Why is my AC leaking water inside the house?

The most common cause is a clogged condensate drain line. Other possibilities include a cracked drain pan, a frozen evaporator coil thawing, or an improperly installed drain line. We'll diagnose the exact cause and fix it.

How much does drain line clearing cost?

Drain line clearing is a routine service — typically $100 to $200. If we discover a cracked pan, damaged line, or missing safety switch, we'll quote those repairs separately.

How can I prevent drain line clogs?

Pour a cup of distilled white vinegar into the drain access point once a month during cooling season. This inhibits algae and mold growth. Also, schedule annual AC maintenance — drain line clearing is part of our standard tune-up.

AC Drain Line Clogged — Water Leak Prevention

AC leaking water? A clogged condensate drain line is the most common cause — fast cleanup and repair in WNC.

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Professional AC Drain Line Clogged — Water Leak Prevention in Asheville & Western NC

Where All That Water Comes From

Your air conditioner doesn't just cool air — it removes humidity. On a typical Western NC summer day, a residential AC system can pull 5-20 gallons of water from the air. That moisture collects on the evaporator coil, drips into the drain pan, and flows out through the condensate drain line. When that line clogs with algae, mold, or debris, water backs up into the drain pan and eventually overflows — potentially causing ceiling damage, wall damage, and mold growth inside your home.

Clearing the Clog and Preventing Future Problems

We clear clogged drain lines using wet/dry vacuum, nitrogen flush, or mechanical clearing depending on the severity and location of the blockage. After clearing, we treat the line with an anti-microbial solution to inhibit future algae and mold growth. We also inspect the drain pan for cracks or rust and verify the safety float switch (if installed) is functioning — this switch should shut down the AC if the drain backs up, preventing water damage.

A Maintenance Item Most Homeowners Forget

Drain line maintenance is included in our AC tune-ups, but between service visits, you can pour a cup of distilled vinegar down the drain access point monthly during cooling season to keep things flowing. If you're seeing water around your indoor unit, don't wait — call us for repair before minor water damage becomes a major remediation project.