Water dripping from your indoor AC unit onto the wall, floor, or worse — your bed — is one of the most common AC complaints in Islamabad every summer. The good news: it’s usually a cheap fix. The bad news: ignoring it damages your wall paint, furniture, and eventually the AC itself. Here’s what causes it and what repair actually costs.
Why Your AC Leaks Water — 6 Real Causes
1. Blocked drain pipe (most common — 70% of cases)
Your AC removes humidity from the air, and that water exits through a drain pipe. Dust, sludge, and even insects block this pipe over time, and water backs up into the indoor unit until it overflows. Islamabad’s dusty dry season makes this blockage faster.
2. Dirty air filters
Clogged filters restrict airflow, which makes the cooling coil too cold and freeze. When the ice melts, it produces more water than the drain tray can handle.
3. Low refrigerant gas
Low gas also causes coil freezing — same melting-overflow result. If your AC is leaking AND cooling poorly, gas is the likely culprit.
4. Wrong installation slope
The indoor unit must tilt very slightly toward the drain side. If installed level or tilted wrong, water pools and drips from the body. Common with cheap installations.
5. Broken/cracked drain tray
The plastic tray under the coil cracks with age; water then drips straight through.
6. Outdoor unit pipe issues (split ACs)
If the drain pipe outlet is bent upward or crushed, water can’t exit.
AC Water Leakage Repair Cost in Islamabad (2026)
| Repair | Approx. Cost (PKR) |
|---|---|
| Drain pipe cleaning/unblocking | 1,000 – 2,000 |
| Full AC service (fixes most leakage) | 1,500 – 2,500 |
| Drain tray replacement | 1,500 – 3,000 |
| Gas leak repair + charging | 5,000 – 9,000 |
| Re-installation (slope correction) | 2,500 – 4,000 |
Most leakage cases are resolved within a standard service visit.
Can You Fix It Yourself?
Two things are safe to try before calling anyone:
- Clean the filters — open the front panel, remove filters, wash with water, dry, reinstall. Takes 10 minutes.
- Check the drain pipe outlet (outside the wall) — if it’s bent, crushed, or blocked at the mouth, straighten/clear it.
If water still leaks after both, the blockage is deeper in the pipe or the cause is gas/tray related — that’s a technician job. Poking wires into the drain pipe yourself often pushes the blockage deeper.
Don’t Delay — What Leakage Damages
- Wall paint and plaster (dampness spreads fast)
- The AC’s own PCB if water tracks toward electronics
- Wooden furniture and flooring beneath the unit
- Coil corrosion if freezing repeats for weeks
By the way — if your AC also cools poorly at normal settings, check our best AC temperature guide to rule out settings issues first.
AC Leakage Repair in Islamabad — Same Day
Muhammad Technical Services fixes AC water leakage across Islamabad — drain cleaning, tray replacement, gas check, and slope correction, usually in a single visit. Our technician diagnoses the actual cause first, so you don’t pay for gas charging when the problem was a 1,000-rupee drain cleaning.
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Frequently Asked Questions
AC se paani kyun tapakta hai?
Sab se common wajah drain pipe ka block hona hai — 70% cases mein yehi masla hota hai.
AC leakage theek karwane ka kharcha kitna hai?
Islamabad mein drain cleaning PKR 1,000–2,000 aur full service PKR 1,500–2,500 mein ho jati hai.
Kya AC leakage khud theek kar sakte hain?
Filter dho kar aur bahar wali drain pipe check kar ke dekh lein — masla rahe to technician bulayein.