Post-Flood Mold Removal in Humble, TX

Signs of mold after a Humble flood

• A waterline on the walls with darkening drywall below it
• Bubbling paint or wallpaper peeling at the bottom edge
• A heavy, musty smell when you open closets or cabinets
• Mold on the underside of furniture that sat in water
• Soft spots in the floor or baseboards pulling away

Humble's flood exposure

Humble is a small city in northeast Harris County, about 17 miles from downtown Houston, that grew as an oil boomtown after 1904. During Hurricane Harvey the San Jacinto River and Cypress Creek both breached their banks, flooding roads, bridges and homes. The river covered parts of Interstate 69 and crested above 68 feet, and there were rescues in the Northshire subdivision. The city manager later said 340 homes in Humble were affected and that many owners lacked flood insurance. That last point matters for mold work, because owners paying out of pocket often try to dry walls in place that really need to be opened. Between floods, the same humid climate and an AC that runs most of the year mean a wall that was soaked once and closed up too early can keep feeding growth for months.

What affects the cost

Angi's Houston cost data reports an average of $2,016 for mold removal, typically $863 to $3,329. National ranges (HomeGuide, 2026) list $6,000 to $15,000 for 300 to 1,000 square feet. In Humble, the price depends on:

• How much of the house took water and how high it rose
• Days before drying began
• Cabinets, stairs and built-ins that must be removed
• Containment to protect unflooded rooms and the HVAC
• Separate assessor fees for the protocol and clearance

What happens when you call

Your call reaches an independent remediation company that serves Humble. It will ask about the water and the drying so far, and explain that a mold assessment consultant from another company writes the protocol first. For 25 contiguous square feet or more, the remediator notifies TDLR five days before starting. After removal, the consultant checks clearance and you receive a Certificate of Mold Damage Remediation. Rebuilding goes through the City of Humble Building Department at City Hall, which requires plans for floodplain work and interior remodels.