Summer HVAC Water Leaks in Central Texas Homes
Central Texas summers run AC systems near continuous capacity. Clogged condensate drain lines overflow into attics, ceilings, and HVAC closets — and the leak often runs for days before anyone notices. Water damage from HVAC condensate is one of our most common summer calls.
How HVAC leaks happen
Your AC's evaporator coil removes humidity from the air. That water drains through a condensate line — usually PVC — out of the house. When the line clogs with biofilm or debris, water backs up and overflows.
Older homes often have condensate drains routed through attic spaces or closets with no secondary safety pan — so overflow drips onto insulation, drywall, and eventually visible ceilings.
Warning signs
Water stain spreading on a ceiling below the attic. Musty odor when the AC first kicks on. Visible water near the indoor HVAC unit. Unusually high humidity indoors despite the AC running. AC running but not cooling as effectively.
Prevention + response
Have your HVAC system serviced annually — the condensate line should be flushed every spring. Install a safety float switch that shuts off the AC if the pan fills.
If damage has already occurred: shut off the AC, photograph the extent of water damage, and call (254) 248-7776. Attic insulation is usually a total loss; ceiling drywall often is too.