Polyurethane Crack Injection Services in Brisbane & Gold Coast
Advanced polyurethane crack injection technology to seal leaks, stop water ingress, and strengthen concrete structures.
About Polyurethane Crack Injection
Polyurethane crack injection is a highly effective method for sealing cracks and stopping water leaks in concrete structures. When injected into cracks, polyurethane resin expands to fill voids and create a flexible, waterproof seal. Our team has over 20 years of proven expertise in delivering expert concrete repairs using this advanced technology for basements, lift pits, retaining walls, and structural elements.
Benefits of Our Polyurethane Crack Injection Services
Immediate Water Stop
Polyurethane injection can stop active water leaks within minutes, providing immediate protection for your structure.
Flexible Seal
Unlike rigid repair methods, polyurethane remains flexible after curing, accommodating minor structural movement without cracking.
Deep Penetration
The low-viscosity resin penetrates deep into cracks, filling even hairline fractures throughout the concrete depth.
Minimal Disruption
Injection can be performed from the accessible side of the structure, often without excavation or major access requirements.
Get a Free Quote
Contact our team for expert advice and an obligation-free quote for your polyurethane crack injection project.
Request a QuoteWhy Choose Us
- QBCC License #15438819
- 20++ Years Experience
- Up to 6.5 years Workmanship Warranty
- Australian Standards Compliant
Our Polyurethane Crack Injection Process
We follow a systematic approach to ensure quality results and lasting protection for your property.
Crack Assessment
We evaluate the crack type, cause, and extent to determine the most appropriate injection resin and technique.
Surface Preparation
Injection ports are installed along the crack at regular intervals, and the surface is sealed to contain the resin.
Resin Injection
Polyurethane resin is injected under controlled pressure, filling the crack from bottom to top or from the injection point outward.
Expansion & Curing
The resin expands on contact with water, filling all voids and curing to form a durable, flexible waterproof barrier.
Port Removal & Finishing
Injection ports are removed and the surface is restored to its original appearance with appropriate patch materials.
Frequently Asked Questions
Common questions about our polyurethane crack injection services.
What types of cracks can be repaired with polyurethane injection?
Polyurethane injection is ideal for non-structural cracks, shrinkage cracks, cold joints, and active water leaks. For structural cracks, we may recommend epoxy injection instead, which restores structural strength.
How long does polyurethane crack injection last?
When properly applied, polyurethane crack injection provides a permanent seal. The flexible nature of the cured resin allows it to accommodate minor movement without failing.
Can cracks be injected if water is actively leaking?
Yes, polyurethane is specifically designed for wet conditions. It actually uses water to cure and expand, making it ideal for stopping active leaks.
What's the difference between polyurethane and epoxy injection?
Polyurethane is flexible and ideal for waterproofing non-structural cracks. Epoxy is rigid and used when structural strength restoration is required. We assess each crack to recommend the appropriate solution.
Related Services
Other services that may be relevant to your waterproofing needs.
Need Polyurethane Crack Injection Services?
Contact our expert team today for a comprehensive assessment and obligation-free quote. We service Brisbane, Gold Coast, Tweed, and all of South East Queensland.