Hidden Danger: How a Clogged AC Drain Line Can Damage Your Ceiling or Walls
Arizona homeowners rely on air conditioning nearly year-round—but did you know your AC system can cause serious water damage if its drain line clogs or leaks?
💧 What Is an AC Drain Line?
Your AC system doesn’t just cool the air—it also pulls moisture from it. That condensation collects in a drip pan and drains out through a PVC line, usually routed through the attic or wall space. If this line gets clogged with dirt, algae, or dust, water backs up—and has nowhere to go but down.
🚨 What Can Go Wrong?
When that water overflows or leaks from the pipe, it can:
Soak ceiling drywall and insulation
Drip down interior walls
Cause bubbling paint or peeling textures
Lead to hidden mold growth
Create musty odors and ongoing humidity issues
🧰 What to Watch For
Water stains on the ceiling or near vents
Dripping sounds when the AC runs
Increased indoor humidity
Sudden moldy or mildew smell
🛠 What To Do Next
Turn off your AC if you suspect a leak
Check the drain pan and line (or call an HVAC tech)
Contact Unified Restoration if there’s visible water damage—we’ll inspect and dry affected ceilings, walls, and insulation before mold takes hold
🔧 Need a Pro?
We work with trusted local HVAC partners for system repairs and maintenance. Our team specializes in water damage restoration and can help you get your home back to normal—fast.
Serving Phoenix, Mesa, Chandler, and surrounding areas.
💬 Suspect water damage from your AC? Contact us today.
