Guide
Mold after water damage in Texas: the 48 hour window and licensing
Updated
Mold is the reason drying starts before anyone has agreed a price. The window is short, the coverage position is specific, and Texas regulates who is allowed to do the work.
The window
The EPA is unambiguous: "It is important to dry water-damaged areas and items within 24-48 hours to prevent mold growth" (epa.gov). It frames the principle as "the key to mold control is moisture control", and notes that no type of mold "will grow without water or moisture". The Texas Department of Insurance says the same thing in householder terms: "Mold can start growing within a day after a leak" (tdi.texas.gov).
That is why a restoration company will want to start extraction and drying before the insurance position is settled, and it is a reasonable thing to want. It is also why you should still get the scope, the daily moisture readings and the equipment log in writing as they go.
How much you can handle yourself
The EPA gives a size threshold: "If the moldy area is less than about 10 square feet (less than roughly a 3 ft. by 3 ft. patch), in most cases, you can handle the job yourself". Where "there has been a lot of water damage, and/or mold growth covers more than 10 square feet", it points to its remediation guide and says that if you hire a contractor you should "make sure the contractor has experience cleaning up mold". Where "the water and/or mold damage was caused by sewage or other contaminated water", the EPA says to call in a professional.
- Do not run the HVAC system if you know or suspect it is contaminated: the EPA warns it could spread mold throughout the building.
- Fix the moisture source first. Cleaning mold without stopping the water simply resets the clock.
- Porous materials that stayed wet, such as carpet pad and ceiling tiles, are generally removed rather than cleaned.
What your policy is likely to say
TDI sets out the usual shape: "Most homeowner and renters policies cover sudden and accidental water damage... If mold develops on a damaged item, it would be covered", while "most home policies don't cover water damage from gradual leaks or seepage, and that includes damage from mold", and "mold from a flood would not be covered because home policies don't cover floods".
On cleanup specifically, TDI adds that "most home policies don't include mold cleanup and testing after a damaged item is removed", and that "your insurance company may let you add coverage for cleanup caused by a covered loss". That is a question for your agent before you need it, not after.
Licensing, and the certificate at the end
Texas regulates this work. TDI's guidance for people filing a mold claim is direct: "Make sure the mold professional has a state license. You'll need an inspection to show that mold was removed and that you fixed the problem that caused it. Mold professionals must provide a certificate that the mold was removed" (tdi.texas.gov).
Keep that certificate with your house paperwork. It is the document that answers the question a future buyer, lender or insurer will ask about a mold history, and it is much easier to obtain at the time than years later.
This is general information, not medical, legal or insurance advice. If anyone in the household has respiratory problems or a weakened immune system, ask a doctor about the health side rather than a contractor.