Best seller Chemical Wash
Fan-Coil Chemical Wash
Our core deep clean — the indoor fan coil is chemical-treated and flushed until it’s cold, quiet and odour-free again.
Starts from $55$70 / unit View & book
Singapore aircon chemical-wash specialist
Deep-cleaned aircon that runs cold & sparkling fresh
Purecool chemical-washes and overhauls tired fan coils until the air is properly cold and the musty smell is gone for good. Per-unit prices up front, deep cleans you can feel — book a wash over WhatsApp in minutes.
Per-unit prices, no surprises 60-day freshness promise Chemical wash is all we do
Trusted across the island
A chemical-wash specialist Singapore homes come back to
We don’t dabble in everything. Deep-cleaning fan coils and overhauling tired units is the whole job — which is why our crews are quick, thorough, and know exactly what a clean coil should look like.
31,000+
units chemical-washed since 2016
4.9★
from 2,100+ Google reviews
60 min
typical WhatsApp reply
60 days
freshness promise
Every kind of deep clean, one specialist crew
From a routine refresh to a full strip-down overhaul, indoor coil to outdoor condenser — all handled by the same trained Purecool wash crews.
Fan-Coil Chemical Wash
The indoor unit chemical-treated and flushed until the coil runs cold, quiet and odour-free again — our core job.
Condenser & Ledge
The outdoor condenser washed so the whole system runs cooler and cheaper, plus a clean-down of the ledge it stands on.
Full Overhaul
The deepest restore — every part dismantled and individually deep-cleaned to rescue a long-neglected unit.
Wash Contracts
Scheduled deep cleans across the year so you never chase a date — and pay less per wash for it.
The aircon problems a chemical wash fixes
If your unit is doing any of these, it’s telling you the coil is overdue for a proper deep clean.
Not cooling like before
A grime-caked coil insulates the cold away — the room never quite cools down.
Weak, slow airflow
A clogged blower wheel chokes the airflow, so the unit runs for hours doing little.
Musty, damp smell
Mould and bacteria deep in the coil and tray push that damp smell into the room.
Dripping & leaking
A blocked drainage tray backs up and drips down the wall instead of draining away.
Rising power bills
A choked condenser makes the system labour and quietly pushes your electricity up.
Rattles & loud running
Built-up dirt unbalances the blower, and the unit starts to rattle and groan.
Allergies & sneezing
A mouldy coil blows spores into the room all night — rough on allergies and asthma.
Tripping on hot days
An overheating, dust-blocked condenser cuts out just when you need it most.
Our most-booked washes
The deep cleans Singapore homes ask us for week in, week out — each with an honest from-price and a trained crew on the job.
Best seller 
Pairs well Chemical Wash
Condenser Chemical Wash
A chemical clean of the outdoor condenser so the whole system runs cooler, quieter and cheaper to power.
Starts from $65$80 / unit View & book
Heaviest clean Overhaul
Aircon Chemical Overhaul
Our deepest restore — the unit is fully dismantled, every part individually deep-cleaned, then rebuilt and tested.
Starts from $105$130 / unit View & book
Routine Maintenance
General Aircon Servicing
A lighter routine clean for healthy units — filters, blower and drainage kept fresh between deep cleans.
Starts from $35$45 / unit View & book
Price your wash in seconds
Pick your units, the unit type and the wash level — the Chemical Wash Estimator shows an indicative price and the right package, then books it straight over WhatsApp.
1 · Wash level tap one
2 · Unit type
3 · How many units?
4 · One-off or on a contract? optional
Indicative price
~$
. A guide from our standard per-unit rates — your exact price is confirmed over WhatsApp and again on site before any wash begins.
Recommended package See wash packages
This estimate is an honest starting point, not a fixed quote. Final pricing depends on unit access, condition and how heavily soiled each unit is; overhauls and contracts are confirmed after the crew sees the units. Purecool is a fictional demo brand built by SGBP.
From “it smells musty” to sparkling cold
No clipboard quotes, no callout-then-upsell. Four simple steps, all starting with a quick message.
Tell us your units
WhatsApp us — how many units, what type (wall, cassette, ducted) and how they’re behaving. A photo or quick video helps us read the condition.
See an indicative price
Use the Chemical Wash Estimator on this site, or we’ll send a clear range over chat — no callout-then-upsell surprises.
Book a wash slot
Choose a time that works for you — usually within the week. The crew shows up with sheets, drop cloths and every bit of kit to keep it tidy.
Deep-cleaned & tested
We chemical-wash, flush the drainage, sanitise and re-test the cooling in front of you. Pay only once it’s blowing cold and fresh.
Wash packages for every home
From a single rescue wash to scheduled deep cleans on autopilot. Every package is a simple reservation — no cart, no lock-in.
One-off
Single Deep Wash
One fan-coil chemical wash on a single unit — perfect to try us, or to rescue one tired room.
$55 / unit
- Full fan-coil chemical wash
- Drainage flushed clear
- Cooling re-tested cold
- No contract, no obligation
Most popular Yearly
Whole-Home Refresh
Chemical-wash every unit in the home in one visit — the once-a-year reset most flats need.
$49 / unit
- Every fan coil chemical-washed
- Condenser wash on the system
- Anti-mould sanitising included
- Discounted per-unit rate
2 visits / yr
Twice-a-Year Care
Two scheduled deep cleans a year — the rhythm that keeps cooling strong and bills down.
$199 / unit / yr
- 2 chemical washes a year
- Priority booking
- 8% off overhauls & add-ons
- Kept service history
4 visits / yr
Quarterly Care
Four cleans a year for hard-working households, grubby units, or rooms with the aircon on round the clock.
$359 / unit / yr
- 4 chemical washes a year
- Priority booking
- 15% off overhauls & add-ons
- Free anti-mould each visit
Per-unit pricing, no surprises
The price per unit is on the table before a tool comes out — fully itemised, with no turn-up-then-upsell routine and nothing slipped onto the invoice after the fact.
60-day freshness promise
Should a unit we deep-cleaned turn musty or lose its bite inside 60 days, the crew returns and re-washes it — no debate, no second charge.
Proper chemicals, done clean
Coil-safe solutions, full drop sheets and a methodical pack-down mean your room is handed back exactly as it was, only without the grime.
What Singapore homes say after a wash
4.9★★★★★
from 2,100+ Google reviews
from 2,100+ Google reviews
Serene Koh
★★★★★
Three of our units were barely cooling and the master bedroom one smelled damp every night. The Purecool crew chemical-washed all of them plus the condenser in one morning, laid sheets everywhere and left the place spotless. The smell is completely gone and the air is properly cold again. Booked a twice-a-year contract on the spot.
Daniel Raj
★★★★★
My living-room cassette unit was so neglected I thought I’d need a new one. Suresh stripped the whole thing down, showed me the black gunk that came out of the tray, and rebuilt it. It blows like new now. Cost a fair bit but a fraction of replacing it. Honest and seriously thorough.
Mei Xin Tan
★★★★★
With two kids at home the aircon runs non-stop, so the units grime up quickly. On the quarterly contract Purecool just appears every three months and it’s off my mind entirely. Same crew, sanitising treatment every visit, and not a hint of that damp smell anymore. Completely fuss-free.
Faizal Osman
★★★★★
Dropped them a late-evening WhatsApp, ran the estimator for a figure, and a crew turned up two days on. Two weak, sluggish wall units now blow cold and run quiet, and they made me stand under the vent to check before I paid a cent. The figure I was quoted is the figure I paid. They have me yearly now.
Chemical wash — your questions
Think of them as three depths. A general wash is the surface-level upkeep — filters, blower and drainage tidied — for a unit that already runs cold. A chemical wash, our main job, drives a coil-safe foam through the fin pack and blower to bring back a unit that’s gone weak, sluggish or smelly, typically once a year. An overhaul is the deepest: the unit comes off the wall and every component is bathed separately to salvage one that’s been neglected for years. Once the casing is open, the crew will advise you frankly on which depth yours genuinely warrants.
A useful rhythm for most flats here is one chemical wash per indoor unit each year, with a quick general tidy roughly every three months between them. Where a room runs the aircon dawn to midnight, sits in a dusty corridor, or houses someone with allergies, stepping up to two or four deep cleans a year pays off. Our wash contracts simply lock that cadence in for you, so a missed date never becomes a black, mouldy coil.
If you want the full benefit, it is. The common mistake is to scrub the indoor unit and ignore the box outside — but a dust-clogged condenser forces the compressor to strain, runs the system hot, and pulls extra power, quietly cancelling out a fresh indoor coil. Cleaning one end and not the other is half a job, which is why we tend to pair them. Do both and you feel it twice: in the cooling, and on the electricity bill.
In most cases, yes. That sour, damp odour comes from mould and bacteria colonising the coil and the drip tray, and a chemical wash flushes the bulk of it while clearing the standing water that keeps it alive. Where a faint whiff lingers — or for households with allergy sufferers or little ones — we lay down an anti-mould sanitising treatment that hits the colony at its root and keeps it from creeping back. That pairing is usually what beats a smell earlier cleans couldn’t shift.
Quickest route is the Chemical Wash Estimator on this site: choose how many units, the unit type and the wash depth, and it returns an indicative figure on the spot. Prefer to message? Send us those same details on WhatsApp — a photo of the unit helps a lot — and we’ll reply with a range, usually within an hour while the crews are out (8.30am–8pm daily). Most washes land a slot within the same week, and we’ll squeeze in genuine emergencies ahead of a public holiday where we can.
Yes on both counts. We bill by the unit and by the unit type — wall-mounted, cassette or ducted — and you see that figure before a crew lifts a tool. The Estimator or a WhatsApp reply gives you the range, and the per-unit number is locked in on site before any foam goes near a coil. Nothing extra appears on the invoice without your nod, there’s no turn-up-then-upsell routine, and optional extras such as a condenser wash or sanitising are priced openly so you choose.
Cold, fresh air is a message away
Book your chemical wash today
Tell us your units over WhatsApp — a photo helps. We’ll send a clear per-unit price and a slot, often the same week. Pay only once it’s blowing cold and fresh.
Fast booking
WhatsApp replies within the hour, washes often booked the same week.
60-day promise
If a deep-cleaned unit turns musty or weak within 60 days, we re-wash it free.
Island-wide
Two bases, central and west, covering the whole island 8.30am–8pm daily.