Mold surfaces in property transactions constantly — during the buyer's inspection, in an attic photograph, or as a smell somebody mentions at a viewing. Handling it well is mostly about sequence and paperwork.
The disclosure obligation
Texas requires sellers of residential property to complete a seller's disclosure notice, and it asks about previous mold damage or remediation.
Two things follow.
You must disclose what you know. Not what you suspect, not what a buyer might find, but what you actually know about. Failing to disclose known damage is the exposure, not the damage itself.
Disclosure is not a deal-breaker. Buyers are far more troubled by a vague answer than by a documented one. "Yes — there was a condensate leak in 2024, here is the assessment, the remediation scope, the clearance report and the certificate" is a closed subject. "Not that I'm aware of" followed by an inspector finding staining is a renegotiation.
Why the certificate is the whole point
Where licensed remediation is performed above the 25 contiguous square foot threshold, Texas provides for a Certificate of Mold Damage Remediation to be issued to the property owner.
At the time it feels like a formality. At resale it is the most valuable document in the file, because it converts your disclosure from a claim into evidence: the damage existed, a licensed contractor remediated it, and an independent assessor verified the result.
It also matters to the buyer's lender and, in certain circumstances, to insurers — a properly remediated and certified property is treated differently from one with an unresolved history.
So if you are having remediation done and you may sell within a few years, make sure the work goes through the licensed route and make sure you receive the certificate. The incremental cost is small against what it is worth later.
Found during the buyer's inspection
The most common situation, and the timeline is against you.
Do not panic and do not clean it immediately. A cleaned surface with no documentation is worse than the original finding, because now you have disturbed the evidence and have nothing to show for it.
Get it assessed properly. A licensed assessment establishes the actual extent, which is frequently smaller than the buyer fears and occasionally larger than you hoped. Either way, you are negotiating from a measurement rather than from a photograph.
Find out whether it crosses the threshold. Below 25 contiguous square feet, this may be a modest repair. Above it, it is a licensed job with a certificate at the end.
Decide between remediating and crediting. Remediating yourself takes time you may not have and produces the certificate. Giving a credit is faster and leaves the buyer holding an unresolved item, which sometimes suits both parties and sometimes kills the deal.
Expect the lender to be involved. Where financing is in place, a lender may hold funds until the condition is addressed, which puts the work on the closing timeline whether you planned for it or not.
What buyers should do
The other side of the same transaction.
A general home inspection is not a mold assessment, and most home inspectors say so explicitly in their reports. If mold is flagged, or if there is a smell, engage a licensed assessor.
Look at the conditions, not just the finding. Bath fans that discharge into the attic, blocked soffit vents, an air handler drain pan with standing water, a crawl space with bare soil — those are what will produce the next problem, and they are cheaper to negotiate now.
Ask for the paperwork on any previous remediation. Assessment, scope, clearance and certificate. A seller who has all four has handled it properly. A seller who says it was taken care of has told you nothing.
Be realistic about older housing. A pier and beam house in older Bryan with a damp crawl space is not defective; it is typical for its age and construction. What matters is whether it has been addressed and whether the structure is sound.
Pre-listing assessment
Worth considering on an older property, on anything that has been a rental, and on any house where you have ever had a leak.
The argument for it is control. Finding something yourself, before listing, means you choose the contractor, the timeline and whether to remediate or price it in. Finding it during the option period means doing all of that under pressure with a buyer watching.
The argument against is that you then know, and knowing triggers the disclosure obligation. Some sellers would rather not.
That calculation is yours. What we would say is that buyers in this market inspect thoroughly, attics get photographed, and the things you would rather not know about are usually found anyway — just at the worst possible moment.
What not to do
Painting over staining before listing. Stain-blocking primer hides discolouration and does nothing about growth in the gypsum core. Inspectors know what fresh paint on one patch of ceiling means.
Cleaning it away without documentation. You have removed your evidence and kept your disclosure obligation.
Using an unlicensed contractor on a job above the threshold. No certificate at the end, and a buyer's assessor will identify that the work was not done to protocol.
Answering "no" on the disclosure when you know otherwise. That is the actual risk in this whole area, and it is entirely avoidable.
See mold inspection, clearance testing and mold damage repair.
This is general information about how these transactions usually work, not legal advice. For a specific situation, talk to your agent and, where appropriate, a lawyer.
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Tell us what you are seeing and where. We come out, find the moisture source, and put the scope and the price in writing before anything is torn out.