Post-renovation formaldehyde and VOC removal
Formaldehyde and VOC treatment in Singapore is S$300 to S$450 for a 3-room HDB and from S$328 to S$900 for a 4-room HDB photocatalyst treatment. A 5-room, executive or 3 to 4 bed condo with a before-and-after meter report is S$450 to S$680, and a landed home or office fit-out of 1,500 to 3,500 sqft is S$680 to S$1,100. A spot treatment of up to three new wardrobes or a nursery is S$180 to S$280. The reading is compared with SS 554:2016 + A1:2021, which limits formaldehyde to 0.08 ppm (0.1 mg/m³) over 8 hours.
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The smell is in the board, not in the air filter
E1 and E2 plywood and melamine glue keep off-gassing in a 30°C flat. A HEPA purifier catches particles. It does not stop the cabinet.
| What you see | Likely cause | What to do first / typical cost |
|---|---|---|
| New wardrobe smells when the door is shut | Urea-formaldehyde resin in the board and the edge tape | Spot treatment of up to three cabinets: S$180 to S$280 |
| Whole flat smells in the first fortnight | Peak off-gassing from carpentry, vinyl and paint | Full-flat photocatalyst and scavenger: S$300 to S$680 |
| A baby is due to sleep in the room | The SS 554 8-hour limit is 0.08 ppm | Treat, then compare the calibrated meter with 0.08 ppm before the cot moves in |
| The smell is still there after six months | The source is inside the carcass, not the curtains | A second pass on the raw edges: inside the same full-flat band |
2026 formaldehyde treatment bands
Estimate passes and the SGD band on the formaldehyde and VOC estimator. Why HEPA is not enough is the formaldehyde guide. Book the dust removal first on post-renovation cleaning so the spray lands on the board, not on a layer of silica.
| Job | 2026 SGD band | Inclusions |
|---|---|---|
| 3-room HDB full-flat formaldehyde and TVOC treatment | S$300 to S$450 | Dual-stage Japanese nano-TiO2 photocatalyst and amino-polymer scavenger on raw carpentry edges, drawer undersides, wardrobes and walls. |
| 4-room HDB photocatalyst formaldehyde treatment | S$328 to S$900 | Dual-stage Japanese nano-TiO2 photocatalyst and amino-polymer scavenger on raw carpentry edges, drawer undersides, wardrobes and walls. |
| 5-room, executive or 3 to 4 bed condo, with pre and post meter report | S$450 to S$680 | Full-unit neutralization plus a calibrated digital HCHO and TVOC reading before and after, compared with the SS 554 limit. |
| Landed home or commercial fit-out, 1,500 to 3,500 sqft | S$680 to S$1,100 | Industrial VOC and formaldehyde purge with an ozone or hydroxyl shock treatment after the photocatalyst pass. |
| New wardrobe, baby nursery or Taobao furniture spot treatment, up to 3 pieces | S$180 to S$280 | Spot treatment of up to three rooms or cabinet runs. The rest of the flat is not sprayed. |
The meter, the boards and the room
Frequently Asked Questions
What is the Singapore formaldehyde limit?
SS 554:2016 + A1:2021 sets an 8-hour formaldehyde limit of 0.08 ppm, which is 0.1 mg/m³. The visit compares a calibrated digital meter with that number.
How much does a full HDB treatment cost?
A 3-room flat is S$300 to S$450. A 4-room HDB photocatalyst treatment is from S$328 to S$900. A 5-room, executive or 3 to 4 bed condo with the meter report is S$450 to S$680. A spot treatment of up to three cabinets is S$180 to S$280.
Will an air purifier replace the treatment?
No. HEPA filtration does not stop urea-formaldehyde resin inside a closed wardrobe. The photocatalyst and the amino-polymer scavenger are applied to the raw edges, drawer undersides and boards.