Aircon Chemical Overhaul in Sembawang

Looking for aircon chemical overhaul in Sembawang? aircons.sg covers all of North with same-day service available, transparent pricing from from $150/unit (no GST charged), and a 9-point pre-check included with every service booking ($45 min for 1 unit).

An aircon chemical overhaul is the deepest cleaning service available. The indoor fan coil unit is fully dismantled — fan blower, drain tray, casing, electrical components — and each part is cleaned individually with specialised chemicals. This catches issues that even a chemical wash cannot reach: PCB corrosion, fan blade grime, hidden mould inside the casing, and accumulated debris in cavities.

Sembawang homes are typically HDB residential. Whether you're in a BTO, resale flat, executive condominium, or landed home, our technicians have experience with the unit configurations common in this area.

Aircon Chemical Overhaul

Number of Units	Price (incl. GST)	Per Unit
1 unit	$200	$200.00 / unit
2 units	$370	$185.00 / unit
3 units	$515	$171.67 / unit
4 units	$640	$160.00 / unit
5+ units	$150 per unit

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What's included

9-point pre-check (included with service booking, $45 min for 1 unit)
Full disassembly of indoor fan coil unit
Individual chemical cleaning of every component
Coil deep treatment with anti-bacterial solution
Fan blower wheel cleaned and balanced
PCB inspection and dust removal
Anti-rust coating on metal components
Drain tray and pipe pressure-cleaned
Full reassembly and 5-point performance test

Same-day service in Sembawang

We dispatch technicians to Sembawang daily. WhatsApp 9107 2601 with your address and issue, and we'll confirm the earliest available slot — typically same-day for weekday bookings, next-day for weekends.

Areas we cover near Sembawang: Yishun, Woodlands, Admiralty

Aircon service in Sembawang (postal sector 75)

As an established HDB area, Sembawang has plenty of flats whose aircon runs hard through the afternoon heat. Regular servicing plus a chemical wash every 6 to 12 months keeps cooling strong and electricity bills in check.

Whatever your aircon needs in Sembawang, our 9-point pre-check (included with any booking) means you only pay for the service that actually fixes the problem — no upselling, no GST, prices fixed before we start.

All aircon services in Sembawang

Aircon Servicing in Sembawang — from $25/unit
Aircon Chemical Wash in Sembawang — from $100/unit
Aircon Repair & Gas Top-Up in Sembawang — from $45 incl. pre-check
Aircon Installation in Sembawang — from $1,200

Frequently asked questions

Chemical wash vs chemical overhaul — which do I need?

Chemical wash cleans the coil without disassembly — good for routine deep cleaning every 6–12 months. Chemical overhaul fully dismantles the unit and cleans every component individually — recommended every 2–3 years, or sooner if your unit has serious fouling, persistent odour, or hasn't been overhauled in years.

How much does a full HDB aircon overhaul cost?

For a typical 3-bedroom HDB flat with 3 fan coil units, a full chemical overhaul costs $515 at aircons.sg (no GST charged). 4-bedroom flats with 4 units cost $640. Pricing covers complete disassembly, individual component cleaning, and 90-day warranty.

Will chemical overhaul make my aircon work like new?

For units under 8 years old in good mechanical condition, yes — overhaul can restore most of the original cooling performance. Older units or those with worn compressors will improve significantly but may not fully recover original specs.

How long does a chemical overhaul take?

About 2 to 3 hours per indoor unit, because each part is removed and cleaned individually. A full 3-unit HDB flat is usually a half to full day depending on access and unit condition.

Is a chemical overhaul worth it for an older aircon?

If the unit is under about 8 years old and mechanically sound, yes — it is the deepest clean available and far cheaper than replacement. If the pre-check shows a failing compressor or end-of-life unit, we will tell you honestly so you can weigh overhaul against a new installation.

Do you need to remove the unit from the wall?

No. We dismantle the indoor fan coil in place — covers, blower and drain tray come off for individual cleaning without taking the whole casing off the wall. Reassembly and testing are done on the spot.

My aircon still smells after a chemical wash — will an overhaul fix it?

Usually, yes. A persistent smell after a wash means mould or debris is sitting in the blower wheel, casing or deep in the drain tray — exactly the areas an overhaul strips down and cleans individually.