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Knowles LumberCraft Construction is a Marin County-based, CSLB-licensed contractor dedicated exclusively to wildland fire home hardening — the physical upgrades that stop a wildland fire's embers, radiant heat, and flame contact from igniting a home. We do not chase general remodeling work. Every project we take on targets one goal: making a structure survive a wildland fire event. Our work centers on Zone Zero, the first five feet surrounding a home, which Cal Fire and fire science research identify as the single most critical area because that is where the vast majority of wildland fire structural ignitions actually begin.
This site serves Marin County homeowners living in High and Very High Fire Hazard Severity Zones — the wildland-urban interface communities of Mill Valley, Fairfax, San Anselmo, San Rafael, Novato, Tiburon, Sausalito, Corte Madera, Kentfield, Ross, Lagunitas, Woodacre, and Marin City. It is built for two groups in particular: homeowners preparing to sell who must satisfy California's AB-38 defensible-space and home-hardening disclosure requirements, and homeowners who have received a local fire inspection report and need a qualified contractor to complete the required wildland fire remediation. Visitors can request a free on-site Zone Zero assessment, submit a fire inspection report for a no-cost review, and scope the specific hardening work — ember-resistant vents, non-combustible fencing, fire-rated decking, and fiber cement siding — that brings a property into compliance with Cal Fire and local fire district standards.
The company is led by a builder with 27 years in the National Park Service and emergency management — a background in wildland fire response and emergency operations that informs how each property is assessed and hardened. Knowles LumberCraft Construction priority-ranks the most dangerous wildland fire exposures first, scopes only the hardening work that actually reduces ignition risk, and stands behind every project with proper CSLB licensing (#1142420) and documentation.