Why is my AC leaking water inside? Here is the honest version: what you can safely check yourself in the next five minutes, what a technician usually finds when it is not that, and exactly what it costs to find out.
By Top Flight Heating, Air & Plumbing, Sussex County, DE. Updated September 27, 2026. Rated 4.9 out of 5 across 522 reviews.
If this means no cooling in the house: A home with no cooling is treated as urgent and prioritized, often same-day. The emergency button on the booking page gets a callback within 60 seconds.
If one of these fixes it, you owe us nothing and we are glad. If not, the next part is what the visit is for.
Water leak. The drain line is blocked with algae or debris, so the water backs up into a pan that is only about an inch deep and then goes over the side. It grows over the months the system sits idle, which is why this turns up at the start of the cooling season rather than in the middle of it.
Evaporator coil. A coil that leaks lets the charge out, and a low charge is what freezes and starves the system. The secondary causes are all airflow: a blocked duct, a dirty filter or a dirty evaporator coil.
These are the causes in the manufacturers' troubleshooting charts and the trade handbooks our technicians train on, in plain words. The visit proves which one it is with a meter before anything is replaced.
What it costs when it is missed is not a repair bill, it is a ceiling.
Dirt on the evaporator coil does two things at once: it cuts airflow and it degrades heat transfer, so capacity drops twice over.
$59 on weekdays, $159 evenings and weekends. Published and final, pre-tax, and the price is the price whether we find a loose wire or a bad motor.
Book the $59 visit online Or call (302) 329-8003Real arrival windows, including evenings and weekends. Paying is what confirms the slot; the office calls to confirm the window.