Aircon Servicing in Teck Ghee, Cheng San, Chong Boon and Kebun Bahru for Older HDB Flats
Water leak repairs, chemical overhauls and servicing from S$50 for the older HDB blocks along Ang Mo Kio Avenue 3 and Avenue 10. You get a fixed quote before any work, and there is no callout fee.
- Usual arrival within 90 minutes
- Fixed quote, no callout fee
- 90-day workmanship warranty
Usual arrival
Within 90 min
via the CTE, subject to availability
4.0/5 66 Google reviews (Cool Earth Aircon)
Same-day slots usual arrival within 90 min, subject to availability
4,560+ units serviced since 2007
90-day workmanship warranty
Aircon Leaks and Weak Cooling in Teck Ghee and Cheng San Flats
Leaks that keep coming back in late-1970s Teck Ghee and Chong Boon flats
What you notice: Water drips onto the wall or the bed a few weeks after servicing, often with a sour smell from the same unit.
Why it happens here: Many blocks here date from 1978 to the early 1980s, and HDB rules send condensate through internal piping to a floor trap. Long runs of old drain line collect sludge, and tired pipe insulation sweats.
What we do: Water leak repair clears the drain line, re-levels the drain pan and replaces worn insulation. When sludge has reached the blower wheel, a chemical overhaul stops it from coming back.
Servicing, Overhauls and Leak Repairs for Older Units
Most blocks in Teck Ghee, Cheng San, Chong Boon and Kebun Bahru went up in the late 1970s and 1980s, so many flats still run older aircon units on old piping. We service them, deep clean them when servicing is no longer enough, and fix the leaks that old drain lines cause, from Ang Mo Kio Avenue 3 to the blocks around Chong Boon Market.
Aircon Water Leak Repair
Clears choked drain lines and fixes drain pan and pipe faults that cause the indoor unit to drip.
Aircon Chemical Overhaul
The indoor unit is taken apart and every part cleaned and checked for wear. For heavy mould, strong smells or units with no service for over a year.
Deep clean on the wall Aircon Chemical Wash
On-the-wall deep clean of the evaporator coil, blower wheel and drain parts for units that still cool poorly or smell after normal servicing.
The Jobs We Do Most Often Here
Water leak repair. A choked drain line, a tilted or cracked drain pan, or worn insulation on old piping are the usual causes. Water leak repair starts from S$60, and the drainage is tested before we leave.
Chemical overhaul. For a strong sour smell, black specks blowing out, or a unit that stays weak after servicing, a chemical overhaul takes the indoor unit apart and cleans every part. It is S$130 to S$180 per unit, depending on the unit type and how dirty it is.
Regular servicing. For units that still cool well, general servicing every 3 to 4 months keeps them that way. It is S$50 for 1 unit, S$55 for 2, S$70 for 3 and S$85 for 4, with the full 8-point checklist on each unit.
Chemical wash. If cooling is a bit weak or there is a mild musty smell, a chemical wash from S$80 per unit cleans the coil, blower wheel and drain parts with the unit still on the wall.
Not sure which one you need? Send a photo and a short description on WhatsApp. We will tell you what it looks like and quote before anything starts. The full list is on the price list.
How a Booking Works, From Message to Tested Unit
Five steps, and the price is agreed at step two.
- 1
Message us
WhatsApp or call with the number of units, the problem and your Ang Mo Kio address.
- 2
Get a fixed quote
We send a fixed quote and you pick a time slot that suits you.
- 3
Technician checks first
The technician arrives, checks the units and confirms the work before starting.
- 4
Job done and tested
The work is done, the area is cleaned up, and each unit is tested.
- 5
Pay after the job
You pay once you're happy, and your 90-day workmanship warranty starts.
Leak or Weak Cooling? Send Us a Photo First
Fixed quote before any work, no callout fee, and a 90-day workmanship warranty. If the same fault comes back, we return and fix it at no extra charge.
Why Teck Ghee and Cheng San Households Book Us
- We know older HDB units: drain pan sludge, old copper piping and tired blower wheels are our everyday jobs
- Fixed quote before any work starts, with no callout fee
- Technicians come via the CTE and usually arrive within 90 minutes of a confirmed booking
- 90-day workmanship warranty: if the same leak or fault comes back, we return and fix it at no extra charge
- Part of Cool Earth Aircon, servicing aircon in Singapore since 2007
What Teck Ghee & Cheng San customers say
Cool Earth Aircon holds a 4.0 Google rating from 66 reviews.
"Three units in our Teck Ghee flat, done in one evening after work. The price on WhatsApp was the price I paid."
"The bedroom unit smelled sour for months. After the overhaul the smell is gone and it cools properly again. He showed me the sludge in the drain pan."
"Water was dripping onto the bed. They came the same afternoon, cleared the drain line and tested it before leaving."
Aircon Servicing Know-How for Older Chong Boon and Kebun Bahru Blocks
Teck Ghee, Cheng San, Chong Boon and Kebun Bahru are some of the older neighbourhoods in Ang Mo Kio. HDB started the town in 1973, and blocks such as Teck Ghee Evergreen (1978) and Teck Ghee View (1981) are now more than 40 years old. That age shows in the aircon: older non-inverter units, original drain lines and pipe insulation that has broken down.
Singapore's long-term annual mean temperature is 27.8°C, so most units in these flats run every night of the year. HDB rules send condensate through internal piping to a floor trap, and on an old, long drain run that steady use turns a little slime into a leak that keeps coming back. We check the whole drain run, not just the filter, so the fix holds.
Our technicians come off the CTE onto Ang Mo Kio Avenue 3 and Avenue 10 most days, so a block near Chong Boon Market or Mayflower MRT is a routine trip. Give us your block number when you book and we will quote an arrival time you can plan around.
Older HDB Blocks, Older Units, Old Piping
Many flats in these estates have been renovated, but the aircon in a lot of them is an older non-inverter unit, and the copper piping and drain lines often date back to an earlier installation.
That shapes the work we see here:
- Drain pan sludge. Years of humid air and dust build up a jelly-like sludge in the drain pan and drain line. When it gets thick enough, water backs up and drips onto the wall or bed.
- Old copper piping and worn insulation. Pipe insulation breaks down over time. Bare pipes sweat, and the drips run along the trunking into the flat.
- Cooling that servicing cannot bring back. On older blocks along Avenue 3 and Avenue 10, a unit that has gone a long time without a deep clean often needs a chemical overhaul. Normal servicing cleans the filter and the front of the coil, but it cannot reach mould packed into the blower wheel.
Common areas such as corridors and the outside of the block are looked after by Ang Mo Kio Town Council. Our work stays inside your flat and on your aircon ledge, so there is nothing you need to arrange with the town council for a normal service or repair.
Getting to Teck Ghee, Cheng San, Chong Boon and Kebun Bahru
Our office is in Simei, not Ang Mo Kio. Technicians drive over on the Central Expressway (CTE) and usually reach these estates within 90 minutes of a confirmed booking. A morning message gives you the best chance of a slot on the same day.
Once off the CTE, most jobs here are a short drive along Ang Mo Kio Avenue 3 or Ang Mo Kio Avenue 10. Blocks in Kebun Bahru are close to Mayflower MRT, so if you are booking for a parent or a tenant, giving the block number and the nearest MRT helps us plan the route and quote a realistic arrival time.
To book, send a WhatsApp with three things:
- The number of units and what each one is doing (not cold, leaking, smelly, noisy)
- Your block and street, for example a block on Avenue 3 or Avenue 10
- The day and time that suits you
We reply with a fixed quote and a time slot. Evening slots run to 9 PM Monday to Saturday and to 8 PM on Sunday, which suits working households that cannot take a day off.
Map shows the area we serve. Our office is in Simei, and technicians come to you.
Teck Ghee and Cheng San Aircon Servicing Questions
How fast can you get to Teck Ghee, Cheng San, Chong Boon or Kebun Bahru?
Technicians drive from our Simei office by the CTE, turn onto Ang Mo Kio Avenue 3 or Avenue 10, and usually arrive within 90 minutes of a confirmed booking. A morning booking gives you the best chance of a slot on the same day.
Do you cover the blocks along Ang Mo Kio Avenue 3 and Avenue 10?
Yes. We cover every block in Teck Ghee, Cheng San, Chong Boon and Kebun Bahru, including the older ones along Ang Mo Kio Avenue 3 and Avenue 10 and the blocks around Chong Boon Market and Mayflower MRT.
How much is aircon servicing for a 3-room or 4-room flat here?
Most flats in these estates have 2 to 4 units. General servicing is S$55 for 2 units, S$70 for 3 and S$85 for 4. The price is agreed in writing before the technician starts, and coming out to your block costs nothing extra.
My aircon is old. Is servicing enough, or do I need an overhaul?
If the unit still cools and only needs a clean, servicing from S$50 is enough. If it smells sour, blows black specks or stays weak after servicing, a chemical overhaul at S$130 to S$180 per unit is usually the fix. The technician checks first and tells you before any work.
Why does my aircon keep leaking water in an older HDB flat?
HDB requires condensate to run through internal piping to a floor trap, and in blocks from the late 1970s and 1980s that drain run is often old, long and lined with sludge. Worn insulation on old copper piping also sweats. Leak repair starts from S$60, and if sludge keeps returning, an overhaul is usually the lasting fix.
Do I need to inform Ang Mo Kio Town Council before you come?
No. Servicing and repairs happen inside your flat and on your own aircon ledge, so there is nothing to arrange with the town council. Replacing a condensing unit is different: HDB only allows a BCA-trained installer to do it, and we refer that work to Cool Earth Aircon.
Helpful guides
Signs Your Aircon Needs Servicing
Weak airflow, dusty filters, slow cooling or a light musty smell? The signs your aircon is due for servicing, and when it needs more than that.
Read guide
What Happens During General Aircon Servicing: The 8-Point Checklist
Filter clean, coil clean, drain flush, pressure check and more. See exactly what general aircon servicing covers so you can compare quotes.
Read guideNearby areas we serve
Our water leak repair and chemical overhaul services cover every street in Teck Ghee & Cheng San, and the same team works in the estates next door.
Book Aircon Servicing in Teck Ghee, Cheng San, Chong Boon or Kebun Bahru
Same-day slots on most days, subject to availability. Usual arrival within 90 minutes of a confirmed booking, by the CTE and Ang Mo Kio Avenue 3.