Singapore Waterproofing & Leak Repair Specialists
Not every leak comes from where you think it does. Flux Solutions is a Singapore waterproofing contractor specialising in accurate leak diagnosis before recommending the right repair.
About Us
Professional Waterproofing Contractor in Singapore

Water leakage problems are often misdiagnosed, leading to unnecessary hacking and repeated repairs. Flux Solutions focuses on identifying the true source of the leak first, so the repair addresses the root cause — not just the visible symptom.
Flux Solutions has been diagnosing and repairing water leakage across Singapore for more than 15 years — across HDB flats, private condominiums, landed homes, industrial and commercial properties.
Over time, one pattern repeats: the leak source and the visible water stain are rarely in the same location. Water travels through concrete slabs, structural cracks and pipe routes before appearing somewhere else entirely.
That is why every waterproofing job we take on begins with a proper diagnosis. We identify exactly where water is entering the structure before a single recommendation is made. The result is a waterproofing repair that addresses the actual problem — not just the visible symptom.

waterproofing services
Common leakage problems we fix
Bathroom Waterproofing Repair
Bathroom leaks are among the most common waterproofing failures in Singapore homes. The water seen on the ceiling below is rarely where the leak originates. Flux Solutions carries out targeted leak detection before applying the appropriate bathroom waterproofing repair.
Concealed Pipe Leak Detection
Water supply and waste pipes run beneath tiles and inside wall cavities throughout your property. When a concealed pipe leaks beneath floor tiles or inside wall cavities the damage often spreads silently before it becomes visible. Our leak detection approach locates concealed pipe leaks without the costly, disruptive hacking or guesswork associated with traditional methods.
Balcony Waterproofing
Balcony leaks typically show up during heavy rain, but the cause is almost always structural — a failed waterproofing membrane, a hairline crack in the concrete slab, or a compromised floor trap collar. Flux Solutions identifies which before applying the correct balcony waterproofing repair.
External Wall Leak Repair
Cracks in rendered external walls, failed sealant around window frames, and deteriorating expansion joints all allow rainwater to track inward during wet weather, causing interior stains and damage. Our external wall leak repair work addresses the entry point, not just the interior stain.
Roof Waterproofing Repair
Flat concrete roofs in Singapore are exposed to intense UV and heavy seasonal rainfall year-round. We repair roof leakage problems involving waterproofing membrane deterioration, failed roof screed, blocked gutters and ponding water — using the appropriate system for each roof type.
Understanding How Water Leaks Occur
Water leakage is misunderstood more often than not — because the location where water appears is rarely the actual leak source.
Water travels.
It follows the path of least resistance through concrete slabs, structural cracks, grout lines and tile gaps before surfacing somewhere else entirely. Knowing this is the difference between a repair that holds and one that fails within a year.
Misunderstanding how water travels is the main reason many waterproofing repairs fail prematurely.
Bathroom waterproofing failure
e.g., beneath the tile bed.
Concealed pipe leaks
e.g., beneath tiles or inside walls
Balcony leakage
e.g. during heavy rain from membrane or structural failure.
Structural crack seepage
e.g. through concrete slabs and beams.
External wall and window frame leakage
e.g. during wet weather
How we work
01
Inspect & Diagnose
Describe Inspect & Diagnose

02
Recommended system + Quote
Describe Recommended system + Quote

03
Execute + Warranty
Describe Execute + Warranty

Why Choose Flux Solutions Waterproofing
Transparent process from inspection to completion — we explain what we found, why it matters, and what the repair involves before any work begins. No surprises, no hidden costs.
15+ years of waterproofing experience across Singapore
HDB flats, private condominiums, landed properties and commercial buildings
BCA Registered Contractor
recognised and compliant with Singapore building standards
Dedicated in-house team of ~60 skilled workers
no subcontracting, ensuring consistent workmanship and quality control
Diagnosis before quotation
we identify the actual leak source first before recommending any repair
Repair methods matched to the actual failure
no one-size-fits-all solutions
Lower risk of repeat leaks
repairs are based on evidence, not assumptions
Posted on Scott LimTrustindex verifies that the original source of the review is Google. Had a site survey with Sharif. Honest and professional assessment. Will definitely call for future requirements.Posted on Adeline CheahTrustindex verifies that the original source of the review is Google. Good and prompt response from Peter and their workmen were professional in completing the job and cleaning up the site after works ended. Have been using this company for several other job sites as well.Posted on Chris ChiaTrustindex verifies that the original source of the review is Google. Flux solutions has been helping with the waterproofing solutions for my house for past few years. Kelvin Lim is very proactive and responses very quickly, even during after office hours on issues.Posted on jimmy luTrustindex verifies that the original source of the review is Google. Kelvin Lim of Flux Solutions manage well to get the job done.Posted on NalluRaj R.S.Trustindex verifies that the original source of the review is Google. I engaged Flux Solutions Pte Ltd to solve a leakage problem in a bedroom and 2 bathrooms. Lin, the team leader investigated the problem and submitted a quotation which was reasonable. Work began promptly and all the problems were resolved within a few days. I am very happy with how the whole project was planned and carried out. I would recommend Flux Solutions to anyone without hesitation.Posted on Amit shuklaTrustindex verifies that the original source of the review is Google. Work done nicely. Prompt and effective communication.Posted on Avon HoTrustindex verifies that the original source of the review is Google. We had engaged Flux Solutions on several occasions when dealing with leakages in our estate and had been pleasantly please with their works that they had carried out so far. One of their staff, Mr Peter had been extremely helpful and consistently patient in attending to several leakage cases. Given that the source of the leaks was not immediately apparent, the investigations were often challenging and required coordination and follow ups. He was able to resolve most leaks and issues do not reoccur again.Posted on Kevin GohTrustindex verifies that the original source of the review is Google. Was recommended to Peter of Flux Solutions by a relative to do meshing work to seal gaps in our roof to keep civets out. Peter and team were responsive, professional and efficient. Along the way, also got them to do some waterproofing work for a section of the roof. Overall, good experience and will use them again should the need arise.Posted on LxEwis LimTrustindex verifies that the original source of the review is Google. Kelvin is very professional and reliable. He always takes the time to properly identify the root cause of the issue and clearly explains the solution before providing any quotation, which gives great peace of mind. His workmanship is solid, and what truly stands out is his excellent after-sales service. He is always reachable, responds promptly, and follows up until the problem is fully resolved — without any additional charges. It’s rare to find someone so responsible and trustworthy.Posted on Lau Boon ChengTrustindex verifies that the original source of the review is Google. Fast and prompt reply upon submited my queries, Kelvin contacted me almost immediate and understand my problems he recommend me the possible solution and fix the nearest date available according to my schedule to start work.Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
FAQs
We carry out a site inspection to identify the likely cause of the leak and recommend the appropriate repair method.
For most residential cases, this is provided as part of our quotation process.
For complex cases requiring specialised testing or written reports, we will advise separately before proceeding.
Yes, if the cause is grout failure, joint gaps or minor seepage.
However, full waterproofing replacement is required if the membrane has failed.
Water leakage problems rarely resolve on their own and tend to get worse over time.
If you are dealing with ceiling stains, wet bathroom walls, balcony seepage or any other sign of water intrusion, contact Flux Solutions today to arrange a professional leak inspection and accurate waterproofing diagnosis.
