Price Guide · 2026
Aircon Chemical Overhaul Price Singapore | From S$280 (2026)
How much does an aircon chemical overhaul cost in Singapore?
An aircon chemical overhaul starts from S$280 per fan-coil unit. That compares with a standard chemical wash from S$90 and general servicing from S$50. The overhaul is the full-dismantle option: the blower wheel, motor and drain tray come out and are soaked and cleaned separately, and the drainage line is flushed. Unit count, model, condition and access affect the final written quote - send photos via WhatsApp for an exact figure before booking.
What FixMove does
FixMove (registered ALL-IN-ONE FIX & MOVE, UEN 53505530K) comes to you anywhere in Singapore — your HDB flat, condo, office or shop. There is no counter to visit. One number covers eight kinds of work: aircon, plumbing, electrical, handyman, installation, moving, renovation and full-house customisation. We are open 24 hours, Monday to Sunday, and where the work is regulated we arrange the appropriately licensed person.
Visit charges: A S$10 fuel surcharge applies to every visit. No additional standard call-out or inspection fee applies. Urgent service or a customer-requested appointment time adds one S$30 fee, subject to technician availability and confirmation. The S$30 is a separate service fee. Repair, diagnostic labour and materials are quoted separately; work starts only after customer approval.
A S$10 fuel surcharge applies to every visit. No additional standard call-out or inspection fee applies. Urgent service or a customer-requested appointment time adds one S$30 fee, subject to technician availability and confirmation. The S$30 is a separate service fee. Pricing terms.
About FixMove - FixMove coordinates chemical overhaul from S$280 per FCU and chemical wash from S$90 per FCU for HDB, condo and landed aircon units. The written quote states dismantle, cleaning, drain-line, condenser and refrigerant scope separately before work starts.
A chemical overhaul is the deepest clean an aircon fan-coil can get: full strip-down, parts soaked in cleaning solution, drainage flushed, then reassembled and tested. It exists for units a normal chemical wash can no longer rescue - mould through the blower assembly, cooling that stays weak after a wash, or years of skipped servicing. Below are the 2026 price benchmarks and a clear guide to when an overhaul is actually warranted, so you don't pay for one your unit doesn't need.
From S$280 per fan-coilSingapore-wide schedulingScope confirmed in writingQuote before any work
Availability is confirmed after your postal code, unit count, access and the current service queue are checked.
What is a chemical overhaul - and how is it different from a chemical wash?
A chemical wash treats the coil, blower and drain pan with a partial dismantle - parts are cleaned mostly in place. A chemical overhaul strips the fan-coil down completely: the blower wheel, fan motor and drain tray are removed and soaked separately in cleaning solution, the coil is chemically cleaned and rinsed, and the drainage line is flushed before reassembly and a cooling test. Where the outdoor condenser also needs attention, an outdoor-unit wash (from S$80) is scoped in the same written quote. An overhaul takes around 2 to 3 hours per unit versus 60 to 90 minutes for a wash - book it when a wash has already failed to fix the problem, not as a first resort.
Chemical overhaul prices in Singapore (2026)
Per fan-coil unit. These are indicative starting figures only - the exact quote is confirmed by WhatsApp after photos of your unit, or on-site before any work starts, so there are no surprises.
Indicative ranges. Refrigerant recovery or refill, leak repair and parts replacement are stated separately in the written scope and quoted only if needed. Any scope change requires written customer approval.
General servicing vs chemical wash vs chemical overhaul
The three services are layers, not competitors: regular servicing delays the need for a chemical wash, and a wash done at the right time usually prevents an overhaul.
| General servicing | Chemical wash | Chemical overhaul | |
|---|---|---|---|
| What's included | Surface clean in place: filters, cover, accessible coil surface and drain line | Partial dismantle; coil, blower and drain pan chemically treated and rinsed | Full strip-down; blower wheel, motor and drain tray removed and soaked; drainage line flushed; reassembled and tested |
| Indicative price | From S$50 | From S$90 per unit | From S$280 per unit |
| When it's needed | Routine upkeep on a unit that still cools well | Smell, weak airflow or drain-related leak that a general service cannot fix | Cooling still weak after a chemical wash, mould through the blower assembly, or years of skipped servicing |
| Downtime | About 30-45 min per unit | About 60-90 min per unit | About 2-3 hours per unit |
Full chemical wash pricing is on the aircon chemical wash cost page.
Signs your aircon needs a chemical overhaul, not just a wash
Cooling loss alone does not prove that deep cleaning is needed - refrigerant, drainage, electrical and component faults should be ruled out first. An overhaul is usually justified when inspection finds one or more of these:
Drainage is one of the faults an overhaul is meant to clear. When the drain pan and condensate line are stripped and flushed rather than surface-washed, water that was backing up out of the fan coil normally stops. If the leak is the reason you are on this page, price it first as aircon water leak repair and only step up to an overhaul if the inspection calls for it.
- The smell survives a chemical wash. A musty or sour odour that returns within days of a wash points to mould deep in the blower assembly that in-place treatment cannot reach.
- Cooling stays weak after a wash. If a chemical wash has already been done and airflow or cooling is still poor, the build-up is likely inside parts that only come clean when removed and soaked.
- Water keeps leaking despite drain flushing. Sludge in the drain tray re-blocks the line repeatedly; an overhaul removes and cleans the tray itself rather than just flushing the pipe.
- Visible mould through the blower wheel. Black spotting across the blower and coil fins usually means the contamination is past what a wash can clear.
- Years without servicing. A unit that has skipped routine servicing for two or more years often needs the full dismantle to come back to acceptable condition.
If the unit is simply not cold and has been serviced recently, start with diagnosis instead - see aircon not cold. Refrigerant loss is a separate issue with its own pricing on the gas top-up cost page.
Best details to send for an accurate chemical overhaul quote
These details help separate a wash, an overhaul and a repair before a technician is scheduled - and they get you an exact written figure instead of a phone estimate.
- Property type and Singapore postal code.
- Number of indoor fan-coil units and whether they share one outdoor system.
- Brand and model, if visible on the unit or remote.
- Current symptoms: persistent smell, weak cooling, repeated leaking, visible mould, noise.
- Whether a chemical wash has already been done, and when.
- Clear photos or a short video of the open unit if possible, preferred timing and any condo access rules.
FAQ
How much does an aircon chemical overhaul cost in Singapore?
The indicative starting price is S$280 per fan-coil unit. The written quote depends on unit count, brand or model, condition, access and whether refrigerant or repair work is also needed.
What is the difference between a chemical wash and a chemical overhaul?
A chemical wash treats the coil, blower and drain pan with a partial dismantle. A chemical overhaul strips the fan-coil down completely - the blower wheel, motor and drain tray are removed and soaked separately - and the drainage line is flushed. The overhaul is for units a normal wash can no longer rescue.
How long does an aircon chemical overhaul take?
Around 2 to 3 hours per fan-coil unit, compared with 60 to 90 minutes for a standard chemical wash. Actual time depends on access, unit condition and scope.
Do I need a chemical overhaul or is a chemical wash enough?
Try a chemical wash first unless cooling stays weak even after a wash, mould has spread through the blower assembly, or the unit has skipped servicing for years. The choice is symptom-led - send photos and symptoms via WhatsApp so the right scope is confirmed before booking.
Does a chemical overhaul include refrigerant top-up?
Refrigerant recovery, refill or leak repair is stated separately in the written scope and quoted only if needed. Cleaning alone does not fix a refrigerant leak.
✅ Licensing & Compliance - Aircon Service
Any workmanship cover is stated in the written quote. Refrigerant, repair and regulated electrical scope are quoted separately. See full licence list.