Concrete Crack Repair & Crack Injection FAQs

From assessing damage to preventing future cracks, Concrete Solutions® focus on practical solutions that deliver lasting results. Our goal is to help you recognise the value of timely repair and the difference it makes for structural durability and long-term cost savings.

Understanding concrete cracks

We assess concrete cracks by their type, cause, and impact on structure. Our focus is on how these cracks form, what conditions in New Zealand contribute to them, and how to distinguish between those that affect safety and those that are mainly cosmetic.

Frequently asked questions

We focus on practical and proven approaches to concrete crack injection repair in New Zealand. Our experience highlights the importance of correct materials, timing, and procedures to achieve durable and safe results.

What are the most effective methods for repairing cracks in concrete?

We commonly use epoxy and polyurethane injection systems. Epoxy bonds the concrete and restores structural strength, while polyurethane seals cracks and prevents water ingress. The choice depends on the crack width, movement, and exposure conditions.

How long does the injection repair process typically take?

Most small to medium repairs take a few hours to a full day. Larger or more complex cracks may require additional time for preparation, curing, and inspection. Environmental conditions such as temperature and humidity can also affect curing speed.

Can all types of concrete cracks be repaired with injection techniques?

We can repair most structural and non-structural cracks, but not every crack suits injection. Cracks caused by ongoing movement or severe corrosion may need alternative or additional methods. A site assessment determines suitability before work begins.

What are the long-term benefits of using injection methods for concrete crack repair?

Injection repairs restore integrity, prevent moisture penetration, and extend the service life of the structure. When applied correctly, they reduce the need for repeated maintenance and help maintain the original appearance of the concrete.

Are there any weather-related constraints for performing concrete injection repairs?

Yes. We avoid injection during heavy rain, freezing conditions, or extreme heat. These conditions can affect adhesion, curing, and material performance. Controlled environments or protective coverings can help maintain stable conditions when required.

What safety considerations should be taken into account during the injection repair process?

We follow strict safety procedures, including personal protective equipment, ventilation, and safe handling of resins and solvents. Proper training and containment prevent exposure to chemicals and ensure compliance with New Zealand safety standards.

Selecting the right contractor ensures the concrete injection repair lasts, meets safety standards, and prevents further damage. Concrete Solutions® are the experts, making sure the work is done correctly and efficiently.