The questions to ask a mold inspector are whether they hold a Florida mold assessor license, whether their company would remediate the home it inspects or takes referral fees, what instruments they use and whether the whole property is inspected, how they decide whether to take samples and what each one costs, what the report will contain and when it arrives, and what they think the moisture source is. The answers tell you within ten minutes whether you are hiring an investigator or a salesperson.
We wrote this note because clients across the Treasure Coast and Palm Beach County ask us these questions on the phone, and the good ones are worth sharing with everyone, including people who end up hiring someone else. For each question below we have included the answer a competent independent assessor should give, so you can measure any inspector against it, and we have included the answers that should make you hesitate. The questions are grouped by when to ask them, because some belong on the first phone call and some belong standing in your hallway.
Questions to ask before you book
Are you a licensed Florida mold assessor, and what is your license number? The right answer is a number beginning with MRSA that you can verify on the state's public license search in about a minute. Our verify my license page shows how using Sterling's own number. Hesitation, a certification from a private organization offered instead of a state license, or a company license with no named person are reasons to move on. The license belongs to a person, and that person should be the one who shows up.
Could your company end up doing the remediation on my house, and do you receive anything if I hire a remediator? The right answer is no and no, said plainly. Florida's mold statute prohibits a licensed assessor from remediating a property they assessed within the previous twelve months and bans referral fees between assessors and remediators in either direction. The full text is on the Florida mold law page. An inspector who profits from finding mold has a reason to find more of it, and an inspection that ends with a cleanup estimate from the same company was never independent. This is the single most important question on the list, and the why free mold inspections aren't free answer explains why.
Will you inspect the entire property or only the area I am worried about? The right answer is the entire property. The problem a client calls about is usually a symptom, and the moisture that caused it is often somewhere else. An inspector who only looks where you point is confirming your worry rather than investigating your house.
What instruments do you use? The right answer includes a moisture meter, thermal imaging, and a hygrometer for indoor and outdoor humidity and temperature, and a good inspector will volunteer what each one does and does not tell you. An answer that amounts to "I look" is an answer.
How do you decide whether to take samples, and what does each sample cost? The right answer is that sampling depends on what the inspection finds and what question you need answered, that some inspections warrant no sampling and the report will say so, that air samples always come with an outdoor control from the same day, and that the per sample price is stated up front. An answer that every inspection includes a fixed number of air samples regardless of findings is a sign the samples are revenue rather than evidence. Our note on air sampling versus surface sampling covers when each is warranted.
Can I see a sample report? The right answer is yes, immediately. Sterling's is public on the sample report page. A report is what you are paying for, and an inspector who will not show you one before you book is asking you to buy something unseen.
What will the report contain and when will I have it? The right answer describes climate readings, room by room findings with labeled photographs, moisture readings, an interpretation, ranked recommendations, and, if samples are taken, a separate written interpretation of the lab result, delivered within a stated number of days. An answer that amounts to "you'll get a summary" is thin.
How long will you be on site for a home my size? The right answer is a real block of time, because a thorough inspection of an average home is not a twenty minute visit.
Questions to ask during the inspection
What are you seeing right now? A good inspector narrates as the visit goes, and this question is an invitation. The answer teaches you your own house. An inspector who cannot or will not explain what a reading means or why a particular wall is getting attention is either not sure or not interested in your understanding, and neither is good.
Is this wet right now, or is this old? This is the most useful question you can ask about any stain, because it is the question a moisture meter answers and a photograph cannot. The right answer is a number, compared against a dry reference reading on the same material somewhere else. Our note on telling an old ceiling stain from an active leak explains what the answer means.
Where do you think the water is coming from? An honest answer might be "I think it is the condensate line, and here is why," or it might be "I do not know yet, and here is what I would need to do to find out." Both are fine. The answer to be wary of is a confident source with no explanation, or a pivot to how bad the mold is instead of where the water is. Mold is the symptom. The source is the thing that gets fixed.
What is the humidity in here right now, and what should it be? The right answer is a number from a hygrometer and a target range, which in coastal Florida means holding indoor humidity in the mid forties to mid fifties and never letting it sit above sixty for long. An inspector who has not measured it is missing the most common cause of mold in this climate. Our note on what indoor humidity should be in coastal Florida has the targets.
Do you think this needs sampling, and what would the sample tell us that we do not already know? This is the question that keeps sampling honest. A good inspector will either explain a specific question the lab can answer, such as whether the indoor air differs from the outdoor baseline when there is an odor with no visible source, or will say that sampling is not needed here and explain why. If the answer is vague, decline the sample.
Did you look in the attic, the air handler closet, and the closets on the exterior walls? If the answer is no, ask why, because in the homes we inspect from Fort Pierce to Jupiter those three places produce more findings than the rest of the house combined.
Should I clean this or leave it alone for now? A good inspector will tell you not to disturb anything that has not yet been documented or sampled, and will also tell you honestly when something is a surface condition that you can simply clean once the cause is corrected.
Questions to ask after the inspection
What is the moisture source, and what has to happen to fix it? The right answer is specific and ranked. Fix this first, then dry or replace this, then clean this, then verify, then maintain. The recommendation hierarchy always starts with the source, because cleaning without correcting the moisture means the growth returns. Our note on why mold keeps coming back after cleaning is about what happens when that order is skipped.
Is this something I can handle myself? An independent inspector can answer this honestly because there is nothing to sell. Many findings are homeowner or handyman work, a bathroom fan, a condensate float switch, a caulk line, a dehumidifier, a thermostat fan setting. A good report says so. An inspector who turns every finding into a professional remediation job is worth questioning.
If remediation is needed, how do I make sure the remediator does the right work? The right answer is a written protocol that defines the scope, independent clearance testing afterward, and the advice to get more than one bid and to never let the remediator write their own scope. Sterling's sample remediation protocol shows what that document looks like, and our note on what passing clearance testing means explains the verification step.
What do the lab results mean for this house? When samples were taken, this is the question the written addendum should answer, and it is the difference between a lab report and an assessment. The lab produces a table of spore counts by type with an outdoor comparison. The assessor explains what those numbers mean given what was observed in the house, what the water damage indicator types signify, what a not elevated result does and does not rule out, and what to do next. If all you receive is the lab's table, you did not receive an interpretation. Our note on how to read your mold lab report walks through the table itself.
Can this report be given to my landlord, the seller, my insurer, or a remediator as is? The right answer is yes, because a proper report is written to be handed to someone who was not in the house. If the inspector says you will need to explain it, the report is not finished.
What should I watch for over the next month? A good inspector leaves you with specific things to monitor, a humidity reading to check, a stain to photograph weekly, a fan to test, so that you know whether the fix worked.
The answers that should make you hesitate
A few answers come up often enough that they are worth naming. "We include air samples on every inspection" means the samples are priced in rather than reasoned. "We can start remediation this week" from the same company that inspected means the inspection was a sales call. "It's black mold" delivered on sight, before any lab result, is a scare rather than a finding, and our black mold myths guide explains why the phrase means much less than people think. "You don't need to see a sample report" means there is a reason. "We don't need to go in the attic" in a Florida home means the most likely place for a finding is being skipped. "Just sign here and we'll handle the insurance" is a reason to slow down and read our insurance claims guide first.
None of those answers are illegal. All of them tell you that the inspection is not being run for your benefit.
Why an independent assessor answers these questions differently
Because there is nothing downstream of the inspection. If we inspect your home, Florida law bars us from remediating it for twelve months, we take no referral fees, and the report has no financial reason to say anything other than what the house says. That is why the answer to "can I handle this myself" is sometimes yes, why the answer to "does this need sampling" is sometimes no, and why the answer to "what is the source" is the whole point of the visit rather than a footnote to a quote.
Sterling's assessor has personally completed more than three hundred inspections since January 2026 across the Treasure Coast and Palm Beach County, and every one of them started with the questions above being answered before anything was booked. The process page describes the visit step by step and the pricing page states the numbers. If you would like to ask us these questions directly, request a quote and we will answer every one of them before you decide.
Frequently asked questions
What questions should I ask a mold inspector before hiring them?
Ask for their Florida mold assessor license number and verify it, ask whether the company would remediate the home it inspects or accepts referral fees, ask whether the whole property will be inspected, what instruments will be used, how sampling decisions are made and what each sample costs, what the report will contain and when it arrives, and ask to see a sample report. Plain, specific answers to all of those are the sign of an independent investigator.
What should a mold inspector be able to tell me after the inspection?
Where the moisture is coming from or what it will take to find it, whether the affected materials are wet now or were wet in the past, what the indoor humidity is and what it should be, whether the situation needs professional remediation or can be handled by the homeowner, what any lab results mean for this specific house, and what to do next in order, starting with fixing the source. All of that should be in a written report usable by a third party.
Is it a red flag if a mold inspector also offers remediation?
Not by itself. It is a red flag when they offer to remediate the same home they inspected, which Florida law prohibits within twelve months of the assessment, along with referral fees between assessors and remediators. An inspector who profits from finding mold has an incentive to find more of it and to recommend more work than the house needs. An inspector who cannot do the cleanup on your home, and has no stake in it, is the one whose report can honestly say the problem is minor.
