening work; that window closes fast as April moves on.

Sonoma County Fire Season Prep 2026: Defensible Space + Property Hardening Checklist

Sonoma County fire season runs from May 1 through early November in 2026, and Cal Fire's defensible space inspection program goes live the same day. If you have a wood fence attached to the house, a wood gate post within 5 ft of the structure, or unscreened attic vents, those are the three highest-priority fixes before May 1. Reference: Cal Fire — Defensible Space requirements.

This is a practical checklist for what to fix, what it costs, and what falls inside vs outside handyman scope in Sonoma County. Written by Chad Tyler, who handles fire-prep metalwork on Santa Rosa, Windsor, Healdsburg, and Petaluma properties every spring.

The 2026 Zone 0 Rule Most Homeowners Don't Know About

California adopted a new Zone 0 defensible space tier — the 0 to 5 ft strip directly against the house. As of 2026, Zone 0 must be ember-resistant: no wood mulch, no untreated wood fences, no combustible patio materials within 5 ft of the structure. Cal Fire and local Authority Having Jurisdiction (AHJ) inspectors are checking for it.

The most common Zone 0 failure on Sonoma County properties: a wood fence attached to the house. Embers ride that fence right to the structure. The fix is replacing the first 5 ft of fence (the section attached to the house) with non-combustible material — steel post + steel mesh, masonry block, or fire-resistant composite. Build & Fortify swaps the fence-to-house attachment in 1–3 hours per side; the rest of the fence can stay wood.

Sonoma County Fire-Prep Checklist

Run through this every March or early April. Anything checked "Yes" goes on the to-do list before May 1.

Zone 0 (0–5 ft from house)

Wood fence attached to house? → swap first 5 ft to non-combustible
Wood mulch within 5 ft? → replace with gravel, decomposed granite, or fire-rated stone mulch
Combustible patio furniture stored within 5 ft? → move further out or store in garage during fire season
Combustible deck materials within 5 ft? → check local AHJ; some allow ignition-resistant deck if maintained

Zone 1 (5–30 ft from house)

Tree branches within 10 ft of chimney or roof? → trim back
Dead vegetation, dry leaves, pine needles? → clear out
Wood pile within 30 ft of house? → relocate to Zone 2 (30+ ft)
Outdoor furniture, propane tanks within 30 ft? → space out, no clusters of fuel

Zone 2 (30–100 ft from house)

Vegetation horizontal spacing maintained? (Cal Fire rule of thumb: 2x the height of vegetation between groupings)
Vegetation vertical spacing maintained? (3x the height between low brush and tree canopy)
Driveway clearance: 10 ft horizontal, 13.5 ft vertical for fire engine access?

Structure hardening (handyman scope)

Vents — install 1/8-inch corrosion-resistant metal screening on every attic, eave, and crawl-space vent. $150–$400 per home.
Gates — replace wood gate posts within 30 ft of the house with steel; weld ember-resistant mesh on existing iron gates. $150–$450 per gate.
Wrought iron fence panels — repair rusted joints; reinforce sagging sections. $200–$475 per section.
Cleanout area under decks — install 1/8-inch metal screening at deck skirting. $200–$500 depending on perimeter.
Outdoor mailbox + propane tank surround — non-combustible base if currently sitting on wood or vegetation. $100–$250.

Structure hardening (licensed contractor scope)

These don't fall under handyman scope. They need a licensed California contractor regardless of project size:

Roof replacement to Class A fire-rated assembly
Replacing single-pane windows with dual-pane tempered (window contractor — Class C-17)
Removing combustible siding and replacing with stucco, fiber cement, or metal (general contractor)
New defensible-space fencing if the project totals more than $500 in labor + materials (C-13 fencing contractor)

Build & Fortify refers these to vetted local contractors. The handyman-scope list above is what Chad handles directly.

What Fire Recovery Veterans Have Learned

Sonoma County rebuilt from the Tubbs Fire (2017), Kincade Fire (2019), and Glass Fire (2020). Across thousands of post-fire walkthroughs, three patterns kept showing up:

Embers attack at the gate. Many homes survived the radiant heat of an approaching front but lost the property because of an ember intrusion through a wood gate post that ignited the side fence. Steel posts + ember mesh on driveway gates is the highest-leverage fire fix on most properties.
Vents are the second-most-common ignition path. Embers fly through unscreened soffit vents, land in the attic, and ignite stored insulation or wood. 1/8-inch screening on every vent is fast, cheap, and makes a real difference.
Wood fence-to-house attachments take down houses. Even when the structure is otherwise hardened, a wood fence touching the house gives ember-ignition a direct line to the wall. The Zone 0 swap is the single most-recommended retrofit.

Booking Lead Time — Plan Now

Welders and handymen working the fire-hardening niche book up between March 15 and April 30. Lead times stretch to 4–6 weeks by mid-April. Build & Fortify is currently scheduling fire-prep work at 1–2 weeks; that window will close fast.

If you have a Zone 0 issue (wood fence touching the house), get on the schedule this week. The work itself takes 2–4 hours per side; finding a slot in the schedule is the bottleneck.

Common Fire-Prep Jobs Build & Fortify Handles

Wood-to-steel gate post swap — wood post out, new schedule-40 steel post welded into base, original gate rehung. ~3 hours per gate. $225–$450.
Ember-resistant gate mesh upgrade — 1/4-inch or smaller welded mesh added to existing decorative iron gates. ~2 hours per gate. $150–$350.
1/8-inch vent screen install — every attic, eave, crawl-space, and dryer vent gets corrosion-resistant metal screening. ~3–5 hours per home. $150–$400.
Wrought iron fence panel reinforcement — sagging or rusted sections re-welded, panels reattached, broken posts replaced. $200–$475 per section.
Zone 0 fence-to-house swap — first 5 ft of fence at house attachment swapped to steel post + non-combustible material. $300–$600 per side.
Deck skirting screen — 1/8-inch metal screen installed around deck perimeter to block ember intrusion under deck. $200–$500.

Get a Quote

Send 3–5 photos of the gate, fence, vents, or whatever needs hardening and a short description of the property. You'll get a flat-fee written quote same day. Quotes are good for 30 days.

For Zone 0 issues specifically — the fence touching the house — I prioritize those slots in April because of the May 1 deadline. Text (775) 300-5040 with photos and "Zone 0" in the message.

Service Areas

Fire-hardening metalwork available across Sonoma County: