Skip to main content
Crack Injection & Structural Sealing, Supcon Group remedial work

Crack Injection & Structural Sealing

Not every crack is a structural problem. But every crack tells a story.

Cracks can indicate building movement, concrete shrinkage, thermal expansion, water ingress, reinforcement corrosion or structural loading.

While some cracks are cosmetic, others can allow moisture into the structure, accelerate deterioration and contribute to more significant building defects over time.

At Supcon, we investigate cracking, identify the cause and implement remediation solutions designed to restore performance and protect building assets.

Understanding Structural Cracking

Buildings move. Materials expand and contract. Concrete shrinks. Structures respond to environmental conditions and loading. Cracks can develop for many reasons.

The important question is not whether a crack exists. The important question is why it exists.

Why Cracks Develop

Concrete Shrinkage

Thermal Movement

Structural Movement

Waterproofing Failures

Reinforcement Corrosion

Construction Deficiencies

Why Surface Repairs Fail

Many cracks are treated using:

  • Surface fillers
  • Render patching
  • Paint coatings
  • Silicone applications

These treatments may hide the crack temporarily but often fail to address the full depth of the defect. If movement or moisture remains active, the crack commonly returns.

The Supcon Approach

  1. 01

    Investigation

    Assessment of crack patterns, movement, structural implications, moisture ingress and associated defects.

  2. 02

    Diagnosis

    Identification of the cause before selecting a repair method.

  3. 03

    Scope Development

    Preparation of a detailed remediation strategy.

  4. 04

    Crack Injection & Sealing

    • Epoxy Injection. For structural bonding and strength restoration.
    • Polyurethane Injection. For active water ingress and waterproofing applications.
    • Acrylic Resin Injection. For flexible movement-related applications.
  5. 05

    Protection

    Long-term solutions designed to reduce deterioration and improve structural performance.

Typical Projects

  • Basement Structures
  • Apartment Buildings
  • Commercial Buildings
  • Car Parks
  • Facades
  • Concrete Structures

Why Choose Supcon?

01

Investigation Before Recommendation

Every remediation strategy begins with understanding the cause of deterioration.

02

Director-Led Delivery

Direct involvement from Thomas throughout the project lifecycle.

03

Detailed Scopes Of Work

Clear documentation supporting informed decision-making.

04

Long-Term Solutions

Repairs designed to improve durability and reduce future risk.

05

Construction Expertise

Extensive experience across remedial building and structural works.

Frequently Asked Questions

Are All Cracks Structural?
No. Many are cosmetic while others may indicate movement or deterioration. Investigation determines the appropriate response.
Can Crack Injection Stop Water Leaks?
Yes. Polyurethane injection is commonly used to stop active water ingress.
Will The Crack Return?
That depends on the cause. Addressing the underlying issue significantly improves long-term performance.

Concerned About Structural Cracking?

If you have noticed cracks that are growing, leaking or repeatedly returning, Supcon can help determine the cause and develop the most appropriate remediation strategy.