El Paso's monsoon season runs June through September, delivering intense bursts of one to two inches of rain in a single hour. Older adobe and brick construction in central and lower-valley neighborhoods is especially vulnerable to moisture wicking when original waterproofing has degraded.
Evaporative coolers widely used in El Paso summers pump continuous moisture into homes; if ducts leak into attic spaces, indoor humidity can exceed 60 percent — enough for Aspergillus and Stachybotrys to thrive. Slab plumbing leaks also wick moisture upward under tile and carpet with no visible water event.
Texas requires any mold remediation project over 25 contiguous square feet to be performed by a contractor licensed through the Texas Department of State Health Services. Verify the license number on the DSHS online lookup before signing any contract, and ask for the independent post-remediation clearance report in writing.