Small-Area Mold Cleanup in McKinney: Understanding the Texas 25-Square-Foot Rule

If you have spotted a patch of mold under a McKinney sink or behind a baseboard, your first question is probably "how bad is this, and who do I call?" Texas actually has a specific rule that answers part of that question for you. Understanding the 25-square-foot threshold set by the Texas Department of Licensing and Regulation (TDLR) helps you know whether you have a quick cleanup on your hands or a job that legally requires a licensed mold remediation contractor.

What the Texas 25-Square-Foot Rule Actually Says

Texas regulates mold remediation through TDLR, and the rules require a licensed mold remediation contractor for projects involving mold that affects a total surface area of 25 contiguous square feet or more. The word "contiguous" matters: it means a connected, continuous area of growth, not the sum of scattered specks around your house. Picture a square patch roughly five feet by five feet. If the affected drywall, subfloor, or framing reaches that size in one connected area, Texas law steps in and a TDLR-licensed remediator must handle it.

Below that threshold, the state provides an exemption for small-area cleanup. That is the lane Go Green Restoration works in. We are not a TDLR-licensed mold remediation company, and we do not portray ourselves as one. What we can legally and safely do is clean up small, contained mold under 25 contiguous square feet, and just as importantly, find and stop the moisture that caused it in the first place.

How to Tell Which Situation You Have

Measuring is the first step, but a few practical signs help you gauge scope before anyone arrives. A small, isolated spot is usually easy to identify and stays in one place. A larger problem tends to announce itself in other ways.

• The visible patch is clearly smaller than a five-by-five-foot square and confined to one spot, such as the corner of a bathroom or one cabinet base.
• There is no musty smell spreading through multiple rooms, and you do not feel it in your HVAC airflow.
• Mold is not creeping behind walls, under flooring, or across a ceiling where you cannot see its true extent.

If you cannot see where the growth ends, if it spans multiple wall cavities, or if it followed a major water event like a burst supply line, assume it may exceed the threshold. In McKinney's newer subdivisions around Stonebridge Ranch and Tucker Hill, foundation-related plumbing leaks from shifting clay soil can feed mold slowly behind cabinets and walls for months, so the visible patch is sometimes only part of the story. When that is the case, the responsible move is a TDLR-licensed remediator, not a patch job.

What Our Small-Area Cleanup Looks Like

For qualifying small areas, our approach centers on containment, safe removal, and moisture control. We isolate the work zone so spores do not travel, remove the affected material, clean the surfaces, and dry everything thoroughly. Because Go Green Restoration is EPA Lead-Safe certified, we take extra care in older properties where lead paint and original materials are common, such as the century-old buildings around Historic Downtown McKinney and the Square. Those homes often pair aged plumbing with original wiring and plaster, and disturbing the wrong surface carelessly can create a bigger hazard than the mold itself.

The cleanup is only half the job. Mold returns if the water source remains, so we trace the moisture to its origin, whether that is a slow drain leak, condensation, or a foundation-driven plumbing shift. We are bonded, insured, and IICRC-certified, and our drying and moisture-control work follows recognized industry standards. The goal is a small area that stays dry and clean, not a temporary cosmetic fix.

When You Need a Licensed Remediator

We will tell you honestly when a problem is bigger than small-area cleanup. If the mold is 25 contiguous square feet or larger, widespread, or part of a commercial property, Texas requires a TDLR-licensed mold remediation contractor, and we gladly refer you to one. There is no upselling and no overstepping our scope. Our job is to handle what we are qualified and permitted to handle, and to point you in the right direction for everything beyond that.

If you have a small patch of mold in your McKinney home and want a clear, straight answer about whether it qualifies for cleanup or needs a licensed remediator, call Go Green Restoration at (469) 727-3217. We will assess the situation, explain your options in plain English, and help you take the right next step.