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 1–3 months | Every 6 –1 years | Every 1–2 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 Maintenance Service
Starting from RM 110 for 1 unit (RM 90/unit for 3–4 units) Time: approximately 30–45 minutes per unit Recommended: every 1–3 months
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) Time: approximately 30–45 minutes per unit. Recommended: every 6 Months –1 years
So what is chemical service for aircon, exactly? It’s a deep clean using professional-grade chemical solution to dissolve mould, bacteria, calcium deposits, and years of grime that a normal service cannot touch — especially inside the evaporator coil and blower wheel.
When comparing chemical wash vs general servicing aircon, the key difference is penetration. General cleaning removes surface dust. Chemical wash removes what’s embedded deep inside the unit, the stuff that causes bad smells, weak airflow, and water leaks.
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) Time: approximately 60–90 minutes per unit Recommended: every 1–2 years, or when chemical wash alone isn’t enough
When comparing aircon chemical wash vs chemical overhaul, the main difference is disassembly. Chemical wash cleans the unit while it stays mounted on the wall. Chemical overhaul goes further; the entire indoor unit is taken apart so every internal component can be individually cleaned, inspected, and reassembled.
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 1–2 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 3 months ago, unit working fine → General Cleaning (RM 110)
Aircon smells, airflow is weak, or it hasn’t been serviced in 6 moths + → Chemical Wash (from RM 150)
Unit not been serviced in 1+ year, 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
Book online via whatsApp: https://www.myaccool.com
- Free transportation.
- No hidden charges.
- 30-day warranty (water leaking) on chemical services.
