The Real Cost Gap Between General Aircon Cleaning and Overhaul in Singapore
1. Introduction
For most Singapore homeowners, air conditioning isn’t a luxury—it’s survival gear. Yet many only call for servicing when cooling drops or water starts dripping. Understanding the difference between general cleaning and a chemical overhaul helps you spend wisely and extend your unit’s lifespan.
2. Singapore Context
Given the island’s year-round humidity, aircon units here run longer than in most regions. NEA’s energy statistics note that air conditioning can account for 30–40% of a household’s electricity bill. Regular maintenance isn’t just comfort—it’s efficiency and cost control.
3. Why It Matters
When dust, mold, and grease build up in your aircon’s evaporator coil or blower wheel, the unit strains to cool the same space. Over time, this adds wear to the compressor and spikes electricity use. Deciding when to move beyond routine cleaning into a full overhaul can prevent breakdowns that cost far more than a maintenance session.
4. Types of Aircon Cleaning Services
• General Cleaning
This service covers:
- Filter and cover washing
- Condenser vacuuming
- Basic coil wipe
- Drain pan and pipe clearing
Best for light dirt, good airflow, and mild odors.
• Chemical Wash (Light Chemical Cleaning)
A mid-tier option that uses mild cleaning agents without dismantling major parts.
• Chemical Overhaul
A full dismantling of the fan coil unit. Every component—coil, drain pan, blower wheel—is chemically cleaned, rinsed, and reinstalled. It’s designed for aircons that have not been serviced for 9–12 months or show cooling or leakage issues.
5. Step-by-Step: Professional Process
General Cleaning:
- Remove filters and front panel
- Wipe and vacuum coils
- Flush drainage
- Test cooling
Overhaul:
- Dismantle fan coil unit from wall
- Soak coil and parts in chemical solution
- Clear drainpipe and blower
- Rinse, dry, and reinstall
- Check refrigerant pressure and cooling performance
6. DIY vs Professional
You can rinse filters yourself every month, but coil and drainage cleaning require precision tools and refrigerant safety. DIY often skips mold treatment, leaving hidden buildup that worsens odors.
7. Signs You Need an Overhaul
- Weak cooling despite recent service
- Persistent water leakage
- Musty smell even after cleaning
- Fan noise or vibration
- Unit hasn’t been serviced for a year or more
8. Health, Efficiency, and Comfort Benefits
- Improved indoor air quality
- Lower electricity use (up to 15–20%)
- Fewer breakdowns and quieter operation
- Extended lifespan for compressors and PCBs
9. Cost & Frequency in Singapore
| Service Type | Average Price (Per Fan Coil Unit) | Recommended Frequency |
|---|---|---|
| General Cleaning | SGD 25–35 | Every 3–4 months |
| Chemical Wash | SGD 50–80 | Every 6 months |
| Chemical Overhaul | SGD 80–120 | Once every 12–18 months |
Prices vary depending on brand, system type (System 1–4), and accessibility. For a full overhaul, most professionals include testing and minor parts adjustment.
10. Key Benefits Summary
| Aspect | General Cleaning | Chemical Overhaul |
|---|---|---|
| Cost | Lower | Higher |
| Depth | Surface-level | Complete dismantle |
| Effectiveness | Basic dirt removal | Restores cooling efficiency |
| Duration | ~30 mins | ~1.5–2 hrs |
| Best For | Regular upkeep | Performance restoration |
11. FAQ
Q1: Is a chemical overhaul necessary every year?
Not always. For well-maintained units, every 18–24 months is sufficient.
Q2: Can I just do chemical wash instead of overhaul?
Yes, if your system is still cooling well and shows no leaks.
Q3: Will overhaul damage my unit?
When done by trained technicians, it’s safe. The chemicals used are neutralized and rinsed thoroughly.
Q4: Why do prices vary so much between companies?
Differences come from technician expertise, included services, and warranty terms.
Q5: Does overhaul improve energy efficiency?
Yes. Clean coils transfer heat better, reducing compressor load and power use.
12. Conclusion
A general cleaning keeps your aircon breathing. A chemical overhaul restores it to peak form. Understanding the gap helps you plan smarter maintenance—not overpaying for light dust, yet not delaying when deep cleaning is due.
For trusted servicing and transparent pricing in Singapore, visit ACX WORKS — your local specialists in aircon cleaning Singapore.
