What home hardening actually means

August 12, 2026, 5 minute read

Home hardening describes changes to the building itself that make it harder for a wildfire to take hold. It is separate from defensible space, which is about the landscape around the building. Both matter, and they are measured differently.

The parts of the house that get named

• Roof covering and the gaps where the covering meets the edge
• Vents, and the mesh that covers them
• Eaves and soffits
• Windows and exterior doors
• Exterior walls and the base of the wall where it meets the ground
• Decks, attached structures and fences that touch the house

These are the places embers collect. A fire does not usually arrive as a wall of flame at the front door. It arrives as burning fragments carried on wind, landing in a gutter, a vent, or a pile of needles at the base of a wall.

Why insurers ask about them

California insurers writing property coverage in wildfire exposed areas are required to recognise mitigation at the property level. That means the specific measures at your address are part of how your property is assessed, so having a written record of what is in place is worth having before the conversation starts.

The Home Hardening Score walks these measures one at a time and produces that record. It is a self-assessment, not an inspection, and it does not tell you what any measure is worth under a carrier's own rating plan. Only your carrier can tell you that.

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