Is your AC spreading mold through your East San Antonio home? SERVPRO explains how to handle it this Spring
San Antonio, United States - May 1, 2026 / SERVPRO of East San Antonio /
East San Antonio, TX, April 9, 2026 – SERVPRO® of East San Antonio announced expanded 24/7 emergency response capacity this week as Bexar County enters May, the region's wettest and most humid month of the year. The expansion comes as the company reports a 35% year-over-year increase in emergency mold remediation calls tied to HVAC systems during the spring humidity peak.
San Antonio's May humidity levels reach 71%, the highest average of any month, according to National Weather Service data. Combined with an average 3.5 inches of rainfall, these conditions create ideal environments for mold growth inside air conditioning systems, drain pans, and ductwork – particularly in homes restarting AC units after winter dormancy.
"We're seeing homeowners discover mold issues within days of starting their AC systems for the season," said Billy R. Maggard Jr., franchise owner of SERVPRO of East San Antonio. "The combination of accumulated moisture, dust buildup during winter months, and sudden humid air circulation creates a perfect storm for rapid mold colonization in evaporator coils and ductwork."
The Environmental Protection Agency reports that indoor air can be 2 to 5 times more contaminated than outdoor air, with mold spores, bacteria, and viruses thriving in environments above 60% humidity – a threshold San Antonio consistently exceeds from May through September.
Why spring in East San Antonio encourages mold growth
Spring increases indoor moisture levels, which allows mold to grow on walls, floors, ceilings, and inside HVAC systems. Warm and humid air provides a surface for mold spores to thrive, particularly in areas with limited ventilation.
Increased humidity and moisture buildup
Warm, humid air can settle in common areas of the home:
Bathrooms and kitchens from showers and cooking
Laundry rooms with damp clothes
Basements or crawl spaces that trap moisture
The team uses moisture detection tools to locate these hidden areas and reduce the risk of mold growth before it spreads.
HVAC systems are vulnerable to mold development
Mold can grow inside AC units, evaporator coils, drain pans, and ductwork. Dust and debris inside these areas provide a food source for mold. Their professionals inspect and clean these components thoroughly, treating hidden areas to stop mold from circulating through the home.
Seasonal AC usage contributes to mold issues
Starting AC systems for the first time in spring can activate mold already present in dust and moisture. The company recommends early seasonal inspections to prevent small problems from turning into larger contamination issues.
How SERVPRO handles mold in AC systems
Evaporator coils: Cleaned and sanitized to remove mold and limit future growth.
Drain pans and drip lines: Standing water is cleared, treated with antimicrobial solutions, and monitored for proper drainage.
Air ducts and vents: Mold is removed using HEPA-filtered vacuums and air scrubbers to capture spores before they spread.
Dust and debris inside units: Removed, and components sanitized to reduce conditions for mold growth.
Hidden mold behind panels or insulation: Inspected and treated using containment and advanced removal techniques.
Overall impact: Addressing all key areas directly stops mold from spreading and protects indoor air quality.
Professional Mold Remediation Process
The company follows a structured approach to handle AC-related mold:
Detailed inspection and assessment
Technicians inspect visible and hidden areas, including ducts, coils, drain pans, and surrounding spaces, to locate moisture and mold.
Containment of affected areas
Affected sections are isolated using plastic barriers and negative air pressure to prevent spores from spreading during the mold clean-up.
Advanced filtration and removal techniques
HEPA vacuums, air scrubbers, and filtration equipment remove both visible and hidden mold spores.
Deep clean-up and sanitization
All components, including coils, ducts, and drain pans, are cleaned and treated with safe antimicrobial solutions as part of thorough mold removal and clean up process to reduce future growth.
Restoration and preventative measures
Damaged components are repaired or replaced, and adjustments are made to reduce moisture accumulation. Regular maintenance recommendations are provided to prevent recurrence.
Preventing mold growth in HVAC systems
The company advises homeowners to follow practical steps to minimize mold risk during spring:
Replace filters regularly to keep airflow clean
Clean drain lines and pans to prevent standing water
Schedule professional inspections for hidden issues
Manage indoor humidity with dehumidifiers or AC adjustments
Keep vents and ductwork clear to maintain airflow
Addressing water leaks or spills promptly is also critical to reducing mold growth and the need for remediation.
When home owners should call for professional mold services
Professional mold remediation is recommended for:
Mold inside HVAC systems that circulates spores
Persistent mold problems after home cleaning
Large or hidden contamination in walls, floors, or ducts
After water damage or storms that leave moisture behind
Protect your home from mold: Contact SERVPRO now
Protect your home from AC-related mold this spring with the help of SERVPRO of East San Antonio. Their trained professionals are available 24/7 to provide thorough mold remediation, mold removal, and full cleanup services.
Call to schedule a consultation or request emergency service. Let the team tackle mold quickly, keeping your home clean, safe, and comfortable.
About SERVPRO of East San Antonio
SERVPRO of East San Antonio specializes in emergency restoration and cleaning services for residential and commercial properties in East San Antonio and Bexar County, Texas. Established in September 2019, the locally owned and operated franchise provides 24/7 emergency response for water damage, fire damage, mold remediation, storm damage, and specialty cleaning services. The company's IICRC-certified technicians use advanced equipment and proven techniques to restore properties affected by disaster. SERVPRO of East San Antonio is part of the SERVPRO franchise system, a trusted restoration brand serving communities since 1967. The company is located at 2730 S Foster Rd, San Antonio, TX 78220.
Media Contact:
Billy R. Maggard Jr.
Franchise Owner
SERVPRO of East San Antonio
Phone: (210) 757-0275
Email: office@servpro11423.com
Contact Information:
SERVPRO of East San Antonio
2730 S Foster Road
San Antonio, TX 78220
United States
Billy Maggard
(210) 757-0275
https://www.servpro.com/locations/tx/servpro-of-east-san-antonio
