01 / The problem
What goes wrong.
Live, flowing leaks in concrete cannot be sealed with surface treatments. The water pressure simply blows the patch off.
02 / The solution
How we fix it.
Injection of expanding hydrophobic polyurethane resin into the crack. The PU reacts with water, foams to 20× volume, and physically blocks the leak path while bonding to the substrate.
03 / Project photos
04 / Materials
Authorised-applicator products.
- SIKA Injection-101 RC
- FOSROC Conbextra GP
- DENKA Hydro-Stop
05 / Scope & timeline
What's included.
- Scope
- Crack mapping, packer drilling, resin injection, packer removal, surface dressing.
- Typical timeline
- 1–3 days per typical crack pattern.
06 / Service areas
Where we work.
- Kuala Lumpur
- Petaling Jaya
- Subang Jaya
- Shah Alam
- Mont Kiara
- Bangsar
- Damansara Heights
- TTDI
- Sri Hartamas
- Cheras
- Selayang
- Batu Caves
- Puchong
- Kepong
- Setapak
- Wangsa Maju
- Ampang
- Setia Alam
- Kota Damansara
- Sungai Buloh
- Cyberjaya
- Putrajaya
- Kajang
- Klang
- Nilai
07 / FAQ
Service-specific questions.
Often yes. If the existing patch is on the dry side, we typically drill from the wet side and inject behind it — sealing the original path.
Related guides
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