Most people find their way to a mold inspector on a bad week. A ceiling stain appeared after a storm. A closet smells like a boat that sat too long. A buyer's inspector wrote one sentence about "possible microbial growth" and now a closing date is in question. The internet is not a calm place to research any of that.
These field notes exist to be the calmer version. It is where we write down what we actually see in the field — in Vero Beach, Port St. Lucie, Stuart, Jupiter, West Palm Beach, and everywhere between — and explain it the way we would explain it standing in your hallway with a moisture meter in hand.
Why we are writing it
Sterling is an assessment-only practice. We inspect, test, document, and interpret. We do not perform remediation, and we do not refer work to a remediation arm of our own company. That structure is the whole reason these notes can exist in the form they do: when nobody profits from the size of the answer, the answer can just be the answer.
Sometimes the honest finding is that a home has a real, active moisture problem that needs professional remediation and a scope written before anyone starts cutting drywall. Sometimes the honest finding is that a stain is ten years old, dry, and not worth a dollar of demolition. Both of those are good days at work. Neither of them requires alarming anyone.
What we will cover
The subject matter follows the work. Expect posts on:
- Mold assessment — what an assessment actually includes, how sampling decisions get made, what a lab report can and cannot tell you, and how to read the one you were handed.
- Moisture intrusion — roof and flashing leaks, window and door pans, stucco and wall assemblies, plumbing failures, slab and vapor issues, and the difference between an active leak and an old dry one.
- Indoor air quality — humidity control, filtration, ventilation, odor complaints, and the questions worth asking before spending money on equipment.
- HVAC-driven moisture — oversized systems, short cycling, condensate failures, duct condensation, and negative pressure. In Florida this is a leading cause of "mystery" mold, and it is chronically under-diagnosed.
- Real estate and insurance context — what buyers, sellers, agents, and property managers each need out of an inspection, and how documentation quality affects a claim later.
- How to read your own house — the small observations a homeowner can make between inspections that are genuinely diagnostic.
The Treasure Coast is its own building science problem
Coastal Florida is not a general-purpose climate. We run high outdoor dew points for a large part of the year, we cool aggressively indoors, and we build with assemblies that hold water in ways northern construction does not. The result is that the same symptom can have very different causes here.
A musty closet on an exterior wall in Jupiter may have nothing to do with a leak. It may be an air conditioning system that cools the air but never runs long enough to dry it, plus a wall cavity sitting a few degrees below the indoor dew point. A stain under a second-floor window in Vero Beach may be a failed sealant joint from a wind-driven rain event two seasons ago that has been dry ever since. Salt air, afternoon storms, long humid shoulder seasons, and hurricane-season water events all leave distinct fingerprints, and part of this job is telling those fingerprints apart.
We will write about the local version of these problems, because generic mold content written for a national audience routinely gives Florida homeowners the wrong instincts.
How we write these posts
A few standing rules, so you know what you are reading:
- We separate what was measured from what was inferred. A moisture reading is a fact. A theory about where the water came from is a theory until it is confirmed.
- We do not fear-sell. There is no "toxic black mold" marketing here, and no post will end by telling you that your family is in danger in order to sell an inspection.
- We name uncertainty out loud. If a question genuinely cannot be answered without opening a wall or running a longer test, we will say so rather than guessing confidently.
- Nothing published here is a substitute for an assessment of your specific property. General guidance is useful for orientation, not for diagnosis.
Frequently asked questions
Do I need a mold inspection if I cannot see any mold?
Often, yes. Visible growth is only one indicator, and it is usually the last one to appear. The more common reasons to have a property assessed are a persistent musty odor, a past water event that was dried quickly or not at all, unexplained humidity, or health complaints that improve when someone leaves the building. An assessment looks for the moisture condition behind the symptom, which is the part that determines whether anything will come back after cleanup.
What is the difference between a mold assessor and a mold remediator in Florida?
Florida licenses the two roles separately. An assessor inspects, samples, interprets results, and writes the protocol describing what needs to be done. A remediator performs that physical work. Keeping them separate removes the incentive for the person diagnosing the problem to also size the job they are about to sell. Sterling operates as an assessment-only practice for that reason, and we do not accept referral fees from remediation contractors.
How long does an inspection take, and when do I get the report?
A typical single-family assessment takes a couple of hours on site, and larger, more complex, or multi-unit properties take longer. Reports are delivered same day to within 24 hours, and any lab results follow on the laboratory's turnaround. If something urgent turns up during the visit, you hear it from us in person before you read it in a document.