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Technician fitting the wall bracket for a split system indoor unit

Common problem

Air Conditioner Leaking Water in Mitcham

Water dripping from an indoor unit is one of the most common air conditioner faults we attend in Mitcham. Mitcham Air Conditioning traces the cause fast and quotes the fix upfront.

Technician servicing the inside of an outdoor air conditioning unit

A Trusted Local Team for Air Conditioner Leaking Water Repairs in Mitcham

We are a family-owned business with ten years on the tools across Greater Adelaide, a full ARC refrigeration and air conditioning licence, and 500+ five-star reviews. We work across Mitcham most weeks, and we know the older housing stock here well.

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Smiling technician beside an outdoor unit at the side fence

What a Leaking Aircon Unit Looks Like

A drip from the indoor head, a wet patch on the floor beneath it, or staining on the ceiling below the unit all point to the same family of faults. Most are drainage problems, not dying compressors.

It is condensate, not a water supply fault. A refrigerated system pulls moisture out of the air as it cools, and that water has to run away through a small pipe. When something stops that flow, the tray fills and overflows into your home.

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Common Causes of Water Leaks in Air Conditioning

Cheapest first, because the cause decides the cost:

Blocked condensate line

Dust, sludge and occasionally insect nests stop the flow, and the tray overflows. This is the most common cause we see.

Dirty filters or coil

Restricted airflow can freeze the coil, and the melt later drips where it should not.

Disconnected or crushed condensate pipe

Older homes around the village often have pipes threaded through tight roof cavities, and a knocked pipe lets water run into the ceiling space.

Rusted or cracked drain pan

A unit that has run for many years can lose its tray, and the fix is a replacement rather than a clean.

Poor install level

An indoor head set slightly wrong never drains properly and will leak from day one.

Safe Checks Before You Call for Aircon Repairs

A couple of checks are safe for any homeowner. Turn the system off at the wall first, then look underneath the indoor unit for the wettest point, because that tells us a lot on the phone.

Check the filter

If it is reachable and filthy, cleaning it may settle the fault if the coil has been icing up.

Leave the panels alone

Do not open anything beyond the filter, and never poke a snake or hose into pipework you cannot see the end of.

Anything past that needs a licensed technician, and our air conditioning cleaning page explains what a proper service covers.

Do not wait on this

When a Cooling System Leak Needs Urgent Attention

Some leaks can wait a day. These cannot:

  • Water dripping onto a ceiling, light fitting or electrical outlet
  • A leak that appears the same day the unit starts blowing warm air, which can point to an iced coil
  • Staining that is spreading across plaster, because plaster repair costs far more than the drain fix

We offer 24/7 emergency availability, and our Within-the-Hour Response covers urgent issues where availability allows. If water is heading for wiring, ring us straight away on (08) 8246 6282.

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How it works

How We Fix Aircon Water Leaks

Every leak gets traced to its actual cause before anything is replaced, because a tray swap will not fix a blocked line and a flush will not fix a rusted pan.

  1. Step 1: Find the source

    We run the system, watch where the water enters your home and work back to the fault. On 1940s to 1960s brick homes around St Michael's Anglican Church, that often means checking condensate runs through tight roof cavities.

  2. Step 2: Clear or repair

    A blocked condensate line gets flushed and treated so the sludge does not return next summer. A crushed pipe, rusted pan or badly set unit gets repaired or re-set properly rather than patched.

  3. Step 3: Test before we leave

    We run the system through a full cooling cycle and confirm water is draining outside, not into your ceiling. You get the price in writing before any work starts, and if a fault later comes back to workmanship, our Lifetime Labour Warranty covers the return visit at no cost.

  4. Step 4: Prevent the next one

    If the blockage came from years of dust build-up, we will tell you honestly whether a seasonal service would keep it clear, and what that costs, without pushing a replacement you do not need.

Questions

Air Conditioner Leaking Water FAQs

Can I keep running the aircon while it leaks?

Switch it off at the wall first, because running a unit with a blocked condensate line can push water into the ceiling or wall cavity and turn a small job into a repair across two rooms.

How quickly can you attend a leaking unit?

We offer 24/7 emergency availability across Mitcham, and our Within-the-Hour Response covers urgent issues where availability allows, so a leak onto a ceiling does not have to wait for Monday.

Why does my unit leak more in summer?

A refrigerated system pulls a lot of moisture from hot dry air during a heatwave, so the condensate line carries far more water, and any partial blockage shows itself within a day or two of 38-degree runs.

Will you quote before starting the work?

Yes, our Fixed Upfront Pricing means you get a fixed quote before any work starts, with no hourly rates and no bill shock, so you know the full cost before we lift a tool.

Talk to a local

Stop That Drip Today and Call Your Local Mitcham Air Conditioning Team

A leak never improves on its own, and every extra day risks your plaster and wiring. Ring (08) 8246 6282 any hour, tell us where the water is showing, and we will get a licensed technician out with the parts to fix it. New customers get $50 off first service.

Call (08) 8246 6282 Request a fixed quote

$50 off first service for new customers.

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