
Owning or managing a rental property comes with many responsibilities, from routine maintenance to responding to unexpected emergencies. But what happens when a tenant's unit is affected by blood, bodily fluids, an unattended death, a traumatic injury, or another biohazard incident? These situations can create difficult questions about safety, property damage, tenant responsibilities, and potential liability. Understanding the importance of prompt biohazard cleanup for rental properties can help landlords and property managers protect their tenants, their properties, and their businesses.
What Is Considered a Biohazard in a Rental Property?
A biohazard is a biological substance that may pose a risk to human health. In a rental property, biohazard situations can include:
- Blood spills following a serious injury
- Bodily fluid contamination
- Unattended or undiscovered deaths
- Suicide or homicide scenes
- Crime scene contamination
- Hoarding situations involving biological waste
- Certain animal or pest contamination
- Sewage-related contamination
Not every accident requires professional remediation. However, when biological materials have contaminated a property, landlords and property managers should take the situation seriously.
California's bloodborne pathogen regulations define contaminated surfaces as those where blood or other potentially infectious materials are present or reasonably anticipated to be present. The regulations also establish specific requirements for cleaning and decontaminating contaminated work surfaces.
Why Biohazard Incidents Can Create Liability Concerns
A biohazard incident is not simply a cleaning problem.
Once a property has been contaminated, a landlord or property manager may need to consider several issues:
- Is the property safe for occupancy?
- Has the contamination been properly addressed?
- Could tenants or maintenance workers be exposed?
- Does the lease assign responsibility for certain damage?
- Was the incident caused by the tenant, a guest, or another person?
- Are contaminated materials still present?
- Does the property require specialized remediation?
- Is documentation needed for insurance or property records?
The specific answer to these questions depends on the circumstances and applicable law.
For California rental properties, state law generally requires landlords to maintain rental dwellings in a condition fit for human occupation. California Civil Code §1941.1 also addresses sanitary conditions and requires areas under the landlord's control to be kept clean and free from specified hazards.
That makes addressing serious contamination promptly an important part of responsible property management.
Don't Assume the Tenant Is Responsible for Everything
One common mistake is automatically assuming that the tenant is responsible for every cleanup expense. Responsibility can depend on how the contamination occurred and what the lease says. For example, there may be very different circumstances surrounding:
- An accidental injury
- A tenant-caused property damage incident
- An unattended death from natural causes
- A crime committed by someone outside the tenancy
- A biohazard caused by a maintenance problem
- A hoarding situation that developed over many years
California law also recognizes tenant obligations regarding cleanliness, waste disposal, and avoiding damage to the property. Under Civil Code §1941.2, certain landlord repair obligations can be affected when a tenant substantially violates specified duties and that violation contributes substantially to the problem.
Because these situations can be fact-specific, landlords should review their lease and consult a qualified attorney or other appropriate professional when legal responsibility is unclear.
Why Prompt Cleanup Matters
Once a biohazard incident has been discovered, delaying cleanup can create additional concerns.
Blood and other potentially infectious materials should be handled using appropriate precautions. OSHA requires contaminated work surfaces to be cleaned and decontaminated after contact with blood or potentially infectious materials in covered occupational settings.
California's own bloodborne pathogen standard similarly requires appropriate cleaning and decontamination of contaminated work surfaces and specifies that cleanup methods should be appropriate for the location, surface, and type of contamination.
For property managers, this reinforces an important principle: Property managers should treat biohazard cleanup for rental properties as specialized remediation, not ordinary housekeeping.
Why Regular Maintenance Staff May Not Be the Right Choice
A maintenance employee may be highly skilled at repairing plumbing, electrical systems, appliances, and other property issues, but they may not have the training or equipment necessary to handle biohazard contamination safely.
Cleaning up blood or other potentially infectious materials can involve exposure risks and specialized procedures. OSHA identifies exposure to blood and other potentially infectious materials as a workplace hazard and provides requirements for employers whose workers have occupational exposure.
For this reason, property managers should consider whether the person performing the cleanup has the appropriate training, protective equipment, procedures, and waste-handling capabilities.
What Professional Biohazard Cleanup for Rental Properties Can Include
A professional cleanup company can evaluate the affected area and determine the appropriate scope of work. Depending on the situation, biohazard cleanup for rental properties may involve:
1. Property Assessment
Technicians inspect the affected area to determine the extent of contamination and identify materials that may need specialized treatment.
2. Containment
The affected area may be isolated to reduce the possibility of spreading contamination to other parts of the property.
3. Removal of Contaminated Materials
Certain porous materials may not be suitable for ordinary cleaning and may need to be removed.
4. Cleaning and Disinfection
Technicians clean and disinfect affected surfaces using appropriate procedures and products.
5. Odor Treatment
Some incidents can leave persistent odors. Professional remediation may include specialized deodorization when necessary.
6. Proper Waste Handling
Contaminated materials and waste need to be handled and disposed of appropriately. OSHA guidance emphasizes appropriate containment and disposal practices for regulated contaminated materials in covered settings.
7. Final Assessment
The property can then be reviewed to determine whether the agreed-upon cleanup work has been completed.
Documentation Can Be Important for Property Managers
When a serious incident occurs, property managers should maintain appropriate records.
Depending on the circumstances, useful documentation may include:
- Date and time the incident was discovered
- Description of the affected area
- Photos taken before cleanup, when appropriate
- Communication with the tenant
- Communication with emergency personnel
- Insurance information
- Cleanup estimates
- Invoices
- Scope of work
- Documentation from the cleanup company
Good documentation can help property owners keep an organized record of what happened and what steps were taken afterward. It can also be useful when communicating with insurance professionals, contractors, owners, or legal counsel.
What Should a Property Manager Do After Discovering a Biohazard?
If you discover a potential biohazard in a rental property, consider the following steps:
1. Secure the area.
Keep tenants, visitors, pets, and unnecessary personnel away from the affected space.
2. Address immediate emergencies.
If someone may still require medical assistance or there is an active safety threat, contact the appropriate emergency services.
3. Avoid unnecessary contact with contaminated materials.
Don't allow untrained personnel to handle blood, bodily fluids, sharps, or other potentially hazardous materials.
4. Notify the appropriate parties.
Depending on the circumstances, this may include the property owner, tenant, insurance company, or other responsible parties.
5. Arrange a professional assessment when necessary.
A trained biohazard cleanup company can help determine the scope of contamination.
6. Document the response.
Maintain appropriate records of the incident and remediation.
How Bio-One of Sacramento Helps Property Managers
When a serious incident occurs in a rental property, property managers need a cleanup company that understands both the urgency of the situation and the importance of treating tenants with dignity.
Bio-One of Sacramento provides professional biohazard cleanup services throughout Sacramento and surrounding areas. Our team handles situations including unattended deaths, crime scenes, suicide cleanup, hoarding, and other biohazard situations. We also work with property managers and caregivers in challenging hoarding situations, providing customized cleanup plans, deep cleaning, sanitization, and removal of hazardous or contaminated materials.
Protecting Your Rental Property Starts With a Response Plan
Landlords and property managers can't predict when a biohazard incident will occur. What they can do is prepare for one.
Having a plan for biohazard cleanup for rental properties can help property managers respond quickly when an unexpected situation occurs.
Consider keeping the following information readily available:
- A local biohazard cleanup company's contact information
- Your property insurance information
- Emergency contact information for property owners
- Preferred contractors
- Tenant emergency procedures
- Documentation procedures
- A clear process for securing affected units
Being prepared can reduce confusion during an already stressful situation.
Helpful Resources
- California Civil Code §1941 – Landlord's obligation to maintain habitable premises
- California Civil Code §1941.1 – Conditions of habitability
- California Civil Code §1941.2 – Tenant responsibilities
Note: This article is intended for general educational purposes and should not be considered legal advice. Landlords and property managers should consult a qualified California attorney regarding specific liability, lease, tenant, or insurance questions.


