Small-Area Mold Cleanup in Richardson, TX: Understanding the Texas 25-Square-Foot Rule

If you have spotted a dark patch under a sink or along a baseboard in your Richardson home, your first question is probably simple: how serious is this, and who do I call? In Texas, the answer often comes down to a single number — 25 square feet. Understanding that threshold tells you whether you are dealing with a quick, contained cleanup or a job that legally requires a state-licensed specialist.

The Texas 25-Square-Foot Rule, in Plain English

Texas regulates mold remediation through the Texas Department of Licensing and Regulation (TDLR). Under TDLR rules, any mold project covering 25 contiguous square feet or more must be handled by a licensed mold remediation contractor. "Contiguous" means a connected, continuous area — picture one unbroken patch about five feet by five feet.

There is an important exemption built into the law. Cleanup of mold affecting less than 25 contiguous square feet does not require a TDLR mold license. This is the small-area work Go Green Restoration performs. We are bonded, insured, and IICRC- and EPA Lead-Safe certified, and we scope our mold cleanup strictly to areas under that 25-square-foot threshold. Anything larger, or mold that has spread through multiple rooms or inside wall cavities and HVAC systems, belongs to a TDLR-licensed remediator — and we are glad to refer you to one.

How to Tell Which Kind You Have

You do not need to measure to the exact inch, but a few practical checks help you size up the situation before you call anyone.

• **Measure the visible patch.** A spot the size of a dinner plate or a single ceiling tile is almost certainly small-area work. A growth running the length of a wall or spanning a closet floor likely crosses the threshold.
• **Look for connected spread.** Several small spots that join behind drywall may add up to a contiguous area larger than they appear on the surface.
• **Notice musty odor without a visible source.** A persistent smell with no patch you can see often means moisture and mold are hiding inside a wall or under flooring — a sign to bring in a licensed remediator and possibly an assessor.
• **Check how long moisture has been present.** A leak caught within a day or two rarely produces large growth; water that sat for weeks usually does.

Richardson homes give mold plenty of opportunity. Many of the mid-century houses around Cottonwood Heights and Buckingham still have their original galvanized plumbing, which corrodes and fails from the inside out. A slow drip behind a vanity in one of these homes can feed a small mold patch for weeks before anyone notices the stain. Catching it early is exactly what keeps the job in small-area territory.

What Small-Area Cleanup With Go Green Restoration Looks Like

When the affected area is under 25 contiguous square feet, our crews focus on two things: removing the visible mold safely and fixing the moisture that caused it. Because surfaces in older Richardson homes can hide lead-based paint, our EPA Lead-Safe certified methods matter here — we contain the work area, control dust, and clean up so spores and paint particles do not spread through your house.

Moisture control is the part homeowners most often skip on their own. Wiping a spot with bleach does nothing if the galvanized supply line behind the wall is still weeping. We identify and address the water source, dry the materials properly, and verify the area is no longer damp. Without that step, the patch simply comes back.

We are deliberately clear about our limits. Go Green Restoration is not a TDLR-licensed mold remediation company, and we do not perform full remediation or handle large or widespread mold. If your inspection reveals growth at or beyond 25 contiguous square feet, mold inside your HVAC system, or contamination across several rooms, that work requires a licensed remediator by law. We will tell you so directly and connect you with the right professional rather than take on work we are not licensed to do.

When in Doubt, Get a Quick Look

Spring storm season brings hail and wind-driven rain across the Telecom Corridor and surrounding neighborhoods, and roof or window leaks from those storms are a common starting point for hidden mold. If you are not sure whether your situation is a small patch or something bigger, the safest move is a quick professional assessment before moisture has time to spread.

Go Green Restoration serves homeowners throughout Richardson with honest, compliant small-area mold cleanup and the moisture repairs that prevent it from returning. Call us at (469) 727-3217, and we will help you figure out exactly what you are dealing with — and who is the right team to handle it.