Exhaust Fan Guide
HDB Toilet Ventilation Fan Replacement Cost Singapore
Getting quoted S$800 for a standard HDB toilet fan swap? That's inflated. Here's what each level of HDB fan work actually costs.
Quick Answer
A like-for-like HDB toilet fan replacement in Singapore costs from S$380 installed, including removal, sealing and testing. Adding a humidistat or timer runs about S$80–150 more, new or re-routed ducting S$120–250, and a silent inline unit S$600–900 installed. Quotes near S$800 for a plain like-for-like swap are inflated. Get the CFM right first — the correct fan at S$380 prevents mould treatment costing several times that.
Like-for-like KDK 20WHCT replacement — from S$380
Same size, same cut-out. Fan + install + electrical + 1-year warranty. 70% of HDB jobs.
Upgrade to KDK 24CDHR (larger master bath) — from S$450
135 m³/h vs 93 m³/h. Ceiling opened by 40mm.
Add wall humidistat — S$60–100
Runs fan until RH drops below 65%. Single most impactful upgrade.
Duct cleaning or re-run — S$150–350
Cleaning S$150–200; full re-run S$250–350.
Silent inline fan install — from S$650
Motor inside ceiling void. ~27 dB. Master-bedroom en-suite pick.
Fan + bathroom ceiling treatment — from S$579
Fan from S$380 bundled with Toilet Refresh S$199, or Toilet Protection Pro S$400 (S$780 all in).
What isn't included
Ceiling patching (S$80–150); new wiring circuit (S$120–200); removing failed inline (S$150–250).
Ready to fix your fan?
Limited-time promo — Essential first full ceiling or wall surface is $199 (normally $299). Full mould removal + Gush MouldSeal sealer + Gush Core anti-mould paint, 6-month warranty.More Exhaust Fan Guides
Frequently Asked Questions
- What's the cheapest legit HDB fan replacement?
- S$380 all-in for like-for-like KDK 20WHCT. Below S$300 means grey-market fan or no warranty.
- Does HDB pay for a broken toilet fan?
- Only if structural (leak damaging fan). Otherwise homeowner cost.
- How long does the whole install take?
- 45–60 min like-for-like. 90–120 min with humidistat.
- Do I need to be home during install?
- Yes — access to bathroom and consumer unit.
- Is the install warrantied?
- 1-year workmanship + KDK factory (1 year full, up to 5 years motor).
Our Team in Action
Trained Pico X Health technicians follow strict containment, PPE, and protocols on every job in Singapore.
Before & After: Real Singapore Jobs
Documented mould remediation across HDB, condo, landed and commercial spaces.
Products We Use & Recommend
Professional-grade equipment and coatings selected for Singapore's humid climate.
Shield23 Pro — Antimicrobial Coating
Long-life inorganic-ion defense applied by trained Pico X Health technicians across hospitals, F&B, schools, and homes.
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