Simple steps to prepare your Florida home before a mold assessor arrives, so air samples are representative, access is clear and the report answers your questions.
The appointment is booked, and now you are wondering whether to open the windows, run the fans, clean the bathroom or move the furniture. Most of those instincts are wrong, and a few small steps in the other direction will make the assessment far more useful. Here is how to get your Florida home ready so the assessor can find what is actually there.
The quick checklist
If you only read one section, make it this one. In the 24 hours before the assessment:
- Keep windows and exterior doors closed.
- Run the air conditioning as you normally do.
- Do not clean, scrub, spray or paint over any suspect area.
- Do not run ceiling fans, portable fans or air purifiers right before the visit.
- Avoid vacuuming, dusting and heavy cooking the morning of the appointment.
- Clear access to suspect areas, the air handler, the water heater and under-sink cabinets.
- Write down the history: leaks, storms, repairs, odors and symptoms, with approximate dates.
- Gather any prior reports, insurance paperwork or contractor invoices.
Everything below explains why.
Why windows stay closed
Air sampling compares the air inside your home to the air outside it. If windows have been open, the indoor sample simply mirrors outdoor Florida air and tells the assessor nothing about indoor sources. Closing up for a day lets indoor conditions settle so a hidden source has a chance to show itself in the sample.
This is especially important in spring and fall, when pleasant weather tempts people to open the house. If you have had windows open, mention it so the assessor can factor it in.
Why the air conditioner keeps running
In Florida the air conditioner is part of the building. It controls humidity, moves air between rooms and, if there is growth in or near the system, distributes spores. An assessment is meant to capture that reality. Turning the system off for a day raises indoor humidity, changes airflow patterns and can make a problem look either better or worse than it normally is.
The exception is if your assessor specifically asks you to change settings for a particular test. Otherwise, normal operation is the goal.
Why you should not clean the mold
This is the most common and most damaging mistake. Homeowners understandably want the house to look presentable, and some worry the assessor will judge them. Please resist the urge.
- Wiping or scrubbing removes the growth the assessor needs to sample and identify.
- Spraying bleach or cleaners releases spores and fragments into the air immediately before sampling.
- Painting or sealing hides the extent of the staining, which helps define the moisture boundary.
- Cleaning does nothing about the moisture source, which is what the assessment is really looking for.
An assessor is not there to judge housekeeping. The growth is evidence, and evidence works best undisturbed.
Why fans, purifiers and vacuuming are paused
Fans and purifiers alter the air in a room. A ceiling fan stirs up settled dust and spores, inflating a sample. An air purifier running for hours scrubs the air, deflating it. Vacuuming and dusting do the same thing a fan does. None of these is harmful in daily life, but on the morning of sampling they distort the picture. Turn them off a few hours ahead and let the air settle.
Clearing access
The assessor will want to reach the places where moisture hides. Before the visit, make sure these are accessible:
| Location | Why it matters |
|---|---|
| Air handler closet or attic unit | Coils, drain pans and plenums are common growth sites |
| Under every sink | Slow supply and drain leaks start here |
| Behind the washing machine and refrigerator | Supply lines and ice maker lines leak quietly |
| Water heater | Tank and valve leaks soak adjacent walls |
| Exterior walls behind heavy furniture | Block wall intrusion shows at the base of walls |
| Closets on exterior walls | Poor airflow plus humidity equals growth |
| Attic access | Roof leaks and duct condensation |
| Garage | Shared walls and water heaters often live here |
Moving a sofa a foot off the wall or clearing a closet floor is enough. You do not need to empty rooms.
Writing down the history
The assessor can read moisture meters and thermal images, but you hold the timeline. Ten minutes of preparation here can redirect the entire inspection. Try to note:
- When you first noticed the odor, stain or growth
- Any leaks, overflows, roof problems or storm damage, and when they were repaired
- Whether the home has flooded or had a slab or plumbing leak
- Recent renovations or new flooring
- Whether the air conditioner has had drainage or freezing problems
- Who in the household has symptoms, when they started and whether they improve away from home (share this as history, not as a request for diagnosis; your physician handles that)
- Whether the home sits empty for part of the year, as many Central Florida seasonal residences do
If an insurance claim is open or a contractor has already looked at the problem, have that paperwork handy. A prior water intrusion assessment or remediation invoice tells the assessor what has already been done.
Pets, children and the day of the visit
Air sampling runs for several minutes per location, and the pump should not be disturbed. Keep pets in a separate room and let children know the equipment is not a toy. Plan for the assessor to spend time in each area of concern and to walk the exterior as well.
What the assessor will do
Knowing the sequence helps the day go smoothly. A UES comprehensive mold assessment typically follows this order:
- A conversation about the history and your concerns.
- A forensic visual inspection inside and out.
- Moisture source detection with thermal imaging and pin and pinless moisture meters, mapped room by room.
- Design of the sampling plan based on the moisture findings.
- Air and surface sampling under chain of custody, including an outdoor control.
- Photographs and documentation of every finding.
- A walkthrough of initial observations with you before leaving.
Samples go to an independent accredited laboratory. Results and the assessor's interpretation are posted in the UES Client Portal, along with a digital protocol if remediation is needed, a vetted remediator list and the Remediation Tracker.
Questions to have ready
While the assessor is on site, ask anything you want. Good questions include:
- What is the most likely moisture source for this area?
- Is this a cleaning issue or a remediation issue?
- Will I need to open any walls to confirm?
- What will the sampling plan be, and why?
- How soon will results be in the portal?
Because UES does not perform remediation, the answers are not shaped by what work might follow.
When to call UES
A little preparation turns an assessment into a clear set of answers. If you are in Orlando, Leesburg, The Villages, Clermont or anywhere in Florida and have a stain, an odor, a water event or a health concern, book an assessment online or call (407) 438-4684, Monday through Friday, 9:00 AM to 5:30 PM. We will confirm the preparation steps when we schedule.
Related reading
Frequently asked questions
Should I clean the mold before the assessor comes?
No. Cleaning, scrubbing or spraying the area destroys the evidence the assessor needs to identify the growth and judge its extent, and it can release spores into the air right before sampling. Leave the area as it is, keep people and pets away from it, and let the assessor document it first.
Should I turn off the air conditioner before a mold inspection?
Run the system as you normally would. Air samples are meant to reflect the conditions you actually live in, and in Florida that means the air conditioner cycling. Shutting it down for a day can change humidity and spore distribution in ways that make the results less representative.
Do I need to be home during the assessment?
It helps a great deal, at least at the start. You know the history of leaks, odors, repairs and symptoms better than anyone, and ten minutes of conversation often directs the inspection. If you cannot be present, write down the history and arrange access, and plan to review the findings in the Client Portal afterward.
Worried about what you just read?
An independent UES assessment tells you exactly what is going on, what caused it and what to do next. Book online or call.
