To choose a mould removal company in Singapore, check four things: that they are NEA Vector Operator licensed, that they treat mould at the source rather than painting over it, that they offer a written warranty, and that they have recent, detailed reviews. A very cheap quote usually means surface-only work that returns within weeks. Four Solutions is NEA Vector Operator licensed (Reg. NEA201812722M) and treats mould at the source, not just the surface.
Mould is one of the most common home problems in Singapore, and there are a lot of companies offering to remove it. The trouble is that the results vary a lot, and the cheapest quote often costs the most in the end because the mould comes straight back. This is a neutral guide to choosing a mould removal company in Singapore: what to check, the red flags, fair price ranges, and the questions to ask before you book anyone.
1. Check they are NEA Vector Operator licensed
This is the first filter. A licensed operator is registered with the National Environment Agency and works to a required standard. Ask for the licence and the registration number, and you can verify it. Anyone who cannot give you a licence number is a company to be cautious with, regardless of how good the quote looks.
2. Ask whether they treat at the source or just paint over it
This is the single biggest difference between a lasting job and a waste of money. Mould is fed by moisture. If a company only cleans the surface and paints over it, the moisture is still there and the mould returns within weeks, usually worse. A proper provider inspects for the cause, whether that is aircon condensation, a leak, seepage or humidity, treats the mould at the source, and only then protects the surface. If a quote is just “clean and repaint,” ask what happens to the moisture.
3. Understand the warranty
A company that stands behind its work will offer a warranty on eligible jobs. Ask what is covered, for how long, and what voids it. A warranty is only meaningful if the treatment addressed the cause, so this ties back to point 2. Be wary of anyone promising “permanent” removal with no source treatment and no warranty in writing.
4. Look at reviews properly
Volume, recency and detail matter more than a single star rating. A company with a steady stream of recent reviews that mention the actual problem (ceiling mould, wardrobe mould, aircon mould) is more reliable than one with a handful of old, generic ones. Read the middle reviews, not just the five-star ones, to see how they handle issues.
5. Do they inspect and explain, or just quote a spray?
A good provider assesses the affected area, looks for the moisture source, and explains what they found and why. This matters because the right treatment depends on the cause. Some use tools like moisture meters, thermal imaging or UV checks to find hidden damp. A company that quotes a flat price sight-unseen without understanding the cause is guessing.
6. What is a fair price in Singapore?
Most residential mould jobs range from around $250 for a small, single area to $2,500 or more for larger or severe cases, depending on the area, the severity and whether anti-mould coating or odour treatment is needed. Anti-mould painting and warranty options add to that. A quote far below the range often means surface-only work that will not last, so treat a very cheap price as a question, not a bargain.
Red flags to walk away from
- No NEA licence number, or reluctance to provide it.
- “Clean and paint over” with no mention of the moisture cause.
- “Guaranteed permanent” with no source treatment and nothing in writing.
- No inspection, a flat price with no assessment.
- No warranty, or a warranty only given verbally.
- Pressure to pay full amount in cash upfront.
Questions to ask before you book
- Are you NEA Vector Operator licensed, and what is your registration number?
- Do you treat the mould at the source, or clean and repaint the surface?
- How do you find the moisture cause?
- What warranty do you offer, and what voids it?
- What is included in the quote, and what would add to it?
- Can you show recent reviews or before-and-after photos of similar jobs?
Run any company through these and you will quickly see who treats mould properly and who just paints over it. If you would like an NEA Vector Operator licensed assessment that identifies the moisture source before any work, Four Solutions is one option, and you can send a photo on WhatsApp for a quick view. Whoever you choose, use the checklist above.
FAQs
How do I know if a mould removal company is legitimate in Singapore?
Start with the NEA Vector Operator licence and registration number, which you can verify. Then check that they treat mould at the source rather than painting over it, offer a written warranty, and have recent, detailed reviews. A company that inspects and explains the moisture cause is more reliable than one quoting a flat price sight-unseen.
Why is the cheapest mould removal quote often not the best?
Because a very low price usually means surface-only cleaning and repainting, which does not remove the moisture feeding the mould. It returns within weeks, so you pay twice. Treat an unusually cheap quote as a sign to ask what happens to the moisture cause.
What should mould removal cost in Singapore?
Most residential jobs range from around $250 for a small area to $2,500 or more for larger or severe cases, depending on the size, severity and whether anti-mould coating or odour treatment is included. A quote far below that range often reflects surface-only work.
What is the most important question to ask?
Ask whether they treat the mould at the source or just clean and repaint the surface. Mould is fed by moisture, so if the cause is not addressed it comes back. That single question separates a lasting job from a temporary cover-up.