The 25 contiguous square feet line under Texas Mold Assessment and Remediation Rules (TMARR)
Under Texas Mold Assessment and Remediation Rules (TMARR), remediation of mold contamination at or above 25 contiguous square feet requires licensed mold professionals, with a state-required separation between the assessor who defines the scope and the remediator who performs it. Handling a large growth with in-house maintenance staff is not a shortcut — it is a compliance problem attached to a health complaint. We route to crews holding the proper licensure, with an independent assessment path when the threshold is in play.
Tenant disclosure and complaints
Mold complaints in occupied units are habitability and disclosure events, and how they are answered gets remembered — and sometimes litigated. A documented response: assessment, containment, clearance, dated at every step, is the manager's best defense and the tenant's best assurance.
The recurring-inspection angle
Multifamily mold is rarely a one-building surprise; it is a humidity and envelope pattern across a portfolio. Post-remediation, scheduled moisture inspections on known-risk stacks turn the next event from an emergency into a work order.
Questions property managers teams ask
When does Texas law require a licensed mold remediator?
When contamination reaches 25 contiguous square feet in a building, Texas Mold Assessment and Remediation Rules (TMARR) requires licensed assessment and remediation, performed by separate parties. Below the threshold, licensure is not mandated — but documentation still is, if you ever have to show your work.
Does a landlord have to tell tenants about mold?
Health-affecting conditions in occupied units carry disclosure and repair duties under habitability law, and post-remediation clearance documentation is what closes the conversation. Silence is the highest-risk strategy available.