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Selling Your Home With Mold: What to Do Before the Inspection Kills the Deal

A Killeen seller had 10 days to closing when a mold inspection flagged Stachybotrys. Here's how we kept the deal alive.

April 1, 20267 min
ByRockey— Owner & IICRC Certified Technician
· Reviewed

Selling a Central Texas home in 2026 is competitive, but inspections still kill deals. One of the most common deal-killers: mold discovered during the buyer's pre-sale inspection. Here's how to respond — fast enough to preserve the closing, thoroughly enough to satisfy the buyer's agent.

Real case: A military family in Killeen selling during a PCS move. Closing scheduled in 10 days. Buyer's inspector flagged active mold growth in the HVAC return closet. Buyer's agent demanded remediation with third-party clearance before closing.

Why this matters: A closing delay during a PCS move can cascade — the buyer may lose interest rate locks, the seller may miss their next move. Speed is everything.

Step 1: Same-day IICRC S520 assessment. We identified Condition 3 active growth (Stachybotrys-appearing based on visual) on drywall behind the return plenum. Approximately 12 square feet affected. Root cause: HVAC duct misalignment causing condensation over 18+ months.

Step 2: Full containment and source removal (Day 1–3). Negative-air barriers. HEPA scrubbing. Technicians in full PPE removed affected drywall and insulation. HVAC duct misalignment corrected.

Step 3: Independent third-party clearance testing (Day 3). We hired an independent Environmental Hygienist — not our company — to conduct clearance sampling. This is critical: the buyer's agent wanted independent verification, not just our word. Lab results: Condition 1 (normal fungal ecology). No detectable Stachybotrys spores.

Step 4: Documentation package (Day 4). Full scope of work. Before/after photos. Moisture readings. Third-party lab results. Delivered to buyer's agent and listing agent.

Result: Closing held on original date. Buyer satisfied with independent documentation. Seller's PCS timeline intact. See the full Killeen case study.

If you're selling and mold surfaces:

• Don't panic. Mold is common. Buyer inspectors flag anything.

• Get an IICRC-certified assessment immediately — not DIY.

• Insist on third-party clearance testing. Makes a stronger case to buyers than your own 'it's fixed now' letter.

• Budget 3–10 days for remediation + clearance. Most deals can absorb that.

• Keep your buyer's agent informed. Transparency builds trust.

If you're buying and see mold:

• Don't walk away automatically. Remediation is often under $10,000 and highly covered by seller credits.

• Ask for IICRC S520 remediation with third-party clearance testing in the response.

• Verify the remediation company with IICRC's firm database.

• Don't accept a simple 'cleaned up' response. Clearance testing is non-negotiable.

Moisture Pro handles pre-sale and post-purchase mold remediation throughout Central Texas. We've salvaged more than a few closings. Call (254) 248-7776.

Related Case Study

Mold Remediation Found During Pre-Sale Inspection — Killeen, TX

Pre-sale inspection flagged mold in a second-floor hall closet. S520 containment, source removal, and third-party clearance in 5 days to keep the closing on schedule.

Read Full Case Study

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