Four Month Blood Cleanse sends certified Infectious Disease Decontamination technicians to San Mateo properties around the clock. We handle the scene so you and your family don't have to.


We built Four Month Blood Cleanse around one idea: when a biohazard emergency happens, families and business owners in San Mateo deserve a team that shows up fast, works cleanly, and communicates honestly the whole way through. Our technicians are certified in bloodborne pathogen handling, OSHA safety standards, and proper biohazard disposal.
Because our team is based near San Mateo, 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 β and that translates into a faster, smoother job for you.
Beyond the technical side, our San Mateo 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 β so you get a crew that's skilled with equipment and calm with people.
San Mateo customers deserve to know exactly what training and equipment a crew is bringing into their home or business. Here's the short version.
We're happy to walk you through our certifications and process over the phone before you commit to anything β call +1-844-401-0166 and ask any question you have about how we work in San Mateo.
Every job is different, but our process isn't. Whatever brought you to this page, our San Mateo 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 Mateo emergency team is dispatched the moment you call, day or night, weekends and holidays included.
We treat every San Mateo home like it's our own β 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 Mateo business owners call us to get facilities back to code fast β with full documentation for insurance, health department, and OSHA compliance. We can often schedule work outside business hours to limit disruption.
Some situations call for specialized equipment and protocol. Our San Mateo team handles the harder cases other companies turn away, including jobs that require extended containment or extra sanitation cycles.
These are some of the most common situations San Mateo residents and businesses call us about. If you don't see your exact situation listed, call anyway β 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 Mateo crew removes affected materials safely and eliminates odor at the source, not just on the surface.
Families in San Mateo 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 Mateo often involve biological hazards hidden under clutter β 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 Mateo home or business fast. We extract contaminated water, disinfect affected materials, and address any lingering odor or moisture risk.
When a property in San Mateo 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 Mateo 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.
We show up quickly and quietly β no branded trucks parked outside broadcasting what's happening.
We assess the scene, contain the affected area, and walk you through exactly what the job will involve before we start.
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.
Four Month Blood Cleanse isn't limited to one type of property. Whatever the setting, our San Mateo crew brings the same certified process and equipment.
The most common call we get in San Mateo β 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 Mateo to resolve incidents quickly and keep other units unaffected.
Our San Mateo 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 β we handle San Mateo vehicle jobs regularly.
Larger San Mateo 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 Mateo property managers and municipal contacts to decontaminate shared spaces safely and get them back in service quickly.
Paying for an unexpected biohazard cleanup shouldn't add to your stress. Here's how we make the financial side of the process as simple as possible for San Mateo customers.
If you have questions about how a specific insurance policy applies to your San Mateo situation, mention it when you call β our dispatcher can often give you general guidance right away.
We know you're not just comparing prices β you're trusting someone to handle one of the hardest moments you'll deal with. Here's why San Mateo residents choose us.
We quote the job before we start β no inflated invoices, no surprise line items after the work is done. Our San Mateo estimates reflect the actual scope of the job, not a guess.
Because we're locally positioned near San Mateo, our average arrival time beats companies dispatching from farther away. That speed matters when biological hazards are involved.
Unmarked vehicles, plain uniforms, and a no-questions-asked approach with neighbors β your privacy matters to us on every San Mateo call.
We've worked with insurers for years and know how to document a job the way adjusters expect, which speeds up claim approval.
If any area doesn't meet our sanitation standard, we return and correct it at no extra charge β no questions asked.
We treat every San Mateo 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 β 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 Mateo."
Four Month Blood Cleanse proudly serves San Mateo and the surrounding communities across San Mateo, CA with the same fast, certified Infectious Disease Decontamination response. Whether you're downtown or in an outlying neighborhood, the process and the standard of work stay the same.
We proudly serve all zip codes throughout San Mateo, CA, including: 94404 94401 94402 94403 94497, 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.

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