Centralised cooling system (CCS) chilled-water pipe runs in ceilings
📍 West Singapore · Jurong GRC
Mould Removal in Tengah
Quick Answer
Tengah is Singapore's newest 'forest town' and a new mould frontier: centralised cooling (CCS) chilled-water pipes cause ceiling condensation, north-facing forest-edge units sit above 80% RH, and BTO shelters are sealed and used for storage. CCS ceiling treatment starts at S$199 per surface, forest-edge wall mould from S$480 and shelter treatment from S$360. Brand-new flats are affected as often as old ones here.
Singapore's newest 'forest town' — and the new aircon-mould frontier.
See mould in your Tengah home?
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Why Tengah sees this kind of mould
Tengah is Singapore's newest BTO town and the first to use a centralised cooling system (CCS) instead of conventional split aircon. CCS chilled-water pipes and concealed trunking run through ceilings — when insulation isn't perfect, condensation forms on the cold pipe surface and drives ceiling mould within the first year. Combined with Tengah's forest-edge microclimate (Jurong Forest patch, high ambient RH), we expect this estate to be a major mould hotspot for the next 5–10 years.
Common Tengah mould hotspots
The recurring patterns we see across this estate.
Living and master-bedroom ceilings near CCS fan-coil units
Forest-facing units with persistent RH > 80%
Bomb shelter / household shelter walls (sealed, unventilated)
Wardrobe back-panels against north-facing external walls
Service yard ceilings (rain ingress + monsoon spray)
Why Tengah owners call Pico X Health
- First Singapore town with centralised cooling — new mould failure mode.
- Forest-edge microclimate keeps humidity elevated year-round.
- Young BTO owners reporting aircon-related ceiling stains within 12 months.
Estates we cover in Tengah
Plantation DistrictPark DistrictGarden DistrictBricklandForest Hill
Helpful guides for Tengah
Other areas we cover
Tengah live Area Health Index
A zone-level read of the conditions that drive mould in Tengah, recalculated from public Singapore environment data (data.gov.sg / NEA) plus our own field record. It answers how hard this estate is on a building, not how any one home is doing.
Composite area score: 63/100 — Fair · West reporting zone
Updated 14 Sep 2026, 01:41 AM SGT · refreshes every 3 days · source: data.gov.sg / NEA
Live layer (60%)
Moisture & mould risk 50/100
RH mean 77%
Outdoor air quality 36/100
PSI 84 · PM2.5 81
Thermal / condensation risk 84/100
29.6°C mean
Structural layer (40%)
Housing age & waterproofing 95/100
Exposure (coastal / waterway / forest) 60/100
Density & shading 72/100
Field record (cases per 1,000 dwellings) 95/100
Our Tengah case record
0.06cases per 1,000 HDB dwellings
0.1%of our mould jobs
1distinct premises treated
0.0%repeat at same address
Period: 20 Jun 2024 - 13 Sep 2026. Case share is our own job mix, not a national prevalence figure. Dwellings are official HDB counts from HDB Property Information.
Mould-risk score through the year
Seasonal baseline mould-risk index for Tengah — a modelled estate profile; live daily points will replace individual months as they accumulate.
- Jan74
- Feb68
- Mar64
- Apr70
- May66
- Jun60
- Jul58
- Aug60
- Sep64
- Oct72
- Nov82
- Dec88
How this is calculated: live layer 60% — moisture & mould risk 30, outdoor air 20, thermal 10, from NEA humidity, temperature, rainfall, PSI and PM2.5 by reporting zone. Structural layer 40% — housing age and waterproofing 15, exposure 10, density and shading 8, our field record 7. Same 0–100 scale and bands (Excellent 85+, Good 70+, Fair 55+, Poor 40+, Critical under 40) as the Home Wellness Index. UV and noise are national context only and never scored.
What it is not: a measurement of any individual home. For an address-level score, use the Aira Hales Home Wellness Index.