If your bathroom or toilet floor is showing signs of dampness, ceiling stains from the unit above, or a musty smell that just won't go away, you're not alone. Many homeowners and businesses across Serangoon deal with the same frustrating issue every year, and Bathroom Waterproofing Singapore can help address these problems before they lead to more extensive water damage. It often comes down to one thing: waterproofing that has failed or was never done properly in the first place.
At Aldisg, we specialise in bathroom waterproofing Serangoon homeowners can rely on, along with full toilet waterproofing Serangoon services for HDB flats, condos, landed homes, and commercial units across the area. Whether you're renovating, fixing a persistent leak, or preparing for a landlord handover, our team brings hands-on local experience, proper wet-area treatment, leak detection, and practical waterproofing solutions to every job.
Our promise is simple: no shortcuts, no guesswork, just reliable waterproofing solutions residents and business owners can trust, backed by warranty and real accountability.
Bathroom waterproofing is the process of applying a protective membrane, usually a cementitious coating, liquid membrane, or PU-based system to floors and walls before tiling, to stop water from seeping into the concrete slab below. Once water gets past the tile grout and into the structure, it doesn't just stay in your bathroom. It travels.
This is especially important in Singapore because bathrooms and toilets are frequently exposed to water and humidity. Problems can become more noticeable in older HDB flats, condominiums, commercial buildings, and properties with ageing waterproofing systems
There's also a regulatory angle worth knowing. Is bathroom waterproofing compulsory in Singapore for HDB flats? Yes. HDB requires waterproofing to be reinstated when tiling works are carried out in a bathroom, and it must be done by a registered contractor. Skipping this step, or using an unlicensed contractor, can lead to disputes with your Town Council and your neighbour.
As a wet-area waterproofing contractor in Singapore homeowners and facility managers turn to, Aldisg handles everything from small residential toilets to large commercial waterproofing projects, including offices, retail units, and F&B outlets.
Bathroom waterproofing Singapore starts from S$500 for suitable waterproofing projects.
Minor bathroom and toilet leak repairs can start from S$150, depending on the issue.
Larger or more complex waterproofing projects may cost more based on area, condition, and required method.
Aldisg provides professional wet-area treatment, toilet leak repair, PU injection, and no-hacking solutions where suitable.
Emergency leakage issues can be assessed quickly to help prevent further water damage.
Every project is assessed based on the actual leakage source and property condition.
Clear pricing helps you understand the expected scope before work begins.
We serve HDBs, condos, landed properties, offices, hotels, F&B outlets, and other commercial properties across Singapore.
Need help now? Request a waterproofing quotation from Aldisg today.
Every project starts with a proper site inspection. We don't quote blind. Here's what our service typically covers:
Site assessment and leak diagnosis — identifying whether the issue is from the floor membrane, wall penetration, pipe joints, or floor trap
Surface preparation — hacking and removing old tiles where needed, or using non-hacking waterproofing Singapore methods where structurally suitable
Membrane application — cementitious, liquid, or elastomeric waterproofing membrane applied to floor and up to 300mm–1800mm on walls (wet areas get full height coverage)
PU injection waterproofing Singapore for hairline cracks and hard-to-reach seepage points without full hacking
Ponding test — a mandatory 24–48 hour water ponding test before re-tiling, to confirm the membrane is fully sealed
Re-tiling and finishing works, matching existing tile profiles where possible
Sealant and waterproofing at pipe penetrations, floor traps, and wall-floor joints the most common leak points
Warranty documentation for bathroom waterproofing warranty Singapore coverage, typically 5–10 years depending on scope
We also offer emergency toilet leak repair Singapore callouts for urgent cases where a leak is actively damaging the unit below.
A waterproofing membrane creates a protective barrier beneath or around the appropriate wet-area surfaces. The suitable membrane system depends on the substrate, existing condition, and project requirements.
If you are comparing bathroom waterproofing membrane Singapore options, our team can assess the area and recommend an appropriate system.
In some situations, waterproofing may be possible without removing all existing tiles.
Non-hacking waterproofing is a waterproofing approach that can be carried out without fully removing existing bathroom tiles. Whether it is suitable depends on the leakage source, tile condition, substrate, and existing waterproofing system.
If you are searching for a bathroom that can be waterproofed without removing tiles, an inspection is important before choosing this approach.
PU injection can be considered for certain types of cracks or water ingress where injection treatment is technically suitable.
For customers searching for PU injection waterproofing Singapore, the method should be selected based on the actual leakage path rather than simply because it is a popular waterproofing technique.
Different property types can have different waterproofing requirements.
Older bathrooms may experience leakage because of ageing waterproofing, damaged grout, cracks, plumbing issues, or deterioration around wet areas.
Our HDB service focuses on identifying the actual leakage source before recommending the appropriate waterproofing treatment.
For condominiums, leakage can affect neighbouring units and may require coordination with property management or other parties.
Our condo solutions can address recurring water leaks, wet-area deterioration, moisture penetration, and other related issues based on the property's condition.
For landed homes, wet-area protection may form part of renovation, maintenance, repair, or property handover work.
We also support landed handover waterproofing requirements where treatment is needed before completing a property handover.
Commercial bathrooms experience frequent daily use, making recurring water leakage a serious maintenance concern.
Aldisg provides commercial waterproofing services Serangoon and surrounding areas for businesses and property-related projects.
We provide office toilet waterproofing Singapore for workplaces where toilet leakage can disrupt employees and daily operations.
For hospitality businesses, we can also assist with hotel bathroom waterproofing Singapore and hotel guest bathroom leak repair Singapore requirements.
For healthcare properties, our services can support medical centre waterproofing contractor Singapore and clinic toilet waterproofing Singapore needs.
For F&B businesses, we provide solutions for restaurant toilet waterproofing Singapore and F&B outlet waterproofing services Singapore where wet-area leakage needs attention.
Recurring toilet leaks can become a maintenance headache for facility and property managers, especially in high-use commercial buildings.
Aldisg can support facility manager waterproofing contractor Singapore requirements and property manager toilet waterproofing services Singapore for suitable projects.
The objective is to identify the source, select an appropriate treatment method, and reduce the likelihood of recurring leakage.
Bathroom waterproofing is sometimes required as part of reinstatement or property handover work.
Our reinstatement waterproofing Singapore service can be considered when tenants or landlords need wet-area work completed before returning a property.
If you are preparing a property for handover, you may also be looking for landlord handover toilet waterproofing Singapore or asking, do I need to re-waterproof the toilet before landlord handover?
The answer depends on the property's condition, previous works, leakage history, and the requirements agreed between the relevant parties.
The bathroom waterproofing cost in Singapore varies depending on factors such as bathroom size, leakage severity, waterproofing method, surface condition, access, and whether hacking or reinstatement work is required.
A simple leak repair and a complete wet-area waterproofing project should not be treated as the same job. Smaller issues may only require targeted leak treatment, while extensive damage can require surface preparation and a new waterproofing membrane.
If you are comparing waterproofing prices in Singapore, the most reliable approach is to have the affected area assessed first. This helps identify the leakage source and determine the most suitable waterproofing solution for your property.
You can contact Aldisg for a waterproofing quotation Singapore based on your property's actual requirements.
Aldisg has 5 years + of experience in construction-related services, with a focus on practical, reliable solutions for residential, commercial, and industrial properties.
Our team includes skilled engineers, craftsmen, and project managers who work with attention to quality, safety, and project requirements.
From residential bathrooms to commercial toilet facilities, we approach each project according to the property's condition and intended use.
We do not assume that every leak needs the same treatment. Depending on the situation, options may include membrane waterproofing, non-hacking solutions, or PU injection treatment.
We aim to explain the problem, recommended solution, expected work, and relevant considerations clearly before work begins.
Aldisg's stated approach is built around quality, safety, timely project completion, and cost-effective solutions.
"Aldisg redid our toilet waterproofing before we handed the unit back to our landlord. Fast, tidy, and they explained everything clearly. No issues since. Recent Serangoon client"
Need waterproofing for another part of your property? Aldisg provides professional waterproofing solutions for different residential, commercial, and industrial areas across Singapore. Choose the service that matches your needs and learn more about the right solution for your property.
From water seepage to recurring leaks, the right waterproofing solution can help protect your property from moisture damage. Our Waterproofing Singapore services cover different areas of residential, commercial, and industrial properties.
Find the right waterproofing solution for your property.
Roof leaks can cause water damage, damp patches, mould, and costly repairs if left untreated. Our Roof Waterproofing Singapore service helps protect your roof from rainwater penetration and recurring leaks.
Protect your roof before a small leak becomes a major problem.
Cracks and water penetration through external walls can lead to damp interiors, peeling paint, and long-term damage. Our External Wall Waterproofing Singapore solutions help protect your building from moisture entering through exposed walls.
Stop external water ingress and protect your property.
Basement water seepage can create persistent dampness, unpleasant odours, mould, and damage to walls or flooring. Our Basement Waterproofing Singapore service focuses on addressing water ingress and improving protection in below-ground areas.
Keep your basement dry, protected, and ready for use.
A damaged balcony waterproofing system can allow rainwater to penetrate beneath tiles and into the structure. Our Balcony Waterproofing Singapore solutions help reduce water seepage and protect balcony areas from recurring moisture problems.
Protect your balcony from leaks before the damage spreads.
Protect your property from leaks and water damage. Get a professional waterproofing quote from Aldisg today.
Every bathroom leak is different, so the final cost depends on the size of the area, leakage source, existing surface condition, waterproofing method, and whether hacking or reinstatement is required.
At Aldisg, Bathroom and toilet Waterproofing Singapore starts from S$500 for suitable waterproofing projects. We also handle smaller leak repairs and targeted treatments from lower price points, while larger or more complex waterproofing work is quoted after assessing the actual condition of the bathroom.
Our pricing is designed to give you a clear idea of what different types of bathroom and toilet waterproofing work may cost before you proceed.
| Service | Starting Price | What's Included |
|---|---|---|
| Minor Bathroom Leak Repair | From S$150 | Small leak, joint, grout or localised seepage repair |
| Toilet Leak Repair | From S$200 | Inspection and targeted repair for minor toilet leakage |
| PU Injection Treatment | From S$300 | Targeted injection for suitable cracks and active water paths |
| Bathroom Seepage Treatment | From S$300 | Treatment for selected damp or seepage areas |
| No-Hacking Waterproofing | From S$400 | Suitable treatment over existing tiles where conditions allow |
| Bathroom Waterproofing | From S$500 | Professional waterproofing treatment for suitable bathroom areas |
| Toilet Waterproofing | From S$500 | Waterproofing treatment for toilet floors and wet areas |
| HDB Bathroom Waterproofing | From S$500 | Waterproofing solution based on bathroom condition and scope |
| Commercial Toilet Waterproofing | From S$700 | Waterproofing for offices and other commercial toilet areas |
| Large Bathroom Waterproofing | From S$900 | Larger areas or more extensive waterproofing requirements |
| Full Hacking & Re-Waterproofing | From S$1,200 | Hacking, surface preparation, waterproofing and related reinstatement |
| Complex Commercial Waterproofing | Custom Quote | Larger commercial, multi-area or complex leakage projects |
Aldisg provides bathroom and toilet waterproofing services across Singapore, with regular coverage in Serangoon, Farrer Park, Paya Lebar, Bugis, Rochor, and Beach Road.
We also take on waterproofing and related building projects in other parts of Singapore, including Pasir Ris, depending on the project scope and site requirements.
Genuine feedback and verified experiences from residential, commercial, and property owners across Singapore.
Aldi Construction works is very response and experience worker especially Renovation services and External painprinted by Rope access , Thnaks to Aldi Teams
The workmanship was excellent and efficient. The bed platform was built exactly as described, and the overall quality met my expectations.
They did an excellent renovation job for my Clan premise. Work includes installation of big ceiling Fan (replacement unit), strength staircase support with termite coatings and miscellaneous works for a reasonable price. Will certainly recommend to friends and those looking at this web review. 👍 👍 👍
Reliable handyman that I have used and recommend
HDB interior pairing good & satisfaction professional attitude
Professional service’s,good workmanship,and reasonable pricing. The team completed the renovation smoothly and on time. Highly recommended.
Bathroom waterproofing in Singapore can start from around S$500 for suitable projects. The final cost depends on bathroom size, leakage severity, existing surface condition, waterproofing method, and whether hacking or reinstatement is required. Minor leak repairs may cost less, while larger waterproofing projects require a customised quotation.
Waterproofing is required for certain HDB bathroom renovation works involving replacement of floor finishes. Applicable requirements include the use of suitable waterproofing systems and water testing after the work. Always check the latest HDB requirements before starting renovation or repair work.
Yes, some wet areas can be treated without removing existing tiles. However, this depends on the leakage source, tile condition, substrate, and existing waterproofing system. A professional inspection can determine whether a no-hacking solution can properly address the underlying moisture problem.
Water stains, damp patches, peeling paint, or moisture appearing on the ceiling below can indicate a bathroom leak. However, the source may also be plumbing, pipes, floor traps, or other areas. A professional inspection and appropriate water testing can help identify whether the leakage is coming from your bathroom.
Bathroom waterproofing can last for many years when the correct system is properly installed and maintained. Its lifespan depends on material quality, installation, substrate condition, water exposure, bathroom usage, and maintenance. Waterproofing may deteriorate sooner if the membrane is damaged or incorrectly installed during renovation work.
The best waterproofing method depends on the bathroom's condition, leakage source, substrate, and existing waterproofing system. Membrane waterproofing, no-hacking solutions, and PU injection can each be suitable for different situations. A professional assessment helps determine which method provides the most appropriate solution for the specific bathroom.
You may need to hack bathroom tiles when the existing waterproofing has failed and access to the underlying surface is necessary. However, hacking is not required for every leakage problem. Depending on the condition, a suitable no-hacking treatment may be possible. The correct approach should be determined after inspection.
Yes, Aldisg provides emergency bathroom and toilet leak repair for urgent water leakage problems. Our team can assess issues such as active bathroom leaks, toilet leakage, water seepage, and related damage, then recommend a suitable repair or waterproofing solution based on the property's actual condition.
A professional bathroom waterproofing service can include leakage inspection, surface preparation, waterproofing treatment, sealing, and post-treatment checks. Depending on the project, additional work may include membrane application, PU injection, no-hacking treatment, hacking, screed work, tile reinstatement, or water testing. The exact scope depends on the bathroom's condition.
Bathroom waterproofing can take from a short targeted repair to several days for a complete waterproofing project. The timeline depends on the bathroom size, leakage severity, waterproofing method, surface preparation, curing requirements, water testing, and reinstatement work. Your contractor should provide a clearer timeframe after assessing the actual site condition.
If your bathroom is actively leaking, arrange a professional inspection as soon as possible to identify the source and prevent further damage. Where practical, reduce water use in the affected area and check for visible plumbing issues. Aldisg provides emergency toilet leak repair Singapore and suitable bathroom waterproofing solutions based on the leakage condition.
Last month, we helped a homeowner near 444 Serangoon Road who had been dealing with a ceiling leak complaint from the unit directly below. After inspection, we found the original waterproofing membrane installed over 20 years ago had cracked at the floor trap junction.
Water was seeping through a failed floor trap seal and travelling down through the slab into the unit below, causing visible staining and a neighbour dispute.
We hacked the affected section, reinstated the membrane with a cementitious waterproofing system, sealed the floor trap and pipe penetrations, and carried out a 48-hour ponding test before re-tiling.
No further seepage reported after two months, the neighbour dispute was resolved, and the homeowner received a 7-year warranty on the work.
Don't let a small leak turn into costly water damage or problems with the unit below. Book professional bathroom and toilet waterproofing Serangoon services with Aldisg today. We'll assess the issue, recommend the right solution, and provide a clear quotation based on your property's actual condition.