Roof Waterproofing
Protect your roof from water ingress and harsh weather with our durable waterproofing systems.
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Professional Waterproofing Services in Singapore
Waterproofing and roof leak repair for every part of a building that gets wet.
ASN Engineering provides expert waterproofing and roof leak repair services for roofs, bathrooms, balconies, terraces, walls and more — helping to prevent water damage and keep your property safe and dry.
- Source Found First
- Ponding Test Done
- Screed Reinstated
- Homes & Buildings
- Leak Detection & AssessmentWe find the source before we quote the fix.
- Quality Materials & WorkmanshipProven waterproofing systems, properly detailed.
- Reliable Service & On-Time CompletionScheduled works, finished when we said.
Our Waterproofing Services
We provide a full range of waterproofing and leak repair services for residential, commercial and industrial properties in Singapore.
Roof Leak Repair
Identify and repair the source of roof leaks, cracks and drainage issues to stop water ingress.
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Toilet & Bathroom Waterproofing
Waterproof wet areas such as toilets and bathrooms to prevent leakage, seepage and damage to adjoining walls and floors.
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Balcony & Terrace Waterproofing
Treat cracks, ponding areas and worn-out coatings on balconies, terraces and outdoor surfaces.
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Wall Seepage Repair
Investigate and repair damp walls, peeling paint, cracks and water penetration through external or internal walls.
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Leak Detection & Assessment
Inspect hidden water ingress, identify the real source of leakage and recommend the right waterproofing or repair solution.
Enquire NowCommon Water Leakage Problems We Fix
- Roof Leakage During Rain
- Ceiling Yellow Stains
- Wall Seepage & Dampness
- Pipe Leaks & Burst Pipes
- Bathroom Leakage & Wet Floors
- Balcony / Terrace Ponding
- Cracks & Failed Sealants
Why Choose ASN Engineering?
- Waterproofing SpecialistsExperienced waterproofing specialists in Singapore
- Quality MaterialsProven waterproofing systems, properly detailed
- Skilled & Trained TeamTrained crews, supervised works
- Safe Work PracticesProper access, proper method, proper workmanship
- Transparent PricingClear quotations with no hidden cost
- Workmanship WarrantyWarranty on the works, terms and conditions apply
- Residential, Commercial & IndustrialHomes, offices, shops and factories
Our Waterproofing Process
- 1
Enquiry & Photos
Share your problem and photos with us.
- 2
Site Inspection
We inspect and assess the affected area.
- 3
Identify Problems
We identify the source of water ingress.
- 4
Recommendation
We propose the most suitable solution.
- 5
Work & Waterproofing
Our team carries out repair and waterproofing works.
- 6
Handover & Support
Final inspection and after-sales support.
Frequently Asked Questions
How do I know whether I need waterproofing or just a repair?
That is what the inspection is for. A single crack letting water through is a repair; a stain that spreads after every storm, or paint that will not stay on a wall, usually means the system underneath has failed and patching it will not hold.
Can you find the source of a leak?
Yes. Water rarely comes out where it goes in — it tracks along a slab or a pipe and appears somewhere else entirely. We trace it before quoting, because the alternative is waterproofing the wrong area and being called back.
How much does waterproofing cost in Singapore?
It depends on the area, what has to come off first, how bad the substrate is underneath and how much access the works need. Send photos of the affected area and we will come back with a scope and a price.
Do you flood test the work?
On bathrooms and wet areas, yes — 24 hours before anything is tiled over. It costs a day and it is the only way to know the membrane holds before it is buried.
How long does the work take?
A bathroom is three to four days including the flood test and the retiling. A balcony is around three days. A flat roof depends on its size and on whether the falls have to be corrected.
Is there a warranty?
There is a workmanship warranty on the waterproofing, and the systems we use carry their own manufacturer warranty. Terms and conditions apply, and we set them out in the quotation rather than afterwards.
Recent Waterproofing Projects
Some of our recent waterproofing services projects in Singapore.
Condo roof waterproofing, Bukit Timah
Flat roof stripped back, falls corrected and a new membrane laid to the upstands
“Highly professional team. They solved our roof leakage quickly and the results are excellent!”
Bathrooms waterproofing, Tampines
Two bathrooms hacked back to screed, re-waterproofed, flood tested and retiled
“Good workmanship and clear explanation of the process. Highly recommended!”
Balcony waterproofing, Jurong
Failed coating removed, cracks cut out and filled, new membrane and screed laid
“They fixed our balcony leakage issue and the service was great from start to finish.”
Get Professional Waterproofing Services Today
Protect your property with ASN Engineering. Send us photos of the problem and we will tell you what it needs.