Aircond Chemical Wash vs Normal Service vs Chemical Overhaul, What’s the Difference?
Aircond Chemical Wash vs Normal Service vs Chemical Overhaul, What’s the Difference? Still not sure which aircon service you actually need? You’re not alone. Most people book a “service” without knowing there are three very different types, and choosing the wrong one either wastes your money or leaves your aircon just as dirty as before.

Aircond Chemical Wash vs Normal Service vs Chemical Overhaul, What’s the Difference?
Still not sure which aircon service you actually need?
You’re not alone. Most people book a “service” without knowing there are three very different types, and choosing the wrong one either wastes your money or leaves your aircon just as dirty as before.
Here’s the honest breakdown.
The Short Answer
People often search for “aircon chemical wash vs chemical overhaul” or “chemical wash vs chemical overhaul” without realising there’s actually a third option, the basic normal service. Here’s how all three compare at a glance:
|| |General (Normal) Service| |Chemical Wash| |Chemical Overhaul|
|---|
Unit dismantled? No No Yes |
Chemicals used? No Yes Yes |
Outdoor unit cleaned? No Yes Yes |
Gas top-up included? No Yes (20 psi) Yes (20 psi) |
Water leak fix included? No Yes Yes |
Warranty None 30-day water leak 30-day water leak |
Time to complete 30–45 min/unit 45–60 min/unit 60–90 min/unit |
Recommended frequency Every 3–6 months Every 1–2 years Every 2–3 years |
Starting price (1 unit) RM 110 RM 150 RM 268 |
Best for Regular upkeep Dirty/smelly units Long-neglected units |
Option 1: General Cleaning, Your Regular Normal Service
Starting from RM 110 for 1 unit (RM 90/unit for 3–4 units)
Think of this as the basic wash your aircon needs every 3–6 months to stay healthy. No chemicals. No dismantling. Fast, clean, and straightforward.
What’s included:
Air filter cleaning
Front cover and panel cleaning
Blower and fan cleaning
Drainage system check
Basic performance check
Who needs this: If your aircon is cooling well, doesn’t smell, and you just want to keep it in good shape, this is the right service. It’s the most affordable option and ideal for units that are serviced regularly.
What it won’t fix: If your aircon smells musty, is leaking water, isn’t cooling properly, or hasn’t been serviced in over a year, general cleaning alone won’t solve the problem. You’ll need one of the services below.
Note: General cleaning comes with no warranty. It’s a maintenance service, not a repair.
Option 2: High-Pressure Chemical Wash, The Deep Clean
Starting from RM 150 for 1 unit (wall-mounted 1.0–1.5hp)
This is the most popular service for a reason. Chemical wash goes where a regular clean can’t, flushing out mould, bacteria, calcium buildup, and years of accumulated grime using professional-grade cleaning agents.
Unlike general cleaning, your unit does not need to be dismantled. Our technicians use high-pressure water and chemical solution to flush the evaporator coil, blower, and drainage system, then test everything before they leave.
What’s included:
Full indoor and outdoor unit wash
Chemical cleaning of blower, filter, and coil flushing
Water leaking fix (worth RM 130, included free)
Free gas refill up to 20 psi
Free transportation, toll, and parking
30-day water leaking warranty
No hidden charges
Chemical Wash Prices
Wall-mounted 1.0hp & 1.5hp:
|Units| |Price per unit|
|---|
1 unit RM 150 |
2 units RM 135/unit |
3–4 units RM 130/unit |
5+ units RM 125/unit |
Wall-mounted 2.0hp & 2.5hp:
|Units| |Price per unit|
|---|
1 unit RM 180 |
2 units RM 165/unit |
3–4 units RM 155/unit |
5+ units RM 150/unit |
Who needs this:
Your aircon smells musty or mouldy
Airflow feels weaker than it used to
The unit hasn’t been properly serviced in 1–2 years
You want a thorough clean without the higher cost of overhaul
Your unit is leaking water
Option 3: Chemical Overhaul, The Full Restoration
Starting from RM 268 for 1 unit (RM 227/unit for 3+ units)
This is the most thorough aircon service available. Everything in the chemical wash, plus the indoor unit is fully dismantled for cleaning. The blower wheel, evaporator coil, drainage tray, and housing are cleaned individually, then reassembled and tested.
If chemical wash is a deep clean, overhaul is a complete restoration.
What’s included:
Full indoor unit dismantle
Chemical cleaning of all internal components (blower, filter, coil flushing)
Full indoor and outdoor unit wash
Water leaking fix
Free gas refill up to 20 psi (1.0–1.5hp; 2.0hp and above: RM 2/psi)
Free transportation
30-day water leaking warranty
Chemical Overhaul Prices
|Units| |Price per unit|
|---|
1 unit RM 268 |
2 units RM 241/unit (10% off) |
3+ units RM 227/unit (15% off) |
Who needs this:
Your aircon hasn’t been serviced in 2–3 years or more
Chemical wash has been done but the unit is still not performing well
There’s visible mould or black deposits on the blower wheel
You want the most thorough clean possible before a new tenancy or renovation
Your aircon is still under warranty and you want to keep it in peak condition
Which Service Do You Actually Need?
Not sure? Use this simple guide:
Last serviced less than 6 months ago, unit working fine → General Cleaning (RM 110)
Aircon smells, airflow is weak, or it hasn’t been serviced in 1+ year → Chemical Wash (from RM 150)
Unit not been serviced in 2+ years, visible mould, or chemical wash hasn’t fully fixed the problem → Chemical Overhaul (from RM 268)
Still not sure? WhatsApp us a photo or video of your unit and our team will tell you honestly which service you need, no upselling, no guesswork.
Why More Units = More Savings with MY AC COOL
Got a landed house with 4–5 units? Or a condo with multiple rooms? The more units you service in one visit, the less you pay per unit across all three service types.
For example: 5 units of chemical wash (1.5hp) = RM 125/unit instead of RM 150. That’s RM 125 saved in one booking.
Book Your Aircon Service Today
MY AC COOL serves homes and offices across Kuala Lumpur, Selangor, and Negeri Sembilan. Our certified technicians arrive on time, work cleanly, and don’t leave until the job is done right.
WhatsApp us to book: [018-400 6624] **Or **
Book via WhatsApp online: [myaccool.com]
Free transportation. No hidden charges. 30-day warranty on chemical services.


