What Is Included in Standard Aircon Servicing?
Exactly what standard aircon servicing covers in Singapore: filter wash, coil wipe, drainage flush, blower check, cooling test. Step-by-step breakdown.
Standard aircon servicing is the foundation of proper HVAC maintenance in Singapore, yet the scope of what it actually covers varies wildly between providers. Some rush through a quick filter rinse. Others pad the visit with unnecessary extras at inflated prices.
This guide details exactly what a proper per-unit standard service includes, what it does not, and how to tell when your system needs something more intensive.
The standard servicing checklist

Every per-unit standard service follows this sequence, performed in order to ensure consistent results:
- Arrival inspection: Visual check for leaks, ice formation, or physical damage before touching anything
- Drop sheet and workspace prep: Protect your flooring before any dust escapes
- Front cover removal and filter extraction: Safely exposing internal components
- Filter wash and rinse: Under running water with light brushing to clear packed dust
- Evaporator coil surface wipe: Cleaning solution applied to the coil fins in-place
- Blower wheel visual check: Documenting the current state and flagging if biofilm is building
- Drainage tray inspection and wipe: Removing surface-level slime and debris
- Drainage pipe flush: Water passed through the pipe to confirm clear flow
- Outdoor condenser fin clean: Debris and leaves removed from the exterior unit
- Vacuuming: Clearing residual dust that fell during the service
- Reassembly and cooling test: Full running test ensuring discharge air drops 8 to 12 degrees below room temperature
- Handover note: What the technician found, what needs monitoring, and recommendations

The NEA recommends general maintenance every three to four months for optimal efficiency. This cadence prevents biological buildup and keeps electricity bills low. Modern R32 systems in particular need clean coils to maintain their rated energy tick performance.
What standard servicing does not include
Being upfront about exclusions avoids billing surprises:
- Chemical overhaul: The intensive dismantle-and-soak procedure for severe contamination. This falls into chemical wash territory.
- Refrigerant top-up: Only needed when a physical leak exists. Refrigerant operates in a sealed circuit under normal conditions.
- Parts replacement: Capacitors, thermistors, or faulty fan motors require a dedicated repair service diagnosed separately.
- Deep drainage blockage clearing: Persistent biofilm buildup that standard flushing cannot resolve. Chemical treatment resets the system.
- New insulation or copper pipe work: Installation-adjacent work quoted and planned separately.
The distinction between routine preventive care and major interventions is straightforward:
| Feature | Standard Servicing | Chemical Overhaul |
|---|---|---|
| Primary goal | Preventative maintenance | Severe issue resolution |
| Disassembly level | Partial (front panel, filters) | Full dismantle (indoor and outdoor) |
| Typical cost | S$50 to S$115 | S$150 to S$250 |
| Time per unit | 30 to 45 minutes | 90 to 120 minutes |
How per-unit pricing works
Transparent per-unit pricing scales down with quantity. A single wall-mounted unit costs S$50 to service. Bundle pricing for multi-unit visits drops the per-unit cost significantly, with 6 units on a single visit totalling around S$115.
This efficiency works because the logistical travel time stays fixed regardless of how many units the technician services. The savings pass directly to the homeowner.
The Singapore market rate for a single standard service typically ranges from S$45 to S$65. Bundle pricing pushes your effective per-unit cost well below that, making it especially cost-effective for larger HDB flats or small office setups.
What you will not find on our invoices:
- No bundle fees: Straight discounts for higher quantities
- No fuel surcharges: Travel costs are factored into the base rate
- No hidden diagnostics: No surprise inspection fees upon arrival
The price on the WhatsApp quote is the final price.
The 90-day workmanship warranty
Every standard servicing appointment from iCare Aircon includes a 90-day workmanship warranty. If your unit develops a drainage leak from our cleaning, a water drip from a reassembled cover, or a rattling sound from a component we moved, our technician returns to fix the issue at no additional cost.
Water leaking immediately after a standard service typically indicates an improperly seated drainage tray. This is exactly the type of operational error the warranty covers. Many Singapore aircon companies offer zero after-sales support or a minimal 30-day window. Our extended 90-day coverage guards against post-service issues that could damage your walls or flooring if ignored.
When standard servicing is not enough
Standard maintenance cannot resolve severe biological contamination. The technician will recommend a deeper clean if:
- The fan coil has not been dismantled in over two years
- Visible mould appears on the blower wheel or coil
- A thick slime coating covers the drainage tray
- Cooling performance remains poor despite a recent standard service
Singapore humidity averaging above 80% accelerates biofilm growth inside units running 8 to 12 hours daily. When standard servicing reaches its limit, a chemical wash becomes necessary.
Our policy ensures you never pay double if the initial inspection reveals contamination beyond standard scope. If you upgrade to chemical wash on the same visit, you pay only for the chemical wash, not both services.
Book your standard service
WhatsApp iCare Aircon a photo of your units along with your postal code. Our team confirms the appointment and provides a firm, all-inclusive quote within one hour during working hours. No surprises, no hidden charges.
Questions Answered
Frequently Asked Questions
What is the difference between standard servicing and chemical wash?
Standard servicing cleans the filter and coil surface in-place and flushes the drainage pipe, taking 30 to 45 minutes per unit. Chemical wash dismantles the entire fan coil, soaks components in alkaline solution, and reassembles, taking 90 to 120 minutes at higher cost.
Is gas top-up included in standard aircon servicing?
No. Refrigerant operates in a sealed system that should not need topping up under normal conditions. A top-up is only required if there is a leak, and it is priced separately by refrigerant weight.
How long does a standard aircon service take?
Typically 30 to 45 minutes per fan coil unit. A standard 3-unit HDB flat is usually completed in 1.5 to 2 hours from arrival to departure.
LICENSED About the Author
Mr Chong
Founder & Licensed HVAC Technician, iCare Aircon
Mr Chong founded iCare Aircon in Jurong after more than 10 years in Singapore’s HVAC industry. He started as an apprentice technician on HDB rooftops, moved into commercial chiller work, then built iCare Aircon to offer honest, diagnostics-first aircon servicing across Singapore. He holds a BCA-licensed contractor registration, NEA-certified refrigerant handler status, and personally trains every technician on the team. Mr Chong writes these guides to answer the same questions he hears on every job call.
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