Every Angeleno who has lived through the last few fire seasons understands that wildfire is no longer a distant phenomenon. The Palisades fire, the Eaton fire, the Woolsey fire, and a rolling series of smaller brush fires from Griffith Park through the Santa Monica Mountains have all deposited smoke residue into homes across the basin, often miles from any active flame line. The residue is invisible, persistent, and genuinely hazardous to breathe. This is a practical checklist for post-smoke cleaning in an LA home, with the steps professional remediation teams actually follow and the ones homeowners can handle themselves.
What wildfire smoke deposits in your home, and why it matters. Modern urban-interface wildfires are not just burning trees. They are burning cars, homes, electronics, old insulation, plumbing, and paint. The smoke plume contains combusted plastics, heavy metals, VOCs, PAHs, and fine particulates measured in PM2.5 and PM0.1 sizes. These particles are small enough to pass through standard window seals and settle on every horizontal and vertical surface inside your home. Once settled, they continue to off-gas for weeks to months, which is why smoke smell returns on humid days and every time the HVAC kicks on after a seemingly successful cleaning.
Assess before you clean. Start with a walk-through. Look for visible soot on windows and window sills, gray-brown film on curtain hems and lampshades, any yellowing on white walls, and any lingering odor in closets and closed rooms. Test soft goods. Press a white cotton cloth gently against upholstery, curtains, and rug pile. If the cloth picks up any discoloration, you have residue. Check your HVAC filter. If it was in place during the event and is more than two weeks old, it is saturated. Check indoor AQI with a PM2.5 monitor if you have one. If PM2.5 reads above 12 micrograms per cubic meter on a clean-air day outside, you have indoor residue driving the number up.
HVAC first, always. This is the most commonly skipped step in DIY smoke cleaning and it is the single most important one. Your HVAC ran during or immediately after the smoke event almost certainly. Every time it cycles, it recirculates whatever is in it. Replace all filters with MERV 13 or higher. MERV 8, the default in most LA homes, does not capture fine smoke particulate. If your home had direct smoke exposure, schedule professional duct cleaning within two weeks of the event. A duct cleaning for a typical LA single-family home runs $400 to $800 and genuinely pays for itself. Skipping it means you are spraying residue back into every room you just cleaned.
Top-down cleaning order. Gravity is on your side only if you respect it. Always clean ceilings and upper walls first, then mid-height surfaces, then low surfaces, then floors last. Cleaning floors first and then dusting shelves undoes your own work. For ceilings and upper walls, use a dry chemical sponge, sometimes called a soot sponge. It is a specific product designed to lift soot without smearing, and it is available at any professional cleaning supply. Do not use water or cleaner on the first pass. Water drives soot deeper into paint and leaves streaks.
Room-by-room post-smoke checklist.
Kitchen.
- Wipe all upper cabinets, tops of cabinets, and cabinet interiors with dry sponge first, damp microfiber second
- Clean range hood exterior and filter, as smoke residue bonds with existing grease
- Run dishwasher empty with cleaning tablet, then wipe door seals
- Clean refrigerator exterior and the seal around the door
- Wipe countertops with pH-neutral cleaner, including under small appliances
- Clean interior windows and sills with a glass cleaner, following a dry dust pass
- Wipe light fixtures and replace bulbs if residue has baked onto them
Living areas.
- Vacuum upholstery with a HEPA attachment, every cushion removed and turned
- Steam clean rugs or schedule professional steam extraction for larger area rugs
- Wipe electronics carefully with an anti-static cloth; soot bonds to screens
- Dust all picture frames, tops of picture frames, bookshelves, and books
- Wipe window sills, blinds slat by slat, and curtain rods
- Wash or dry clean curtains; curtains hold smoke residue longer than almost anything else in the home
- Vacuum baseboards and wipe with a damp microfiber
Bedrooms.
- Wash all bedding in hot water with a cup of white vinegar added to the detergent
- Vacuum mattresses with a HEPA vacuum and consider a professional mattress clean for heavy exposure
- Wipe nightstands, headboards, lamp bases, and dresser tops
- Wipe inside closets, including shelves, rods, and the back wall
- Shake out or vacuum decorative pillows and throws
- Replace dresser liners if residue is visible
Bathrooms.
- Wipe all surfaces with a damp microfiber to capture settled particulate
- Replace the shower curtain liner if exposure was significant
- Run the exhaust fan and clean the cover; wildfire ash embeds in exhaust fan vents
- Check the inside of the medicine cabinet; soot settles there surprisingly fast
Soft goods specifically. Smoke residue embeds deepest in soft materials. Linens, curtains, clothing, and bedding should be washed with a cup of white vinegar added to the normal detergent load. Vinegar neutralizes odor molecules rather than masking them. Dry clean-only items need to be explicitly flagged for smoke remediation when you drop them off; standard dry cleaning does not address smoke residue. Upholstered furniture and rugs need professional steam cleaning with HEPA extraction. A slipcover is not a substitute.
AQI thresholds to plan cleaning around. Do not open windows for ventilation until outdoor AQI is below 50. Run HEPA purifiers continuously when AQI is above 100. Cleaning a smoke-exposed home while outdoor AQI is still elevated actively contaminates the home further, because any cleaning pass kicks particulate back into the air where it can mix with incoming outside air. Use the AirNow app or the AQMD website for real-time LA readings.
Insurance and documentation. Most California homeowners policies cover smoke damage remediation even when the fire itself never reached your property. Document everything. Photograph every room with timestamps before cleaning starts. Keep receipts for cleaning services, air purifiers, HEPA filters, and any soft goods you have to replace. Document medical visits related to smoke exposure. File the claim within the window your policy specifies, typically 30 to 60 days. Get a written scope of work from any professional remediation company you hire, because adjusters request specifics and providing them up front speeds the claim.
When to call a professional. Light exposure from a distant fire can usually be handled DIY with HEPA vacuuming, HVAC filter changes, and a careful top-down clean. Heavy exposure, close-proximity fires, HVAC systems that ran during the event for more than a day, or any home where PM2.5 readings stay elevated after a DIY cleaning pass need professional remediation. The equipment matters. Professional teams use industrial HEPA air scrubbers, hydroxyl generators that neutralize odor molecules at the chemical level, and thermal foggers for porous surfaces. Consumer-grade products cannot match this, and incomplete remediation leaves residue that returns the moment conditions change.
LA-specific fire context to keep in mind. If you live in any zip code from the Palisades through Santa Monica through Brentwood through West LA, assume you had Palisades fire exposure in 2025 until proven otherwise. If you live in Altadena, Pasadena, Sierra Madre, or Arcadia, assume Eaton fire exposure. If you live in any hillside neighborhood from Griffith Park through Los Feliz through Silver Lake through Laurel Canyon, you are in a brush-proximity zone and should assume recurring exposure from smaller fires even between big events. Periodic post-smoke cleaning every spring, coinciding with the end of fire season, is a reasonable part of LA home maintenance.
Frequently asked questions.
Q: How long does smoke residue stay in a home if left alone? A: Months to years. It binds into porous materials and off-gasses slowly. It does not simply air out over time the way most homeowners expect.
Q: Will ozone treatment work? A: Ozone generators can help with residual odor in unoccupied spaces, but they are unsafe for occupied homes and they do not remove residue, only neutralize odor. They are a supplement, not a substitute.
Q: Does wildfire smoke affect stucco exteriors? A: Yes, and stucco holds residue longer than painted surfaces. If your exterior smells after a fire, professional exterior washing is warranted.
Q: Should I replace my HVAC filters more often even between fire seasons? A: Yes. In LA, upgrading from MERV 8 to MERV 13 and changing filters every 60 days is a good default for wildfire-prone neighborhoods.
Q: Is a $150 HEPA purifier enough? A: For small rooms, yes. For whole-home coverage after a smoke event, you typically need multiple units or a higher-capacity professional-grade unit during active remediation.
Q: Can a cleaning service document my smoke damage for insurance? A: Yes. A professional scope of work with before-and-after photos is commonly accepted by California insurers. The Detail Crew provides written documentation on smoke remediation jobs.
Q: How do I know cleaning worked? A: Indoor AQI and PM2.5 should drop back to normal levels and stay there. A PM2.5 monitor running 30 days after remediation is the best confirmation.
If your home was affected by any recent LA wildfire, do not wait. The smell does not leave on its own, and the health cost of ignoring residue compounds the longer you wait. [Book a smoke remediation assessment](/book) with The Detail Crew, review our [pricing and services](/pricing), see our [full service list](/services), or check coverage in [Pacific Palisades](/areas/pacific-palisades), [Malibu](/areas/malibu), [Pasadena](/areas/pasadena), [Santa Monica](/areas/santa-monica), and [Brentwood](/areas/brentwood). Your lungs and your home are worth getting this right.