Waterproofing Singapore — Questions & Answers

Waterproofing in Singapore typically costs custom quote. The final quote depends on the affected area size, number of surfaces, whether hidden moisture is found, and whether you choose Essential or Signature Care. We provide an itemised quote after a free photo assessment or on-site inspection, with no hidden trip or transport fees for most jobs.

Most bathroom, balcony and external wall waterproofing jobs are completed in 3 to 6 hours on site. Small spot treatments may take 1 to 2 hours, while larger multi-surface or whole-unit projects can take a full day. Drying and curing of coatings add 24 to 48 hours before the space is fully back in normal use.

We offer warranty coverage of 5 to 10 years. Spot treatments carry a 90-day warranty, Essential tier covers 6 months, and Signature Care includes up to 24 months on treated surfaces. Warranty terms require that the underlying moisture source has been resolved; recurring leaks or unresolved condensation may void coverage.

Yes. Our bathroom, balcony and external wall waterproofing uses 100% non-toxic, VOC-free products that are safe for babies, pets, pregnant women and elderly residents. There is no bleach, no harsh biocide fogging and no lingering chemical smell. You can re-enter treated rooms the same day once surfaces are dry.

No, you usually do not need to move out. For most residential jobs we treat one room at a time and use low-odour, non-toxic products, so occupants can stay in other rooms. We may ask you to vacate the immediate work zone for 2 to 4 hours while coatings dry. Only large commercial or severe contamination jobs need temporary relocation.

For most internal bathroom, balcony and external wall waterproofing work inside your own unit, no HDB or MCST approval is needed. If the work involves common property, external walls, aircon ledges, plumbing risers or waterproofing in bathrooms that may affect the unit below, we coordinate the required forms and method statements with your MCST or HDB branch. We handle the paperwork as part of the project.

Mould returns because the moisture source was not fixed. In Singapore the usual causes are condensation on cold surfaces, poor ventilation, aircon drip or leakage, failed waterproofing, or humidity above 70% RH. Our bathroom, balcony and external wall waterproofing includes moisture mapping and source-fix steps so the mould does not regrow after treatment.

Yes, when done properly. Black mould on bathrooms, balconies and external walls is removed using HEPA-contained methods and treated with antimicrobial products. The key is identifying why the black mould grew there in the first place. If the damp source remains, any colour of mould will return. We fix the source as part of the scope.

If the mould covers more than one square metre, keeps returning, is near a moisture source, or anyone in the home has allergies or asthma, you need professional bathroom, balcony and external wall waterproofing. DIY cleaning removes surface colour but often spreads spores and leaves the root cause untouched. We assess the extent before recommending the right scope.

A musty smell usually means hidden mould or bacterial growth in damp, dark places: behind furniture, inside wardrobes, under carpets, in aircon units, or inside wall voids. Spores and microbial volatile organic compounds (MVOCs) travel through the air. Our inspection uses moisture meters and thermal imaging to locate hidden growth without destructive probing.

No. Painting over mould traps moisture and spores under the new paint, which peels and blisters within months while the mould continues to grow. Proper bathroom, balcony and external wall waterproofing removes the mould first, treats the substrate, fixes the moisture source, and only then applies a mould-resistant paint or coating.

In Singapore's humid climate, mould can begin growing within 24 to 48 hours after a surface stays damp and can colonise visible patches within a week. In HDB bathrooms and condo balconies, poor ventilation accelerates this. Early treatment limits both the area and the cost.

Bleach whitens surface mould but does not kill the roots inside porous materials, and it adds water to the surface which can feed regrowth. Our bathroom, balcony and external wall waterproofing uses non-toxic antimicrobials that penetrate the substrate, HEPA containment to stop spore spread, and source-fix steps so the mould stays gone.

Fogging and ozone treat the air and reachable surfaces but do not remove mould from inside materials or fix the moisture source. They can also leave residues and require temporary evacuation. Our bathroom, balcony and external wall waterproofing physically removes contaminated material, treats the substrate, and resolves the cause with source-fix approach before repainting.

Essential covers professional mould removal, anti-mould paint and protective sealer with a 6-month warranty. Signature Care adds source-fix approach before repainting, deeper penetration treatment and up to 24 months warranty. We recommend Essential for first-time, surface-level problems and Signature Care for recurring or high-humidity situations.

A general cleaner can wipe visible mould but is not equipped to identify moisture sources, contain spores, or apply antimicrobial coatings. Specialists use moisture meters, thermal imaging, HEPA equipment and warranty-backed products. For health-sensitive spaces or recurring mould, specialist bathroom, balcony and external wall waterproofing is the safer long-term choice.

Yes, we provide bathroom, balcony and external wall waterproofing across all Singapore property types including HDB bathrooms, condo balconies, landed homes. Each property type has different moisture drivers — HDB inter-flat leaks, condo MCST rules, landed basement or attic damp — and we adjust the scope accordingly.

Yes. We document moisture origin, take thermal images and write a report that can be shared with your neighbour, MCST, HDB or insurer. In many cases the actual repair must be done by the upstairs owner, but our report gives you defensible evidence to start the conversation.

Singapore's year-round humidity above 70% means mould can regrow quickly if ventilation and moisture control are ignored. Our bathroom, balcony and external wall waterproofing is designed for this climate: we select coatings that perform in high RH, improve ventilation where possible, and offer sensor monitoring to catch drift before mould returns.

Clear small items and furniture about one metre away from affected walls or ceilings. Keep windows accessible for ventilation. Have photos of the mould and any previous leaks ready. For bathroom, balcony and external wall waterproofing, we also appreciate knowing your aircon servicing history and any recent water incidents so we can bring the right equipment.