
The Remnant Difference

Typical cleanout crew
Standard Cleaning
Standard cleaning only treats visible surfaces, leaving hidden pathogens and odors trapped deep within.

Remnant
Drug Decontamination
We eliminate biohazards at the molecular level, using advanced ATP testing to guarantee 100% decontamination.
From San Francisco to Daly City, South San Francisco, San Mateo, Oakland, and Sausalito, a technician is never far from the call.
How a Drug Incident Inside a San Francisco Property Affects the Building
The San Francisco Office of the Chief Medical Examiner reported 589 accidental overdose deaths through the first 11 months of 2024, down from 760 over the same period in 2023, with the heaviest concentration historically in the Tenderloin. That is the context our crews respond into. The property side of the situation runs separately from the human side, and the contamination it leaves behind is invisible on day one.
Fentanyl absorbs into drywall paper and carpet padding. Methamphetamine settles into HVAC ductwork and porous surfaces. In San Francisco's older Victorian and Edwardian housing stock, the original redwood and plaster construction can hold residue in ways that newer materials do not, which often means a more extensive treatment sequence. The cleanup needs to be done by a properly registered company so the waste tracking runs from collection through final disposal.
Our Step-by-Step Drug Cleanup Process

Site Assessment
A technician evaluates the property, reviews any law enforcement documentation, and identifies the type and scope of contamination.

Containment Setup
Sheeting and air filtration close off the affected space so airborne particles and residues stay contained during the work.

Soft Good Removal
Mattresses, upholstery, carpet, padding, and porous items that have absorbed residue are extracted and bagged for disposal.

Surface Decontamination
Walls, ceilings, hard flooring, and fixtures are washed with chemistry suited to the specific drug residue present.

HVAC and Air Treatment
Ductwork is cleaned or replaced where needed, and HEPA scrubbers run until airborne contamination is cleared.

Clearance Testing
Surface samples are pulled and analyzed to confirm levels meet California decontamination standards.
How a Drug-Affected San Francisco Property Gets Tested and Cleared
The first step is sampling. The crew identifies what substance is present and how far the contamination has spread through the property before any cleaning chemistry is applied to a surface, because fentanyl and methamphetamine require their own respective chemistry, and a generic treatment will not pass a retest.
Through the cleaning phase, the protective layer is chemical-vapor-rated full-face respiration, sealed Tyvek, and doubled nitrile, with the affected portion of the property under sealed negative-pressure containment for the duration. For San Francisco's older Victorian and Edwardian housing stock, the treatment sequence factors in how original redwood and plaster materials hold residue, which often requires a longer or more layered treatment pass than newer materials would. Post-cleaning samples confirm the result. The complete file, sampling data, post-treatment numbers, disposal chain of custody, comes back to the property owner.

Who Calls Us for Hoarding Cleanup?
Property owners and landlords needing site containment setup in San Francisco
Families and homeowners requiring isolation of contaminated spaces during cleanup
Commercial property managers securing affected units to prevent cross-contamination
Estate representatives and HOAs preparing properties for safe remediation
OSHA
Certified
24/7
Response
99.9%
Cleanup Success Rate
"We discovered drug residue in our San Francisco, CA rental property and needed immediate scene containment. The team handled the drug cleanup professionally and restored our peace of mind."
Still Have Questions?
Are you certified to handle drug cleanup and fentanyl decontamination in San Francisco, CA?
Yes. Remnant Biohazard is fully certified, trained, and compliant with California state standards to perform drug residue remediation and fentanyl decontamination throughout San Francisco.
How much does drug cleanup cost in San Francisco, CA?
Drug cleanup costs in San Francisco depend on the square footage, the specific substance involved, and how deeply contamination has penetrated materials like drywall, flooring, and ductwork. A localized surface treatment typically costs a few thousand dollars, whereas extensive fentanyl or meth lab remediation requiring structural removal and lab clearance testing runs higher. We conduct a thorough site assessment to provide a clear, upfront scope of work, and we coordinate directly with your insurance carrier to manage eligible claims efficiently.
How long does a drug cleanup or meth lab decontamination project take in San Francisco, CA?
Most localized drug residue cleanups in San Francisco take one to three days, while full-scale structural remediation or certified meth lab decontamination typically requires one to two weeks, including state-mandated clearance testing.
Does homeowners insurance cover the cost of drug cleanup or meth lab decontamination in San Francisco, CA?
Yes. In most cases, standard homeowners and commercial property insurance policies cover the cost of drug cleanup and meth lab decontamination. Remnant Biohazard works directly with your insurance carrier to manage the claims process, handle documentation, and ensure all remediation meets California compliance standards.
