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10 Best Wildfire & Defensible Space Contractors in Marin County (2026)

Updated: 2026-07-05

Marin's 2025 CAL FIRE map update pushed most unincorporated hillside areas into High or Very High fire hazard zones, with San Rafael, Novato, and Mill Valley among the most exposed. The Marin Wildfire Prevention Authority runs free defensible-space evaluations countywide; below are licensed contractors for the paid hardening work those evaluations turn up, ranked by verified rating.

Top 10 contractors in Marin County

Fire hazard zones in Marin

CAL FIRE’s February–March 2025 statewide map update moved large parts of Marin’s hillside and wildland-adjacent neighborhoods from Moderate into High or Very High Fire Hazard Severity Zone status. San Rafael, Novato, and Mill Valley — where homes back up against grassland and forested open space — carry some of the largest shares of parcels in the highest-risk category. If you haven’t checked your zone since before 2025, it’s worth confirming again through Marin County’s fire hazard mapping resources, since the new designation can also trigger AB-38 disclosure requirements at resale.

Local rules and deadlines

State law (PRC 4291) sets the floor: 100 feet of defensible space around structures. Marin cities can go further. Mill Valley’s Vegetation Management Ordinance requires removing ten specific fire-prone species — acacia, bamboo, arborvitae, Italian cypress, junipers, and several broom varieties — from Wildland Urban Interface parcels, on top of the standard clearance rules. Actual enforcement of any code-required fixes identified during an inspection is handled by your local fire agency, not MWPA, so deadlines and fines vary by jurisdiction — check with your city or fire district directly.

Free programs before you hire

Before paying a contractor for an assessment, use what Marin already funds. The Marin Wildfire Prevention Authority — a joint powers authority funded by the Measure C parcel tax — provides free Defensible Space and Home Hardening Evaluations to properties across all 17 member jurisdictions, with most homes reinspected every other year. The resulting report separates code-required work from optional upgrades, so you know exactly what a contractor needs to fix versus what’s a nice-to-have.

Once you have that report, two more MWPA programs can offset the cost of acting on it: the free Chipper Day program for curbside disposal of cut vegetation (2026 season runs April–November, pre-registration required), and the Home Hardening Matching Grant, which matches up to $5,000 in hardening costs like vents and gutter guards for residents who’ve completed an evaluation.

County resources

Fire Safe Marin is the county’s fire-safe council, running education programs (Harden Your Home, Create a Fire Smart Yard) and coordinating Firewise USA communities alongside MWPA’s funding and inspection programs. Between Fire Safe Marin’s guidance and MWPA’s free evaluations, chipper days, and matching grants, most homeowners can identify and partially fund their defensible space work before ever signing a contract — the contractors below are for the licensed labor those programs point you toward.

Frequently asked questions

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