Can I just clean mold with bleach?

For a small patch of surface growth on a hard, non-porous surface, routine cleaning can be appropriate, and CDC clean-up guidance covers doing that safely. What bleach cannot do is remove growth from inside porous material such as drywall or reach the water source that caused it, and disturbing growth without containment can spread spores through the house.

Do I need a mold test before remediation?

Not to decide whether visible mold should be removed. Neither CDC nor EPA recommends routine sampling for that purpose, because visible growth plus a moisture source is already the answer. Testing earns its cost in three situations: suspected hidden growth, identifying the extent of contamination, and post-remediation verification.

Why does mold come back after remediation?

Almost always because the water did not stop. A roof detail that leaks only in driving rain, a slow supply-line weep behind a vanity, a condensation problem from undersized ductwork, or chronic high indoor humidity will regrow mold on new drywall as readily as on old.

Is my mold damage covered by insurance?

It depends on the policy and on the cause. Many Florida homeowners policies cover mold that results from a sudden covered water loss, often with a specific dollar sublimit, while excluding mold caused by long-term seepage or deferred maintenance. Your declarations page and mold endorsement are what control it.

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Glossary

Mold

Mold Remediation

Correcting the moisture problem and physically removing mold growth and contamination, as opposed to killing or covering what is visible.

The short version

Remediation always starts with the water source. EPA guidance is explicit that mold is controlled indoors by controlling moisture indoors.
The mold is removed physically. Biocides and coatings are not a substitute for source removal.
Dead mold still causes reactions, so "killing" mold and leaving it in place is not a remediation.
EPA guidance recommends limited containment for contaminated areas roughly between 10 and 100 square feet.
Neither CDC nor EPA recommends routine sampling to decide whether visible mold should be removed.

What it actually means

Mold is not a contaminant that arrives from outside and can be excluded; spores are present in essentially all indoor air. What makes growth possible is water. EPA states the point plainly: mold growth is controlled indoors by controlling moisture indoors. So a remediation that does not find and fix the leak, the humidity problem, or the failed flashing is not a remediation, it is a delay.

The second principle is source removal. The IICRC S520 standard frames remediation as returning contaminated areas to a normal fungal ecology, and the way that is achieved is by physically removing the growth and the contaminated material, not by treating it in place. This matters because the health effects associated with damp indoor environments are not limited to living mold. Both CDC and EPA guidance treat dead spores and fungal fragments as still capable of causing reactions, which is why "we sprayed it" is not an outcome.

The third is containment proportional to the job. EPA remediation guidance scales the response to the size of the contaminated area, recommending limited containment in the range of roughly 10 to 100 square feet and full containment above that. That scaling is what keeps a bedroom remediation from turning the rest of the house into a second job.

What it looks like on a real job

A defensible remediation runs in a fixed order: find and stop the moisture, set containment with negative pressure and HEPA filtration, remove the contaminated porous materials into sealed bags, HEPA vacuum and detail clean the remaining surfaces, dry the assembly to a dry standard, then verify. Only after verification does the rebuild start.

In Florida there is a licensing layer on top of that. Mold assessment and mold remediation are separately licensed activities under Chapter 468, Part XVI of the Florida Statutes, and the statute bars a company from remediating a structure it assessed within the previous twelve months, and from assessing one it remediated. Practically, that means your inspection and your clearance test should come from a licensed assessor who is not the remediator.

Questions we get asked

Can I just clean mold with bleach?: For a small patch of surface growth on a hard, non-porous surface, routine cleaning can be appropriate, and CDC clean-up guidance covers doing that safely. What bleach cannot do is remove growth from inside porous material such as drywall or reach the water source that caused it, and disturbing growth without containment can spread spores through the house.
Do I need a mold test before remediation?: Not to decide whether visible mold should be removed. Neither CDC nor EPA recommends routine sampling for that purpose, because visible growth plus a moisture source is already the answer. Testing earns its cost in three situations: suspected hidden growth, identifying the extent of contamination, and post-remediation verification.
Why does mold come back after remediation?: Almost always because the water did not stop. A roof detail that leaks only in driving rain, a slow supply-line weep behind a vanity, a condensation problem from undersized ductwork, or chronic high indoor humidity will regrow mold on new drywall as readily as on old.
Is my mold damage covered by insurance?: It depends on the policy and on the cause. Many Florida homeowners policies cover mold that results from a sudden covered water loss, often with a specific dollar sublimit, while excluding mold caused by long-term seepage or deferred maintenance. Your declarations page and mold endorsement are what control it.

Official sources

Everything on this page rests on the documents below. Read them yourself, they are all free.

Last reviewed against these sources on August 26, 2026. These definitions are general information about restoration work and property claims in Florida, not legal advice or a coverage opinion. Your policy language and the facts of your loss control what is owed. Swift Response Restoration Inc is a licensed restoration contractor, not an insurer, a public adjuster, or a law firm.

Not sure how this affects your loss?

Send us the estimate, the photos, or just tell us what happened. We will walk you through what you are looking at and what the next step is. Free inspection, no obligation, and someone answers the phone at any hour.

(305) 733-413424/7 Emergency Response

Related terms

Mold Condition 1, 2, 3

The IICRC S520 grading of a space: Condition 3 is active growth, Condition 2 is settled spores from it, Condition 1 is a normal fungal ecology.

Containment

A sealed work area, usually plastic sheeting held under negative pressure, that keeps contamination and dust inside the job.

Post-Remediation Verification

The independent check after remediation that the work area is visibly clean, dry, and back to a normal fungal ecology before it is rebuilt.

Mold Assessor vs. Mold Remediator

Two separately licensed roles in Florida: the assessor diagnoses and writes the protocol, the remediator performs the work, and the same firm cannot do both on one project.

All glossary terms