Wildfire smoke is one of the most damaging types of smoke contamination for homes — and one that Orange County residents deal with more frequently than most. The chemical composition of wildfire smoke varies significantly based on what is burning — a structure fire produces different VOCs than a grass fire, and a fire burning through neighborhoods produces a complex mixture including construction materials, plastics, and treated wood.

What Wildfire Smoke Leaves Behind

• Ash and soot on all surfaces, including inside cabinets and closets
• VOC deposits on walls, ceilings, and all soft goods
• HVAC contamination — particularly severe because systems often run during fire events, pulling contaminated air through ductwork
• Penetration into porous materials — drywall, insulation, wood framing in severe cases

The Remediation Sequence

• Turn HVAC off and replace filters immediately — stop the system from circulating contaminated air
• Surface cleaning of all hard surfaces — ash and soot must be removed before any treatment
• Soft goods assessment — heavily contaminated drapes and upholstery often need replacement
• Professional ozone or hydroxyl treatment
• Shellac primer on walls and ceilings
• HVAC duct cleaning — essential for any home where the system ran during the fire event

Insurance Considerations

Wildfire smoke damage may be covered by homeowner's insurance depending on your policy and proximity to the fire. Professional before-and-after air quality reports documenting the contamination and successful remediation are useful for insurance claims. Keep all receipts and documentation from professional services.