Why This Matters in Georgetown TX
Georgetown TX sits at the intersection of continental and Gulf air masses, producing humidity spikes especially May through July and during weather system transitions. Indoor relative humidity above 55% creates mold conditions, wood movement in cabinets and floors, and general discomfort even at comfortable temperatures. Your AC system is your primary dehumidifier — but it can fail at that job while still controlling temperature, causing homeowners to believe everything is working fine.
Common Causes & What They Cost
Our Georgetown technicians diagnose these issues daily. Here's what we find most often.
An oversized AC reaches temperature setpoint too quickly and shuts off before completing a full dehumidification cycle. The space is cool but humid. This is the most common cause of persistent humidity problems in Georgetown new construction where builder systems are sometimes oversized.
$4,500–$7,500 for properly sized replacement; $200 for Manual J to confirmRefrigerant running low reduces the evaporator coil's ability to condense moisture out of the air. The coil runs warmer, collecting less condensation. Indoor humidity rises even though temperature control seems normal.
$150–$350 for rechargeA blower running too fast moves air across the evaporator coil too quickly for efficient dehumidification. Many Georgetown systems are set to high-speed at installation for quick temperature response — reducing blower speed can dramatically improve humidity control.
$85–$150 blower speed adjustmentA coil fouled with biological growth or dust reduces condensation surface area. The coil can't collect as much moisture from the air, and whatever moisture is collected may re-evaporate.
$150–$280 for coil cleaning and treatmentFor Georgetown homes with persistent humidity problems despite a properly functioning AC, a dedicated whole-house dehumidifier (integrated with the air handler) is the definitive solution. It operates independently of cooling demand.
$1,200–$2,200 installed for whole-house dehumidifierHow We Diagnose It
We measure indoor RH at multiple locations. Target is 40–55% RH. Above 60% RH indoors with AC running indicates a genuine problem.
Low refrigerant is the most common cause of humidity failure. We test pressure and charge immediately.
We verify blower speed setting and calculate average run cycle length. Short cycles (under 10 minutes) indicate oversizing.
We inspect evaporator coil condition and test for biological growth. A coil treatment may resolve humidity issues related to reduced condensation surface area.