Fast, Reliable Biohazard & Crime Scene Cleanup Across Cotati
Biohazard and crime scene cleanup in Cotati typically costs between $1,500 and $8,000 depending on the scope, and a crew can usually be on site within 2 to 4 hours for emergencies. We know that when you’re calling about a trauma scene, an unattended death, or raw sewage backup in a crawl space, you don’t want a call center. You want someone who knows Cotati’s homes, its clay soils, and the specific ways moisture behaves on the Santa Rosa Plain. Call (855) 915-0646 and you’ll reach a live person, including Wade himself.
Why Wade’s Restoration of California Is Cotati’s Preferred Biohazard & Crime Scene Cleanup Company
Wade Ferris founded this company in 2007, and he still answers his own phone. That matters in Cotati, where homes off Old Redwood Highway and along East Cotati Avenue have their own set of problems: mid-century crawl spaces, slab foundations sitting on expansive clay, and a floodplain that doesn’t let go of water easily. We’re not a franchise with a rotating cast of subcontractors. The person you talk to is the person whose name is on the truck, and if something isn’t done right, he’s the one who comes back. That’s the Biohazard & Crime Scene Cleanup standard we’ve held for 29 years across Sonoma County.
Cotati residents call us because we show up fast and we don’t oversell. Every job gets a written scope before work starts. You’ll know what we’re doing, why we’re doing it, and what it costs before we begin. And we document everything with photos and moisture readings. If your insurance adjuster needs evidence, we talk to them directly. You don’t get stuck relaying information between two sides.
Our Biohazard & Crime Scene Cleanup Services in Cotati
Crime Scene Cleanup
When a crime scene needs to be cleaned, the priority is complete removal of blood, bodily fluids, and any biological material that poses a health risk. In Cotati, many homes built in the 1950s and 1960s have original wood subfloors and stem walls that absorb fluids beyond the visible surface. We don’t just disinfect the surface. We check what’s soaked through, because Cotati’s clay-heavy ground keeps crawl spaces damp and makes porous materials hold contamination longer than you’d expect.

Trauma & Unattended Death Cleanup
An unattended death in a Cotati home requires more than cleaning. Decomposition fluids migrate into subflooring, baseboards, and sometimes into wall cavities. We handle the full remediation: removal of affected materials, structural drying, disinfection, and odor neutralization. After an unattended death in a 1960s single-family home off Old Redwood Highway, our crew removed contaminated carpet and subfloor sections before finding moisture wicking through hairline cracks in the clay-swelled stem wall. We ran Dri-Eaz dehumidifiers for six days and scheduled an April re-inspection because the clay below the crawl space was still releasing enough vapor to keep relative humidity above 70%. That’s the secondary mold bloom pattern we see across Cotati, and it’s why we don’t walk away after the visible work is done.

Hoarding Cleanup
Hoarding situations in Cotati often mean years of accumulated material trapping moisture against walls and floors. We work with respect for the homeowner and the emotional weight of the process. Our crew removes debris, sorts salvageable belongings when asked, and then deals with what’s underneath: rodent droppings, mold, and often structural damage hidden beneath the piles. In Cotati’s flat, poorly drained neighborhoods, hoarded homes frequently have water damage at the base of exterior walls that was never visible until the clutter came out.

Blood & Bodily Fluid Cleanup
Bloodborne pathogens require more than bleach and elbow grease. We follow IICRC standards for containment, removal, and disinfection. In Cotati specifically, we pay extra attention to slab-on-grade foundations. When clay soil heaves during wet winters, hairline cracks open in the slab, and those cracks can wick contaminated liquids downward and later release odor and pathogens back into the living space. We check for those pathways on every blood cleanup job in Cotati.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands and Equipment We Use in Cotati
We run professional-grade equipment on every Cotati job, including Dri-Eaz dehumidifiers and air movers, and we carry Injectidry systems for drying inside wall cavities without tearing out drywall unnecessarily. Our crew is IICRC-certified and RIA-affiliated, which means the work follows the industry’s established standards for biohazard remediation. We don’t cut corners with rental-store equipment that’s underpowered for the job. In a Cotati crawl space with clay-fed humidity, the difference between pro-grade drying and a box fan is the difference between a clean house and a recurring odor problem nobody can explain.
Common Biohazard & Crime Scene Cleanup Problems We See in Cotati Homes
- Clay soil moisture re-contaminating cleaned areas. Cotati’s montmorillonite clay holds water for months. A crawl space that tested dry in January can be back at 70% relative humidity by April, which reactivates odors and mold spores you thought were gone.
- Flat lots holding sheet water against stem walls. After winter rain, water pools at the base of foundations across Cotati’s low-lying neighborhoods. That standing water wicks upward through concrete and wood, carrying pathogens back into areas we already disinfected if the drainage issue wasn’t addressed.
- Slab cracks from clay heave. Older Cotati homes on slab foundations develop cracks as the clay expands and contracts with the seasons. Those cracks are pathways for bloodborne pathogen residue to travel below the surface and re-emerge as a persistent smell.
- Underestimated crawl-space contamination. Homeowners often assume a biohazard scene is contained to the room where the incident happened. In Cotati, the real problem is frequently in the crawl space, where fluids seeped through subflooring and into the soil below, and where humidity keeps the contamination active for months.
Pricing for Biohazard & Crime Scene Cleanup in Cotati, CA
A typical trauma or unattended death cleanup in Cotati runs between $2,500 and $6,000. Blood cleanup after a medical emergency or accident usually lands between $800 and $2,000 depending on the affected area. Hoarding cleanup is the widest range: $1,500 to $10,000 or more, depending on the volume and whether structural repairs are needed. Tear gas cleanup in a Cotati home typically costs $700 to $1,800, though larger homes with HVAC contamination push higher. We provide a written estimate before any work starts, and every biohazard job includes photo documentation for your insurance claim. Call (855) 915-0646 for a free estimate specific to your situation.
We Also Serve Cities Near Cotati
Our crews serve Cotati and the surrounding Sonoma County communities daily. If you’re in Rohnert Park, Roseland, Petaluma, or Santa Rosa, the same owner-operator standard applies: Wade’s name on the work, live phone answering, and a written scope before anything starts.
Serving Cotati, CA - Our Local Coverage Area
We’re based in the Cotati area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Biohazard & Crime Scene Cleanup in Cotati
Cotati’s montmorillonite clay soils retain water for months after the surface appears dry, so a crawl space that reads 50% relative humidity in February can climb back over 70% by April as the clay releases stored moisture. That spike reactivates mold spores and odors from porous framing that was already disinfected. We schedule a follow-up moisture assessment 6 to 8 weeks after any biohazard remediation involving a crawl space, because Cotati’s soil doesn’t dry on a normal timeline. Call (855) 915-0646 if you’re seeing recurring odor in a previously cleaned area.
Homes from that era in Cotati were built with original wood-framed crawl spaces directly over moisture-retaining clay, which means fluids and pathogens move differently than they do in newer construction with vapor barriers. We check stem walls for hairline cracks opened by clay heave, inspect subflooring for wicking patterns, and run continuous moisture monitoring during and after cleanup. We also treat the crawl space itself, not just the living area above it, because in these older Cotati homes the crawl space is where contamination hides.
Clay soil expands when wet and shrinks when dry, which cracks slab-on-grade foundations throughout Cotati. Blood or bodily fluids that seep into those cracks can settle below the slab and release odor and biological residue back into the living space for months afterward. We inspect for slab cracks on every blood cleanup and treat the crack pathway itself, not just the visible surface. Ignoring that step in Cotati means a smell that keeps coming back no matter how many times you clean the floor. Call (855) 915-0646 and we’ll assess what’s actually going on underneath.
The core process is the same, but Cotati’s flat terrain and poor natural drainage mean tear gas residue that settles into porous exterior surfaces gets driven deeper by seasonal rains, and the residue can migrate into crawl spaces if foundation drainage is already compromised. We address the interior contamination first, then check exterior entry points and the crawl space for residue that rainwater may have pushed inward. Homes near the Laguna de Santa Rosa floodplain are especially prone to this secondary contamination pattern.
The contamination almost always returns, usually as an odor that starts in late spring when the clay soil releases its stored winter moisture. Fluids that soaked through subflooring are still present in the crawl space, and Cotati’s humidity keeps them biologically active far longer than a surface stain would suggest. Within weeks you’ll smell decomposition or see mold on framing, and you’ll need a full re-clean that’s more expensive than doing the crawl space right the first time. Call (855) 915-0646 for an honest assessment before you spend money on a surface-only cleaning.
Get Help Now in Cotati
If you’re dealing with a biohazard scene, trauma cleanup, or unattended death in a Cotati home, don’t wait. The longer biological material sits, the further it spreads into subflooring, framing, and the clay soil underneath. Call (855) 915-0646 now and you’ll reach a live person. Wade or one of his senior crew leads will answer your questions directly, tell you what to expect, and get a team headed to Cotati right away. Estimates are free, the work is documented in writing, and the 90-Day Done Right Promise applies to every biohazard and crime scene cleanup job we do.
Written by Wade Ferris, Owner at Wade’s Restoration of California, serving Cotati since 2007.