Aircond Cleaning for 3 Daikin Units in Bangsar South Condo — Heavy Dust After Renovation

The Customer's Situation

Puan Siti Nur Aisyah had just completed a major renovation of her 3-bedroom condo unit in Bangsar South. New kitchen cabinets, replastered walls, retiled bathrooms — the works. The renovation took about six weeks, and during that time, the contractor had covered the aircond units with plastic sheeting to protect them.

Problem was, the plastic sheeting didn't do a great job. When Puan Siti turned on her three Daikin 1.0HP wall-mounted units after moving back in, she immediately noticed something was off. The aircond in the master bedroom was blowing air that smelled dusty and stale. The living room unit was making a soft rattling sound. And the kids' room unit was barely pushing out any air at all.

She WhatsApped us with photos of the filters — they were completely grey with cement dust and plaster particles. But as we explained to her, the visible filter is just the first line of defence. The real concern after renovation is the dust that gets past the filter and embeds itself in the evaporator coil fins.

Why Renovation Dust Is Especially Damaging to Airconds

Normal household dust — the kind from daily living — is relatively fine and mostly gets caught by the aircond filter. But renovation dust is a different beast entirely. Cement powder, plaster dust, and sanding debris are much finer particles that slip right through standard mesh filters.

Once inside, this fine dust sticks to the wet surface of the evaporator coil (which is always damp from condensation) and forms a hard, paste-like layer. Unlike regular dust that can be brushed off, this cement-dust coating essentially waterproofs the coil fins, preventing air from passing through and heat from being exchanged.

The result? The aircond runs but barely cools. The compressor works overtime. And if left long enough, the blocked drainage can cause water to overflow and leak from the indoor unit — which is the last thing you want in a freshly renovated home.

Our Cleaning Process

Our technician Ahmad arrived at Puan Siti's condo at 9am. After inspecting all three units, he confirmed that a standard aircond cleaning service would be sufficient — the dust contamination was heavy, but there was no mould growth or deep coil corrosion that would require a full chemical wash.

Here's what Ahmad did for each unit:

The Kids' Room Unit — Worst Case

The unit in the kids' room was the worst of the three. When Ahmad removed the front panel and exposed the evaporator coil, it was visually obvious — the coil fins were almost entirely covered in a grey-white paste. Air simply could not pass through.

He spent extra time on this unit, using a coil cleaning solution to soften the hardened layer before hitting it with the pressure washer. The runoff water was thick and grey — Puan Siti was genuinely shocked when she saw what came out.

After cleaning, the difference was immediate. The airflow from the kids' room unit went from barely noticeable to strong and cold. Ahmad measured the outlet air temperature at 13°C — exactly where a healthy 1.0HP Daikin should be.

Before and After Results

• Master bedroom: Dusty smell completely gone. Air outlet temperature dropped from 19°C to 13°C.
• Living room: Rattling noise eliminated. Smooth, quiet operation restored.
• Kids' room: Airflow restored from 20% capacity to full. Room now cools to set temperature within 15 minutes instead of never reaching it.

All three drain pans were flowing freely, and Ahmad tested each unit for 15 minutes to confirm no water leakage. Everything checked out.

Between professional cleanings, simple habits like regular filter washing can extend your unit's performance. Check our maintenance tips between services for easy steps any homeowner can follow.

Pricing Breakdown

Puan Siti paid RM70 per unit for the standard aircond cleaning — a total of RM210 for all three Daikin units. This is our standard pricing for wall-mounted units in the KL area.

We recommended she come back for another cleaning in 2-3 months, since renovation dust tends to linger in the air and settle gradually even after the work is done. Sometimes a second round is needed to catch residual particles that work their way into the system over the following weeks.

Advice for Homeowners Renovating with Aircond

If you're planning a renovation and your condo or house has aircond units installed, here are some tips to minimise damage:

1. Remove the aircond filters entirely during renovation and store them in a sealed bag. The filters will just get clogged and useless.
2. Seal the indoor unit properly — not just with a loose plastic sheet, but with painter's tape along all edges. The goal is to make it airtight.
3. Never run the aircond during renovation. If the contractor needs cooling, use a portable fan. Running the unit pulls dust directly into the coil.
4. Book a professional cleaning immediately after renovation — before regular use. This prevents the dust from hardening on the coils over weeks of operation.

Understanding the difference between regular cleaning and chemical wash can also help you decide which service your aircond needs after renovation.

Curious about what professional cleaning costs in 2026? Our service price guide covers current rates for standard cleaning, chemical wash, and other common services.

Customer Feedback

"I didn't realise how much dust got into the aircond even with the plastic cover. The water that came out during cleaning was so dirty! Now all three units are working perfectly again. Ahmad was very professional and even explained how to protect the aircond better next time. Thank you Total Aircond!"

— Puan Siti Nur Aisyah, Bangsar South