By Joe Margherita, FL Licensed Mold Assessor MRSA4534, ACAC Certified Indoor Environmentalist
Florida does not require a mold inspection before you buy a house. I recommend one anyway, and the reason is a number from my own files: about one in four of my pre-purchase inspections turns up a problem the general home inspection missed.
I have inspected homes for Tampa Bay buyers for 27 years. The houses that worry me most are the ones that show well. Fresh paint, new flooring, and an updated kitchen can sit on top of moisture that was covered instead of fixed.
The short version for Tampa Bay buyers
- A home inspection is not a mold inspection. It covers the roof, plumbing, electrical, HVAC, and structure in a few hours. It is not built to find hidden moisture or measure what is in the air.
- Cosmetics hide it. Fresh paint and new floors in a flipped home can conceal water damage that was never repaired.
- Independence is written into Florida law. An assessor may not remediate a house he assessed within the past 12 months. I do not offer remediation at all.
The Wall That Had No Reason to Be Wet
In 2024, I inspected a block house in St. Petersburg for a buyer. My thermal camera picked up moisture in an interior wall. On its face, that made no sense. The wall was nowhere near a window, and there was no plumbing inside it. Nothing in that wall should have been wet.
The source was on the roof. Water was getting in at a roof vent, working its way through the attic, and coming down inside that wall.
That is why I do not stop at the spot that looks wrong. Water travels. The wall that reads wet is often not where the water got in, and the leak and the damage can be in two different parts of the house.
What a General Home Inspection Misses
Most buyers assume the home inspection covers mold. It does not, at least not in a way that helps you. A home inspector evaluates the roof, plumbing, electrical, HVAC, and structure in a few hours. If he sees mold, he notes it. He is not there to collect air samples for lab analysis, identify species, or measure whether indoor spore levels are elevated.
Mold assessment is a separate Florida license, issued by the Department of Business and Professional Regulation, with its own exam, training, and insurance requirements. A home inspector’s license is not a mold assessor’s license, and a home inspector cannot present himself as a mold assessor without holding one.
I cover the differences in detail in Can a Home Inspector Test for Mold in Florida? [ADD LINK]
Where I Find It in Tampa Bay Homes
Every home here runs air conditioning most of the year. That creates condensation wherever warm, humid air meets a cold surface: inside wall cavities, on ducts running through a hot attic, and around windows and doors that were never sealed properly. Beyond that, the problems tend to follow the type of house.
- New construction: moisture left over from the build that was never dried out before closing.
- Flips: cosmetic updates that cover water damage instead of repairing it.
- Older homes: slow leaks that have fed moisture into framing and insulation for years.
- Storm-damaged homes: houses that took on water in Helene or Milton in 2024 and are now coming to market.
What a Pre-Purchase Mold Inspection Includes
- Visual inspection of the places moisture collects: HVAC closets, attics, and under kitchen and bathroom fixtures.
- Infrared thermal imaging to find temperature anomalies behind finished walls, the kind you cannot see at an open house.
- Moisture meter readings across drywall and framing to confirm where water is.
- Air sampling indoors, compared against an outdoor baseline.
- Third-party lab analysis by an accredited laboratory, with results back in 24 to 48 hours. That matters when your inspection period is short.
- A written report with the lab results, species identification, and my interpretation of what the findings mean for your closing.
What Happens If Mold Is Found
Finding mold during the inspection period does not kill the deal. It gives you lab-verified data to decide with. Buyers generally take one of four routes:
- Ask the seller to remediate before closing, confirmed by independent post-remediation verification.
- Negotiate a price reduction or credit and handle the cleanup after move-in, on your own terms.
- Proceed as is, with the cleanup cost factored in from the start.
- Walk away, if your contract and inspection period allow it.
I have seen this go both ways. One buyer used my report to negotiate $8,000 in seller credits, more than enough to cover the cleanup. I have also seen buyers close on homes that needed $15,000 in remediation they did not know about. Documented during the inspection period, that would have been something to negotiate. After closing, it was theirs.
Seller Disclosure and the Flood Form
Florida has no standalone mold disclosure law. Florida courts do require sellers to disclose known defects that materially affect a home’s value and that a buyer could not readily see.
There is now a flood form as well. Under Section 689.302, Florida Statutes, a seller must give the buyer a flood disclosure at or before the time the sales contract is signed. Since October 1, 2025, it asks whether the seller knows of any flooding that damaged the property during their ownership, whether they filed a flood insurance claim, and whether they received assistance for flood damage.
Buyers ask me about that form all the time. I stay out of it. What the seller disclosed, and what it means for your contract, is a question for your agent or attorney. My part is narrower: I can tell you what the house shows today.
What It Costs
A pre-purchase mold inspection starts at $450. Set that against a remediation bill that can run $10,000 or more. It is also the only step in the purchase that tells you what is in the air and behind the walls.
Why Your Mold Inspector Should Be Independent
Your mold inspector should never be the company that does the cleanup. Florida law builds in that separation. Under Section 468.8419, Florida Statutes, a mold assessor may not remediate a structure he assessed within the past 12 months, and a remediator may not assess one he remediated within the past 12 months.
A company that finds the problem and then profits from fixing it has a reason to find one. I do mold inspection and indoor air quality testing only. I do not offer remediation, so my only job is to tell you what is there.
Frequently Asked Questions
Is a mold inspection required to buy a house in Florida?
No. Florida law does not require one. It is the buyer’s choice, made during the inspection period.
Who pays for the mold inspection before buying a house?
The buyer usually pays, during the inspection period. If the inspection finds a significant problem, the lab-verified report can support a request for seller credits or for remediation before closing.
Can a buyer back out if mold is found?
It depends on your contract and your deadline. Many Florida contracts give the buyer an inspection period with a right to cancel, but the terms and the number of days vary. Ask your agent or attorney before the period runs out, and schedule the mold inspection early enough to have lab results in hand.
How long does a pre-purchase mold inspection take?
A standard single-family home or condo usually takes 1.5 to 2 hours on site. Lab results follow in 24 to 48 hours.
Buying in Tampa Bay?
I inspect homes for buyers in Hillsborough, Pinellas, Pasco, and Manatee counties. Call (813) 365-1994 and tell me your inspection deadline, and I will tell you whether I can get you results in time.
Joe Margherita FL Licensed Mold Assessor MRSA4534 ACAC Certified Indoor Environmentalist Tampa Bay Mold Testing
Joe Margherita
FL Licensed Mold Assessor MRSA4534
ACAC Certified Indoor Environmentalist
Tampa Bay Mold Testing
