No one plans for a biohazard emergency. When Walnut 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 is a fully licensed and insured Infectious Disease Decontamination company serving Walnut, CA and the surrounding area. Every technician on our crew is trained, background-checked, and certified to handle biological hazards safely โ and to treat the people affected by them with dignity.
Because our team is based near Walnut, we're not waiting on a technician to drive in from out of state. We know the local roads, the local disposal facilities, and the local regulations โ and that translates into a faster, smoother job for you.
Beyond the technical side, our Walnut team understands that a biohazard call almost always comes during a stressful, sometimes traumatic moment. That's why every technician goes through communication training in addition to safety certification โ so you get a crew that's skilled with equipment and calm with people.
Walnut customers deserve to know exactly what training and equipment a crew is bringing into their home or business. Here's the short version.
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 Walnut customers over the years.
Every job is different, but our process isn't. Whatever brought you to this page, our Walnut 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 Walnut emergency team is dispatched the moment you call, day or night, weekends and holidays included.
We treat every Walnut 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.
We work with property managers, offices, warehouses, and industrial facilities across Walnut to resolve biohazard incidents without disrupting operations any longer than necessary. Our team coordinates directly with facility staff from start to finish.
Not every job fits a checklist. When Walnut 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 Walnut 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 Walnut crew removes affected materials safely and eliminates odor at the source, not just on the surface.
Families in Walnut 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 Walnut 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 Walnut home or business fast. We extract contaminated water, disinfect affected materials, and address any lingering odor or moisture risk.
When a property in Walnut 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 Walnut 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 Walnut 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.
Our team follows OSHA and CA health protocols to fully decontaminate the space, not just clean the surface.
All biohazard waste is transported and disposed of through licensed facilities, with documentation provided for your records.
Biohazard incidents happen everywhere โ homes, offices, vehicles, and public spaces. Here's how our Walnut team adapts to each one.
The most common call we get in Walnut 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 Walnut to resolve incidents quickly and keep other units unaffected.
Our Walnut 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 Walnut vehicle jobs regularly.
Larger Walnut 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 Walnut property managers and municipal contacts to decontaminate shared spaces safely and get them back in service quickly.
We know the cost of Infectious Disease Decontamination services is a real concern. Here's what to expect when it comes to pricing, insurance, and paperwork.
Every Walnut customer gets the same level of documentation, whether the job is billed to insurance or paid directly. That consistency protects you either way.
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 Walnut 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.
Because we're locally positioned near Walnut, our average arrival time beats companies dispatching from farther away. That speed matters when biological hazards are involved.
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 Walnut customer with the same patience and respect we'd want for our own families, from the first phone call to the final walkthrough.
"Professional from the first phone call to the final walkthrough. You'd never know anything happened in that room, and the whole process took less time than I expected."
"Discreet, quick, and thorough. Neighbors never even noticed the crew was there, which was exactly what we needed."
"They treated my mother's home with so much respect during a difficult time. I'm grateful for their patience and their kindness."
"They coordinated directly with my insurance adjuster which saved me hours of phone calls and a lot of stress."
"You could not tell anything had happened once they finished. The smell, the stains, everything โ gone, and they even followed up a few days later."
Our Walnut dispatch covers the full metro area, including nearby suburbs and rural properties throughout Walnut, CA. We staff our crews specifically to keep response times consistent across the whole coverage area.
Our Walnut coverage area includes the following zip codes: 91789 91788 โ and nearby areas throughout Walnut, CA. One call confirms your coverage and gets a crew moving toward your address right away.

One call to +1-844-401-0166 gets a certified Walnut technician moving toward your property, 24 hours a day, 7 days a week.
๐ Call +1-844-401-0166 โ Walnut 24/7 Emergency Line