No one plans for a biohazard emergency. When San Anselmo residents and businesses need help, Four Month Blood Cleanse responds fast, works quietly, and treats every property โ and every person โ with respect.


Four Month Blood Cleanse has served San Anselmo and the broader San Anselmo, CA area with licensed, insured Biohazard response for years. We're not a call center that dispatches whoever's cheapest โ we're a dedicated crew that trains constantly and answers our own phones, 24 hours a day.
Our San Anselmo crew is local โ not a subcontractor pulled from three states away. That means faster arrival times, familiarity with local disposal regulations, and a team that's actually invested in this community.
We hold ourselves to a higher standard than the minimum required to get licensed in CA. Continuing education, refresher certifications, and internal quality checks are part of how we operate year-round, not just something we mention in an ad. San Anselmo families and businesses benefit from that consistency every time they call.
Biohazard cleanup isn't just about scrubbing a surface โ it's a regulated field with real health and safety requirements. Here's what stands behind every job we do in San Anselmo.
If you want to see credentials before we arrive, just ask when you call. Transparency about our process is part of how we've built trust with San Anselmo customers over the years.
Every job is different, but our process isn't. Whatever brought you to this page, our San Anselmo technicians are trained and equipped to handle it safely, thoroughly, and discreetly.
Blood, bodily fluids, or trauma scenes can't wait, and neither do we. Our San Anselmo emergency team is dispatched the moment you call, day or night, weekends and holidays included.
We treat every San Anselmo home like it's our own โ full sanitation, odor removal, and safe disposal so your family can return to a normal, safe space. We work around your schedule whenever possible.
San Anselmo business owners call us to get facilities back to code fast โ with full documentation for insurance, health department, and OSHA compliance. We can often schedule work outside business hours to limit disruption.
Not every job fits a checklist. When San Anselmo families or businesses face an unusual biohazard situation, our senior technicians step in with specialized tools and training built for exactly that scenario.
These are some of the most common situations San Anselmo residents and businesses call us about. If you don't see your exact situation listed, call anyway โ chances are we've handled it before.
When a death goes unnoticed for days or longer, biological material can affect flooring, subflooring, and even structural materials. Our San Anselmo crew removes affected materials safely and eliminates odor at the source, not just on the surface.
Families in San Anselmo facing this kind of loss deserve a crew that works quickly and quietly. We coordinate with law enforcement when needed and complete cleanup once the scene has been released.
Hoarding jobs in San Anselmo often involve biological hazards hidden under clutter โ mold, pest waste, and spoiled materials. We sort with care, separate salvageable items when asked, and sanitize the full property.
Raw sewage introduces serious pathogens into a San Anselmo home or business fast. We extract contaminated water, disinfect affected materials, and address any lingering odor or moisture risk.
When a property in San Anselmo has been exposed to an infectious illness, we perform full surface and airborne decontamination using medical-grade disinfectants to reduce risk for anyone who uses the space next.
Former drug production sites in San Anselmo leave behind chemical residue that ordinary cleaning can't remove. Our specialized team tests, treats, and clears the property according to CA remediation standards.
No hold music, no call centers overseas. Your call is answered locally and a technician is assigned right away.
Our San Anselmo crew arrives in an unmarked vehicle, dressed professionally, to protect your privacy from neighbors and passersby.
Before any work begins, we explain the process, the timeline, and the cost โ no surprises later.
Using hospital-grade disinfectants and proper PPE, we remove, clean, and sanitize every affected surface.
We handle chain-of-custody disposal and provide the paperwork your insurer or property manager may require.
Biohazard incidents happen everywhere โ homes, offices, vehicles, and public spaces. Here's how our San Anselmo team adapts to each one.
The most common call we get in San Anselmo โ bedrooms, bathrooms, garages, and everything in between, cleaned and sanitized with the family's privacy in mind.
We coordinate with tenants, landlords, and property managers across San Anselmo to resolve incidents quickly and keep other units unaffected.
Our San Anselmo commercial clients count on us to restore a space to safe, presentable condition with minimal disruption to operations.
Biohazard incidents inside a vehicle require specialized treatment of upholstery, carpeting, and hard-to-reach areas โ we handle San Anselmo vehicle jobs regularly.
Larger San Anselmo facilities call for a scaled-up crew and equipment set. We staff industrial jobs according to the size and complexity of the site.
We work with San Anselmo property managers and municipal contacts to decontaminate shared spaces safely and get them back in service quickly.
We know the cost of Biohazard services is a real concern. Here's what to expect when it comes to pricing, insurance, and paperwork.
If you have questions about how a specific insurance policy applies to your San Anselmo situation, mention it when you call โ our dispatcher can often give you general guidance right away.
We know you're not just comparing prices โ you're trusting someone to handle one of the hardest moments you'll deal with. Here's why San Anselmo residents choose us.
You'll know the cost before we begin. We work directly with insurance when possible to reduce your out-of-pocket expense, and we explain every charge in plain language.
Local dispatch means less time waiting and more time getting your property back to normal, with a crew that already knows the San Anselmo area.
We never discuss the details of a job outside what's necessary. Discretion is part of the service, not an upgrade you have to request.
We've worked with insurers for years and know how to document a job the way adjusters expect, which speeds up claim approval.
We don't consider a job finished until the space passes our own internal inspection standard, not just a quick visual check.
We treat every San Anselmo customer with the same patience and respect we'd want for our own families, from the first phone call to the final walkthrough.
"They arrived within the hour and handled everything with so much care. I couldn't have gotten through that day without them, and I'll never forget how patient they were with my questions."
"Our office had an incident and Four Month Blood Cleanse had a crew here within 90 minutes. They also handled the paperwork for our insurance, which saved us so much time."
"Pricing was exactly what they quoted on the phone โ no surprises on the final bill, which I really appreciated."
"Fast, professional, and genuinely kind. The crew never made me feel rushed even though I know they had other calls that day."
"Compassionate is the right word. They handled a hard situation for our family with real care, and I would recommend them to anyone in San Anselmo."
We're positioned to reach every corner of San Anselmo quickly โ from downtown properties to outlying neighborhoods. If you're near San Anselmo but outside the immediate metro area, call anyway; we cover a wider radius than most companies.
We proudly serve all zip codes throughout San Anselmo, CA, including: 94960 94978 94979, plus surrounding communities. If you're unsure whether we cover your address, call +1-844-401-0166 and we'll confirm immediately, usually within the same call.

Every hour matters. Our San Anselmo emergency line is live right now โ call and we'll walk you through what happens next.
๐ Call +1-844-401-0166 โ San Anselmo 24/7 Emergency Line