Mold questions South Florida homeowners actually ask

Stop the water if you can find it, and do not disturb the growth — scrubbing or sanding it aerosolizes far more than leaving it alone. If the smell tracks with your air conditioning, turn the system off rather than running it, because a running system distributes whatever is in it. Then get somebody to look at it. Photograph everything before anything changes, especially if an insurance claim is possible — the first 48 hours sets out the order to do all of this in.

The dividing line is the EPA guidance — under about ten square feet, roughly a three-foot square, is generally a job you can do yourself, and the EPA sets it out here — but the material matters more than the area. Surface growth on non-porous tile or a shower surround is a cleaning job. Anything on drywall, in insulation, inside a wall cavity, or in an air system is a containment job regardless of size, because those cannot be cleaned in place and disturbing them without containment spreads it.

If you can see it and you know where the water came from, testing usually just delays the work by a week to confirm what you already know. Test first when you have symptoms and no visible growth, when you need documentation for a claim or a real estate transaction, or when there is a dispute between a landlord and a tenant — what a real inspection includes covers what you should get back for the money. Always test at clearance, regardless.

It scales with the square footage of affected material and how much of it is porous. A contained bathroom wall, an air handler and plenum, and a whole-house condition after a roof failure are three different orders of magnitude. What we will not do is quote a firm number over the phone, because that number always gets revised upward once someone actually takes a reading. Comparing three quotes is the more useful thing to read before you have any of them.

Partially, usually. Most Florida policies carry a mold sublimit — $10,000 is a common figure — and coverage typically depends on the mold resulting from a sudden, accidental, covered water event. Gradual seepage, deferred maintenance, and chronic humidity are excluded in most policies. Document everything from day one; the documentation is what determines the outcome more than the argument does.

For a sudden discharge — a supply line, a water heater, a condensate overflow into a ceiling — usually yes. For gradual humidity, filing may cost you more in premium and claim history than it recovers against a sublimit. We will document conditions either way and we will not push you toward a claim because it makes our invoice easier to collect.

Almost always because they are for different work. One is source removal with containment and clearance; another is a fogging service. Compare the scopes, not the numbers: what material is being removed, is there containment and negative air, who does the clearance test, and is reconstruction included or separate. The five things a scope has to state is the checklist version of that.

Because the source is in the equipment. A smell that is strongest in the first thirty to sixty seconds of a cycle and fades as it runs points at the coil or the drain pan — the blower pushes the accumulated odor down the ducts, then the air behind it is cleaner. A smell that grows as the system runs points more toward the duct system itself, which is a different job from the equipment.

Maybe, but it is rarely the whole story. Ducts are the delivery system; the coil is where growth almost always starts. If somebody quotes you duct cleaning without opening the air handler cabinet, they have looked at the pipes and not the source — the seven places we find it is where that starts.

Rigid bonded fiberglass with a foil facing, used to build plenums and trunk lines in most Florida construction before roughly 2000. The interior face is an exposed fiber mat, so it is porous — growth extends into the fibers rather than sitting on the surface. No cleaning process removes growth from inside a fiber mat, and coating over it seals it in. That is why colonized duct board is replaced rather than treated.

A properly placed, correctly sized UV-C lamp aimed at the coil surface does inhibit growth on that coil, and there is real evidence behind it. What it does not do is clean a coil that is already colonized, sterilize your ductwork, or fix a humidity problem. It is a maintenance tool after remediation, not a substitute for it, and the lamps need replacing annually to do anything at all.

That is a medical question and we are not qualified to answer it about you specifically. What is well established is that indoor mold can trigger allergic responses, worsen asthma, and pose genuine risk to immunocompromised people. Beyond that, the research on broader health effects is genuinely mixed, and anyone in our industry who tells you with certainty that mold is causing a specific symptom is going past what they know.

For most jobs, no — containment and negative air exist so the rest of the house stays usable. Plan to stay out of the containment area entirely — our process sets out what is built and when. We do recommend relocating when the work involves the only air handler in the house in the middle of summer, when the affected area is large, or when someone in the home is immunocompromised, pregnant, or has significant respiratory disease.

Less than its reputation. On non-porous surfaces, soap and water with mechanical scrubbing performs about as well and is safer to use — worth knowing that the EPA’s own cleanup instruction is to scrub hard surfaces with detergent and water, and does not mention bleach at all. On porous material, bleach is mostly water — the chlorine stays at the surface while the water carries into the material, which can leave the substrate wetter than it started. It is not a remediation tool.

Yes. Florida licenses mold assessors and mold remediators as two separate credentials under Chapter 468, and performing or advertising this work without the license is a violation. The same section stops an assessor from remediating a structure their company assessed in the previous twelve months — that twelve-month bar is the specific rule, rather than a blanket ban, and it is what makes a clearance test mean anything. Ask for a license number, and verify it — the state maintains a public license lookup.

Because the conflict is obvious once you say it out loud: a company that both decides how much mold there is and gets paid to remove it has a financial reason to find more. The separation is what makes a clearance test meaningful. It is also why “free mold inspection, we can start Monday” is a phrase worth being careful around.

The industry consensus standard for professional mold remediation. It defines the conditions, the containment levels, and the principle the whole trade is supposed to operate on — that remediation means physically removing contamination, not treating it in place. It is not law, but it is the document a competent remediator writes scopes against and the one an expert witness will reference if things go badly. Every stage of the work is scoped against it, and what the standard actually requires is set out in full alongside NADCA ACR.