Black Mold Removal in Cypress, TX

Signs to watch for

• Dark blotches at the base of walls on the first floor
• Black specks around ceiling registers or on the return filter frame
• Stains on the ceiling below an upstairs bathroom or attic unit
• A musty odor in a closet that never quite airs out
• Laminate or vinyl flooring that has cupped or lifted

What makes Cypress homes prone to it

Cypress is a large unincorporated area in northwest Harris County, about 20 miles from downtown Houston, that turned from farmland into master-planned subdivisions from the 1980s onward. Cypress Creek and Little Cypress Creek run through it. The Harris County Flood Control District listed Cypress among the hard-hit communities in the April 2016 Tax Day flood, and some of the same homes flooded again on Memorial Day 2016. During Hurricane Harvey, about 30 inches of rain fell along Cypress Creek, and neighborhoods such as Norchester and Lakewood Forest and areas near FM 529 took significant water while many other parts of Cy-Fair stayed dry.

Homes that flooded more than once are the most likely to hide dark growth inside walls that were dried but not opened. Even in homes that never flooded, two-story houses with attic air handlers, long duct runs and a cooling season that lasts most of the year produce steady condensation. Dark mold on vents is often a sign of that, not of a hidden flood problem.

What it costs in the Houston area

Angi's Houston cost data averages $2,016 for mold removal, with a typical range of $863 to $3,329. National figures from HomeGuide for 2026 put HVAC or duct mold work at $2,000 to $10,000, so growth that has spread into the air system can cost more than a wall section. Add the separate fee for the assessment consultant, which Texas law makes a separate company from the remediator.

What happens when you call

You describe the growth and are connected with an independent company serving Cypress. For a project that needs professional removal, a mold assessment consultant who holds a TDLR license writes the protocol, a separate remediation company carries it out, and the consultant returns to confirm clearance before you rebuild. Replacing walls in unincorporated Harris County requires a permit from the Office of the County Engineer, and you can check your floodplain on the Harris County Flood Education Tool.