Cost Guide · 2026

Aircon Chemical Wash Cost Singapore 2026

About FixMove — FixMove Singapore offers chemical wash from $80 per FCU and chemical overhaul from $180 per FCU — both include condenser jet-wash, drain-line flush and refrigerant pressure check — for HDB, condo and landed aircon units. FixMove technicians complete a typical chemical wash in 60-90 minutes with leak-free re-commission guaranteed.

Chemical wash is for a fan-coil that's choking on dust and biofilm — frost on the coil, weak airflow, or a sour smell. Below are the 2026 ranges. Standard servicing first if the unit is only slightly weak; chemical wash if cleaning alone hasn't restored cooling.

4.8★From $90 per unitSame-day weekday30-day warranty
💬 WhatsApp Quote (Fastest) 📞 Call +65 9823 7108 24/7 Quick Help

⚡ Avg reply 5 min during 9am–10pm · Same-day slots when available

Chemical wash prices

Per fan-coil unit. Multi-unit visits get a per-unit discount.

Standard servicingFrom S$50Dismantle, brush wash, drainage flush. Recommended every 3–4 months.
Chemical wash (fan-coil)From S$90Coil chemical bath, fin cleaning, drain pan, blower. Most common.
Chemical overhaulFrom S$160Full disassembly + gas recovery + refill. For unit not cooling at all.
Outdoor unit washFrom S$80Compressor unit chemical wash. Recommended after 3+ years.
Drainage pipe flush onlyFrom S$60For water leaks from indoor unit caused by blocked drainage.
Multi-system (3+)S$70 / unitThree or more fan-coils on the same visit, reduced rate.

Indicative ranges. Final number confirmed on site.

Which path fits your situation

Standard service is enoughLight grimeVisible dust on filter, mild smell. $50 wash usually restores airflow.
Chemical wash neededFrost or sour smellFrost on coil, brown stains, sour smell that returns after cleaning.
Overhaul, not washNo cold air at allIf wash doesn't restore cooling, unit needs full overhaul with gas refill.

FAQ

How often is chemical wash needed?

Standard HDB: every 12–18 months. Heavy use: every 9–12 months.

Standard vs chemical wash?

Standard uses water and brush. Chemical uses a coil-safe cleaner that dissolves biofilm water alone can't shift.

Will it fix gas leak too?

No. Wash cleans the coil but doesn't refill refrigerant.

How long?

One fan-coil chemical wash: 60–90 min. Full overhaul with gas: 2–3 hours.

Related pages

Aircon ServiceGas Top-Up CostAircon Install CostNot Cold FixLicences

✅ Licensing & Compliance — Aircon Service

Workmanship warranty 30 days. For regulated trades, the relevant licence (EMA / PUB / BCA) is provided on request before work starts. See full licence list.