Mold in a Florida HOA or condo community raises the question of who is responsible. How documenting the moisture source helps owners and boards sort it out.

Mold in a planned community has a way of becoming a paperwork problem before it becomes a repair. The owner says the roof leaked. The board says the owner's air conditioning was off all summer. Both might be partly right, and in the meantime the drywall stays wet and the growth spreads.
Florida has thousands of homeowner and condominium associations, from townhome communities in Kissimmee to high-rises in Tampa and the sprawling villages of Sumter and Lake counties. This post explains how responsibility is generally divided, what documentation moves the conversation forward and why an independent assessment is useful to both sides. It is not legal advice; your governing documents and an attorney determine the specifics.
The direct answer
Responsibility for mold in an association community generally follows responsibility for the moisture source. If water came from a component the association maintains, such as a roof, building exterior or common plumbing, the association is usually involved. If it came from something inside the unit that the owner maintains, such as a supply line, appliance or the owner's air conditioning settings, it is usually the owner's issue. Your declaration, bylaws and maintenance responsibility documents define the line. Documentation of where the water actually came from is what lets anyone apply those documents.
Why the source matters more than the mold
Mold is a symptom. It grows where materials have stayed wet for more than 24 to 48 hours. Arguing about the mold without establishing the water source is like arguing about a ceiling stain without looking in the attic. Once the source is documented, the governing documents usually answer the responsibility question fairly quickly.
Common sources in Florida association communities and where they generally fall:
| Moisture source | Typically maintained by |
|---|---|
| Roof covering and flashing | Association (in most condos and many townhome HOAs) |
| Exterior walls, stucco, windows (varies widely) | Often association for structure, owner for window units; check documents |
| Common plumbing stacks and risers | Association |
| Supply lines, fixtures and appliances inside the unit | Owner |
| Air conditioning equipment serving one unit | Owner, usually |
| Shared condensate drain lines | Association, often |
| Irrigation spraying the building | Association |
| Grading and drainage around the building | Association |
| Humidity from thermostat settings during vacancy | Owner |
The "varies widely" entries are where disputes live. A window leak might be the window unit (owner) or the flashing and stucco around it (association). Instruments can often show which, because the wet footprint starts at a different point in each case.
What the owner should do first
- Notify in writing. Email or a dated letter to the manager or board describing what you see, with photographs attached. Keep a copy.
- Photograph everything with dates. Stains, swollen baseboards, lifted flooring, visible growth. Include a ruler for scale.
- Protect your unit. Remove wet contents, run the air conditioning, keep humidity below 60 percent. Document what you did.
- Get independent documentation. A UES water intrusion and damage assessment maps the moisture with thermal imaging and meters and identifies the direction of travel. If growth is suspected, a comprehensive mold assessment adds sampling sent under chain of custody to an independent accredited lab and a written remediation protocol.
- Share the report. Give the association the full report, not a summary. Specific readings and a clear source finding are what a board can act on.
What the board or manager should do
Boards are volunteers, and managers are stretched across many properties. The most useful thing either can do is treat a mold report as a water intrusion investigation rather than a dispute.
- Acknowledge the notice in writing and schedule an inspection of the common elements near the reported area.
- Check for a pattern: have other units on the same stack, elevation or roof section reported stains or odors?
- Have the building side assessed independently. A report from a licensed assessor who does not remediate gives the board a defensible record whether the finding favors the association or the owner.
- Avoid letting the association's maintenance contractor diagnose mold. Repair contractors fix things; they do not sample or document extent.
- Keep the owner informed. Silence is what turns a maintenance item into a legal one.
Why independence matters to both sides
Florida licenses mold assessors and mold remediators separately, and the law keeps the two roles apart. An assessor who also sells remediation has an obvious interest in a large scope; a remediator who offers a "free inspection" is pricing a job. In an association dispute, either one gets challenged.
UES assesses only. We do not remediate, dry buildings or accept referral fees. When an owner and a board both receive the same independent report with instrument readings, lab results and a written protocol, the argument usually shifts from "is there a problem" to "how do we fix it," which is where it should be.
The remediation and verification phase
Once responsibility is settled, remediation should follow the written protocol regardless of who hires the contractor. The protocol defines what comes out, how far beyond visible growth, what containment is required and what the finished condition must be. After the work, a post-remediation verification confirms the area is dry and the air sampling is acceptable. Both parties should receive the PRV report. It closes the file and protects everyone if the area is questioned later.
For buildings where the moisture source was a common element, the board should also confirm the source repair with instruments, not just a contractor's invoice. A roof patched over wet insulation will produce another report next season.
Preventing the next dispute
- Associations: schedule exterior and roof inspections before hurricane season, keep records of irrigation adjustments and clear shared condensate drains annually.
- Owners: keep air conditioning running during absences, set humidity rather than just temperature, and ask someone to walk the unit after storms.
- Both: keep a shared log of water intrusion reports by unit and date. Patterns are easier to see on paper.
When to call UES
Call when a stain or musty odor appears in a unit, when an owner and association disagree about a moisture source, or when a board needs independent documentation of a building condition. We work with owners, managers and boards across Orlando, Kissimmee, The Villages, Tampa and the rest of Florida.
Book an assessment online or call (407) 438-4684, Monday through Friday, 9:00 AM to 5:30 PM.
Related reading:
Frequently asked questions
Is the HOA responsible for mold inside my unit?
Usually only if the moisture that caused the mold came from a component the association maintains, such as a roof, exterior wall or common plumbing. Interior finishes and growth caused by the owner's own plumbing or humidity control are typically the owner's concern. Your governing documents define the split, and an attorney can interpret them for your case.
What evidence do I need to show the HOA that mold came from a common element?
Dated photographs, written notice to the association and an independent assessment that maps the moisture with instruments and shows its direction of travel. Lab results confirming growth and a written protocol defining the scope complete the file. The more specific the moisture source documentation, the stronger the request.
Should the association or the owner hire the mold assessor?
Either can, and sometimes both do. What matters is that the assessor is independent, meaning licensed to assess but not performing remediation, so neither side can dismiss the findings as a sales estimate. A shared report from an independent assessor often resolves disputes faster than two competing ones.
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.



