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 Javier SimTrustindex verifies that the original source of the review is Google. I am very satisfied with the waterproofing works carried out by Flux Solutions Pte Ltd. From the initial site inspection to the completion of the project, the team was professional, responsive, and knowledgeable. They took the time to explain the issues and recommended suitable solutions without any hard selling. The workmanship was excellent, and the work area was kept clean and tidy throughout the process. Most importantly, the waterproofing problem has been resolved effectively. I would highly recommend Flux Solutions Pte Ltd to anyone looking for reliable and professional waterproofing services. Thank you to the team for the great job and excellent customer service!Posted on Oxley TowerTrustindex verifies that the original source of the review is Google. We engaged Mr Kelvin urgently for works to be carried out. Fuss free, communicates well and schedules work efficiently. Flux General Contractors assisted with our High Rise Signage & Glass Panel matters which was done safely & swiftly. Their men go above and beyond that we manage to meet safety and project completion within our Project Timeline. Thank You Mr Kelvin for your services.Posted on Hanis HazwanTrustindex verifies that the original source of the review is Google. Mr Kelvin from Flux General Contractor is beyond impressive. Quick to respond, fast assessment, good at identifying the defective area, sends quote fast and schedule works for rectification all timely. Men tasked for the works are very competent, and the quality of works are very assuring. I am very happy with their services and believe many others would to be it Commercial, Industrial or Residential. Kudos to Mr Kelvin and his team for always delivering quality work.Posted on AlvinTrustindex verifies that the original source of the review is Google. "I’ve been engaging Xavier from Flux Solutions since 2013. He’s consistently professional and responsive to all my water leakage problems, even on Sundays and public holidays. His team is responsible and does quality work. Highly recommend them for any water leakage issues!"Posted on Tze-Liang FooTrustindex verifies that the original source of the review is Google. Excellent job done by Flux. Technian Shipon did a good job to fix the leak and patched up the false ceiling. Finished with a paint work for the toilet. Thank you Flux Solutions!Posted on rulph lorenzeTrustindex verifies that the original source of the review is Google. Engaged Flux in rectification works for seepage issues. Sharif was very helpful and will extend extra mile to assist you in solving your issues. Sharif was also very fast to arrange the repair works after issuing the purchase order. Highly recommended.Posted on Kenneth OoTrustindex verifies that the original source of the review is Google. Have used them for two projects so far and I must say, the quality of work, responsiveness and expertise has been good. Their charges are also reasonable. Would recommend them if you need a contractor. Peter, who has been the manager for both my projects has been a very responsible point of contact.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.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.
