Clearance testing in Katy is the post-remediation assessment that checks the work area against the protocol written before removal, and in Texas it must come from the consultant who wrote that protocol. Once it passes, rebuilding can start and the remediation contractor owes you a Certificate of Mold Damage Remediation. Call the number on this page to be connected with a local mold inspector in Katy.

Katy at a glance
Katy sits where Harris, Fort Bend and Waller counties meet, about 19 miles from Houston along I-10. Cane Island Creek, a branch of Buffalo Bayou, runs through the area, and the surrounding prairie carries Buffalo Bayou's floodplain and tributaries. Add slow-draining clay soil, a long cooling season and attic AC equipment in many newer homes, and most mold jobs here come back to water that lingered. That matters for clearance, because the final check only means something if the moisture behind the growth is gone too.
Steps to take now
- Confirm the consultant. The mold assessment consultant who wrote your protocol is the only one who can declare clearance. Look up both companies on TDLR's license search.
- Keep the room as it is. Containment, bare framing and cleaned surfaces stay untouched until the visit.
- Read the criteria. The protocol spells out what passing means: visual standards, moisture readings, sampling or a mix.
- Fix the cause first. A roof leak, a clogged condensate line or a slab-edge water path will defeat a clean result.
- Line up the rebuild. Inside city limits, the City of Katy Permit and Building Services Division requires permits for remodeling. Katy-addressed homes outside the city fall under Harris, Fort Bend or Waller County instead.

What you see and the likely cause
| What you see | Likely cause |
|---|---|
| Fresh dark spotting on a sill plate after cleaning | Water still wicking from outside or below |
| Musty air from supply vents | Ducts or air handler outside the remediated area |
| Fine dust in nearby rooms | Containment or air filtration that slipped |
| Damp insulation at the top plate | Attic moisture or a roof leak above |
Cost factors
Angi's Houston cost data reports inspection and testing averaging $453, typically $355 to $563. The size of the protocol, how many samples the clearance criteria require, and whether the return visit is bundled all shift the price. A failed area adds another round of remediation and assessment. In Texas, you pay the consultant and the remediation contractor separately. After a pass, expect the before-and-after photos and the Certificate of Mold Damage Remediation within 10 days of the project stop date; for a home, that certificate can help keep an insurer from making an adverse underwriting decision based on the past mold damage.
Post-Remediation Clearance Testing questions in Katy
Who decides what passing looks like?
The job is finished but I never received a CMDR. What should I do?
Should the air conditioning be part of the clearance check?
What does clearance testing cost near Katy?
More mold services in Katy
Post-Remediation Clearance Testing nearby
Sources
- TDLR: Mold Assessors and Remediators FAQs
- TDLR: License Search
- 16 Tex. Admin. Code 78.150: Photographs; Certificate of Mold Damage Remediation; Duty of Property Owner
- Angi: Compare Quotes from Mold Inspectors & Testing Services (Houston, TX)
- EPA: Mold Cleanup in Your Home
- City of Katy: Permits and Building Services
- Wikipedia: Katy, Texas
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