Two stages with different goals

It helps to think about the property in terms of two questions asked in order.

First question: is it safe? That is the work of biohazard cleanup. It deals with blood, bodily fluids and other biological contamination, and with the materials that absorbed them. Its finish line is a space where the contamination has been removed and the remaining surfaces have been cleaned and disinfected.

Second question: is it whole? That is the work of restoration and repair. It replaces what was removed and returns the room to normal use and appearance. Its finish line is a room that looks and functions as it did, or better.

Both matter, and both are legitimate trades. The confusion usually comes from the word "restoration", which some companies use for fire, water and mold work as well as rebuilding. In this guide, restoration means the repair and rebuild that follows biohazard cleanup. For an overview of the first stage, see what professional crime scene cleanup involves.

What biohazard cleanup includes

Nashville 24/7 Biohazard Disposals handles the first stage. That typically includes:

Assessing which rooms, surfaces and materials are affected
Setting up controls so work does not spread residue through the property
Removing contaminated porous materials, such as carpet, pad, mattresses, upholstered items and sections of drywall or subfloor
Cleaning and disinfecting remaining surfaces with EPA-registered disinfectants used according to label directions
Deodorizing affected areas once the source is gone
Packaging and disposing of contaminated material in line with applicable Tennessee and federal requirements
Providing photos, a written scope and an itemized invoice

It does not include building work such as installing new drywall, laying flooring, painting, replacing cabinets or repairing ductwork. We will tell you if your project will need a contractor for those, and which areas they will work on.

Our post-incident biohazard remediation page and multi-room biohazard remediation page describe this stage in different settings.

What restoration and repair include

Restoration covers the physical rebuild. Depending on what was removed, a contractor might:

Replace sections of subfloor and install new underlayment
Hang, tape and finish new drywall
Install new carpet, pad or hard flooring
Replace baseboards, trim and door casings
Prime and paint walls and ceilings
Replace cabinets, vanities or fixtures that were removed
Repair or replace ductwork, through a heating and cooling contractor
Handle any electrical or plumbing work disturbed during removal, through the appropriate trade

A general contractor may coordinate several of these, or you may hire individual trades. Some restoration companies also offer biohazard cleanup, and some biohazard companies only do cleanup. Either model can work, as long as you know who is responsible for each stage.

Where the handoff happens

The handoff point is the moment the affected area is clean, disinfected and free of contaminated material, with the structure exposed and ready for new materials. In a typical room, that looks like bare subfloor or concrete, open sections of wall where drywall came out, missing baseboards, and no remaining odor source.

Signs the space is ready to hand over

Contaminated materials have been removed and taken away. Exposed surfaces have been cleaned and disinfected. Any odor from the source has been addressed. The cleanup provider has given you a record of what was removed and from where. If any of these is uncertain, ask before the contractor starts.

The record matters for the contractor as well as for you. A list of removed materials and photos of the exposed areas helps them measure, quote and plan the rebuild without guessing. Our guide on documentation in biohazard remediation explains what those records usually contain.

Why the order matters

It can be tempting to save time by having a contractor start right away, or by covering a problem with new materials. Doing the stages out of order creates real problems.

New materials can trap contamination

New flooring laid over a contaminated subfloor, or paint over affected drywall, can seal material in place. If odor or staining appears later, the new materials may need to come out again, which costs more and causes more disruption.

Construction trades are not set up for bloodborne pathogen exposure

The OSHA Bloodborne Pathogens Standard applies to employers whose employees have occupational exposure to blood or other potentially infectious materials, and requires an exposure control plan, protective equipment and training. A drywall or flooring crew arriving at an uncleaned scene may not have those protections in place. It is fairer to everyone to hand them a clean space.

Disinfection needs exposed, cleaned surfaces

The CDC describes cleaning as the necessary first step before disinfection, because organic matter interferes with disinfectants. That is only achievable on surfaces that are open and reachable, which is another reason removal and disinfection come before any rebuild.

Insurance and documentation

If you are making an insurance claim, the insurer may want to see photos of the condition before and after cleanup, and before repair. Covering things too early can make the record incomplete.

Coordinating both stages, step by step

Wait for release
Police and, where involved, the medical examiner must finish and release the property. If anyone is hurt or in danger, call 911 first.
Call your insurer, if you have one
Ask whether your policy may cover cleanup, repairs or both, and what documentation they need. Don't throw away affected items before that conversation.
Arrange the biohazard assessment
The assessor maps the affected areas and gives you a written scope. See how a professional biohazard assessment works.
Complete the cleanup
Contaminated materials are removed, surfaces cleaned and disinfected, and waste taken away.
Collect the records
Get the photos, scope and itemized invoice. Share them with your insurer and contractor.
Bring in the contractor
The contractor measures the exposed areas, quotes the rebuild and schedules the work.
Finish with a general clean
Once repairs are complete, a routine clean of the whole property prepares it for use, sale or a new tenant. See crime scene cleanup versus general cleaning.

For property managers handling several parties at once, an apartment manager's guide to traumatic incident cleanup covers timing around tenants and turnover.

Questions to ask a repair contractor

Once the space is ready, these questions help you choose and brief a contractor:

Have you seen the cleanup records? Share the scope and photos so they understand what was removed and why.
Is your quote itemized? It should list materials and labor for each area so you can compare it with the removal list.
Do you need permits for this work? Some repairs may require local permits. Your local building department can confirm.
What license do you hold for a project of this size? In Tennessee, licensing depends on the project value and location, as described below.
Will you match existing finishes? Flooring, paint and trim matching affects how much may need replacing beyond the affected area.
How will you handle anything unexpected? If the contractor finds something that looks like remaining contamination, they should stop and call, rather than continue.

That last point is worth agreeing in advance. If a contractor uncovers an area that was not reached during cleanup, the right step is a recheck, not covering it up.

Tennessee contractor licensing in brief

Tennessee's Department of Commerce and Insurance explains when repair contractors need a state license. According to the Board for Licensing Contractors, a contractor's license is required for projects of $25,000 and up, counting materials, labor and profit. In counties that have adopted the state Home Improvement law, residential home improvement projects over $3,000 and under $25,000 require a Home Improvement license. The counties listed as having adopted it include Davidson, Robertson and Rutherford in Middle Tennessee, along with several elsewhere in the state. The Board notes that a license is required regardless of whether a permit is needed.

This is general information about repair contractors, not about biohazard cleanup, and the rules can change. Check the Board's current guidance at the Tennessee home improvement licensing page, and ask any contractor for their license details before work begins.

One company or two: weighing the options

You may find companies that offer both cleanup and rebuild, and others that focus on one. Neither is automatically better. Here is how the options compare.

Separate providers

Each stage done by people who focus on that work
You can choose a contractor you already know or trust
Clear line of responsibility for each stage
Needs a clean handoff and shared records

Points to watch either way

Unclear responsibility for areas found later
Rebuild starting before cleanup is confirmed complete
Scopes that overlap, so the same work is billed twice
Scopes with gaps, so nobody covers a particular area

Whichever route you take, line the two scopes up side by side. Every area on the removal list should appear on the rebuild quote, and nothing should appear on both. Our guide to evaluating a biohazard cleanup quote explains how to read the cleanup side.

How costs and insurance divide between the stages

Cleanup and repairs are usually priced and paid separately. Cleanup pricing is based on a written scope after an assessment and depends on the extent of contamination, materials, rooms, access and waste volume. Repair pricing depends on what needs replacing and the finishes you choose. See how pricing works for the cleanup side.

Some property insurance policies may cover some cleanup, some repairs, both or neither. Coverage depends entirely on the policy and the insurer, so ask early. We can provide photos, the written scope and an itemized invoice for your insurer. Read more in insurance questions to ask after a biohazard incident.

If the incident was a crime in Tennessee, the Criminal Injuries Compensation program may cover up to $3,000 for cleaning and removal of materials when the crime occurred in the victim's or an eligible relative's home. Repairs and replacement are not covered by that benefit, which is one more reason to keep the two stages clearly separated on paper. The program is a payer of last resort and has reporting and filing deadlines, so check with the Tennessee Department of Treasury about eligibility.

If you need cleanup arranged quickly, our Order Online page involves a $2,000 initial deposit. That deposit is not the final price, and it does not mean work will start by a particular time.

How the split looks in different properties

Owner-occupied homes

Families often want to know how long they will be out of a room. The cleanup stage and the rebuild stage each take their own time, and scheduling the contractor once the cleanup scope is known helps reduce the gap between them. See residential biohazard cleanup.

Rental properties

Landlords usually manage both stages to get a unit ready for the next tenant, and need clear records for their own insurer and files. Landlord biohazard cleanup services covers that perspective.

Businesses and hotels

Commercial owners often need to schedule both stages around operating hours and may have facilities staff or preferred contractors already. See commercial biohazard cleanup.

Estate properties

When a property is being prepared for sale after a death, the executor or family may want cleanup done promptly and repairs scheduled around the sale. Estate and property death cleanup explains how we work with families in that position.

Tasks that sit between the two stages

A few jobs fall near the boundary, and it helps to agree in advance who will handle each one so nothing is missed or done twice.

Sealing exposed subfloor and framing

After removal, cleaning and disinfection, exposed wood is sometimes coated with a sealing primer made to block residual odor before new materials go down. This is often done at the end of the cleanup stage, because it relates directly to the contamination. Confirm whether it is in the cleanup scope or expected of the contractor.

Ductwork and vents

If odor or residue reached a heating and cooling system near the affected area, the cleanup provider can flag it and clean accessible surfaces such as vent covers. Repairs or replacement of ductwork belong to a heating and cooling contractor.

Cabinets, vanities and built-ins

A cabinet base may be removed during cleanup to reach the floor beneath it. Reinstalling or replacing it is repair work. If a built-in item is removed, the records should say so, so that the contractor can price its replacement.

Personal contents

Belongings that were not contaminated, but sat in the room during the work, may need ordinary cleaning before they return. That is separate from both biohazard cleanup and rebuild, and families often handle it themselves or through a contents cleaning service.

Areas found during repairs

If a contractor opens a wall or lifts flooring next to the treated area and finds something that looks like contamination, that is a cleanup task again, even in the middle of the repair stage. Stop, call, recheck, then continue.

Writing these items into one or other scope, by name, is the simplest way to prevent gaps. The full course of a project, from the first call through completion, is set out in understanding the professional cleanup process from inquiry to completion.

How the two stages fit together

Biohazard cleanup makes a property safe. Restoration makes it whole. Cleanup removes contaminated materials, cleans and disinfects what remains, addresses odor and handles regulated waste. Repair replaces flooring, drywall, trim and paint. The handoff comes when the area is clean, disinfected and exposed, with records that show what was removed.

Keeping the stages in order avoids trapping contamination under new materials, protects construction crews, keeps insurance records clear and prevents paying for work twice. Line the two scopes up, ask your contractor to stop and call if they find anything unexpected, and confirm contractor licensing under Tennessee's rules.

Nashville 24/7 Biohazard Disposals handles the cleanup stage for homes, rentals and businesses across Middle Tennessee, and will tell you if your project will need a contractor afterward. Call (615) 513-5112 any time, or reach us through our contact page.

Questions people ask

Do you rebuild or repair after the cleanup?

No. We remove contaminated materials and clean, disinfect and deodorize the affected areas. Repairs such as new drywall, flooring and paint are generally a contractor's job. We will tell you if your project needs one and provide records they can use.

Can my contractor start before the cleanup is finished?

It is better not to. Rebuilding over contaminated materials can trap them, and construction crews are not usually equipped for bloodborne pathogen exposure. Wait until the affected areas are clean, disinfected and cleared of contaminated material.

Will insurance pay for both cleanup and repairs?

It depends entirely on the policy and the insurer. Some policies may cover some of either stage, and some may not. Ask your insurer early, and keep the records for cleanup and repairs separate.

How do I know the space is ready for the contractor?

Contaminated materials should be removed and gone, exposed surfaces cleaned and disinfected, the odor source addressed, and a written record provided. If anything is unclear, ask the cleanup provider before the contractor begins.

What if my contractor finds more contamination during repairs?

They should stop work in that area and contact you. The cleanup provider can then recheck and address it before rebuilding continues. Agreeing this with your contractor in advance avoids problems.

Does a restoration company do the same work as a biohazard company?

Some restoration companies offer biohazard cleanup as a separate service, and some do not. The two kinds of work have different goals and different worker-protection requirements, so ask any company which stages it will handle.

How long is the gap between cleanup and repairs?

It depends on the contractor's schedule, any insurance approvals and the materials you choose. You can shorten the gap by contacting a contractor once the cleanup scope is known, so they can see the removal list early and plan. Cleanup timing itself is confirmed by phone and can depend on distance and the size of the job.

Does a repair contractor in Tennessee need a state license?

It depends on the project value and the county. Tennessee requires a contractor's license for projects of $25,000 and up, and certain counties, including Davidson, Robertson and Rutherford, require a Home Improvement license for residential projects over $3,000 and under $25,000. Check current rules with the state board.