At DRYWAY, cracks in concrete are more than just unsightly, they are potential gateways for water infiltration that can cause serious damage and costly repairs.
We specialize in crack injection for waterproofing, a reliable method that seals cracks precisely at their source to stop water leaks and protect your property.
Using our advanced injection system, which applies a polyvinyl-based liquid, the product penetrates deep into the crack to treat and repair it, strengthening the structure while ensuring a watertight seal.
With a firm commitment to quality, DRYWAY delivers long-lasting protection backed by a 5-year guarantee (T&C apply).
Understanding crack injection for waterproofing
Crack injection is a targeted waterproofing technique that uses a liquid injected into concrete cracks to seal and restore the structure. Unlike traditional surface treatments, crack injection treats the problem from within, filling every void to prevent water passage.
This method effectively addresses leaks caused by hairline cracks or structural fissures, providing a durable solution that prevents moisture ingress and protects the integrity of concrete surfaces.
Benefits of crack injection include minimal disruption to your property, fast application times, and a cost-effective alternative to extensive repairs. By focusing on repairs at the crack’s origin, DRYWAY’s injection system prevents recurring leaks and enhances the life span of concrete surfaces.
Common concrete cracks and causes of infiltration
Concrete cracks treated by DRYWAY typically arise from stress, shrinkage, or construction defects. These can appear as hairline cracks, structural fissures, or larger splits in slabs, foundations, slabs, or retaining walls.
Water can easily penetrate through these cracks, leading to leaks in basements, floors, or roofs. The causes include:
- Thermal expansion and contraction
- Settling and shifting foundations
- Poor initial concrete curing
- Structural loading and vibration
DRYWAY’s crack injection process in detail
DRYWAY follows a detailed process designed to guarantee effective repair and waterproofing:
Inspection and assessment
Our experts conduct a thorough inspection to evaluate crack type, location, and extent of water ingress. This step ensures the right approach and material choice.
Surface preparation
Before injection, the crack surface is cleaned and prepared to ensure strong adhesion of the injection. Loose concrete, dust, and any coatings such as paint or efflorescence are carefully removed.
Drilling injection packers
The injection packers are carefully drilled at intervals appropriate to the concrete thickness and crack characteristics. These packers are often installed at approximately a 45-degree angle aimed to intersect the crack halfway through the structure.
However, the exact spacing, angle, and drill depth vary depending on the crack width, substrate thickness, water flow, and polyvinyl-based liquid properties, ensuring optimal penetration and sealing.
Usually, drilling starts at the lowest point of vertical cracks to allow the injection to flow upward, filling the entire crack thoroughly. The packers are often placed in a staggered pattern on alternating sides of the crack to maximize coverage and reduce the risk of creating new micro-cracks during injection.
Injection pressure and flow rate are carefully monitored and regulated throughout the process to ensure deep infiltration without damaging the concrete. This tailored approach guarantees effective and lasting water ingress control by addressing each crack’s unique geometry and site conditions.
Injecting the polyvinyl-based liquid
Using our unique and exclusive electric pump, DRYWAY injects low-viscosity liquid directly through the injection packers into the crack. The polyvinyl-based liquid gradually fills the crack completely, traveling both forward and backward from each injection packer.
Injection pressure is carefully controlled, starting low to allow the polyvinyl-based liquid to flow, then gradually increased as needed to advance the injection. Injection continues until the crack is fully sealed, with the polyvinyl-based liquid visible at adjacent injection packers before moving to the next location.
Sealing and finishing
Once injection is complete, the injection packers are removed, and any residual polyvinyl-based liquid is cleaned from the surface. The drilled holes are patched promoting a smooth finish, preventing future cracking.
This comprehensive approach treats the “wound” in the concrete by addressing the root cause inside and restoring surface integrity.
Why choose DRYWAY for crack injection

DRYWAY stands out for advanced technology and proven injection methods. Our tailored solutions serve residential, commercial, and large infrastructure projects, ensuring compliance with Australian standards and strict quality assurance.
Our injection process:
- Minimizes disruption with precise, efficient service
- Uses high-quality polyvinyl-based liquid designed for flexible, durable waterproofing
- Is backed by a 5-year guarantee, giving clients peace of mind (T&Cs)
With our expert team and trusted materials, DRYWAY ensures your crack injection is done right the first time, protecting your property against leaks and further damage.
Advantages over other waterproofing methods
Unlike surface sealants or coatings that only block water temporarily, crack injection penetrates and seals cracks from the inside, offering a permanent fix. This method ensures:
- Complete water barrier throughout the crack depth
- Preservation of concrete integrity
- Avoidance of expensive and extensive surface renovations
- Reduced risk of mold, mildew, and corrosion that arise from moisture intrusion
DRYWAY’s injection technology provides superior waterproofing performance without the mess and disruption of traditional waterproofing methods.
Applications of crack injection by DRYWAY
DRYWAY applies crack injection waterproofing in various scenarios, including:
- Residential roofs, balconies, and slabs experiencing leaks
- Commercial and apartment buildings with concrete façade cracks
- Infrastructure projects requiring compliance with technical standards
- Basements and retaining walls needing protection against rising damp and seepage
Our adaptable injection systems meet the unique needs of each project while delivering consistent quality waterproofing.
Safety and environmental considerations
DryWay prioritizes safety by using injection materials that are low in toxicity and environmentally friendly. Our team follows strict safety protocols during inspection, preparation, and injection stages, ensuring minimal impact on occupants and surroundings.
All waste materials from surface preparation and injection sites are responsibly managed and disposed of according to Australian environmental regulations.
Conclusion
Crack injection for waterproofing by DRYWAY is a precise, effective solution that addresses water leaks at their source in concrete structures.
Our thorough process, from inspection and injection packer drilling to polyvinyl-based liquid injection and finishing, delivers long-term waterproofing and structural repair, backed by confidence in our 5-year guarantee.
By choosing DRYWAY, property owners receive expert care, advanced technology, and peace of mind that their concrete cracks are permanently sealed and protected.
Contact DRYWAY today to schedule a professional assessment and learn how our crack injection services can safeguard your property against water damage and costly repairs.




