Concrete Repair Specialists Delivering Reliable Structural Solutions

Cracked driveways, uneven footpaths, or worn concrete surfaces can make any property look neglected. When damage appears, it’s easy to ignore it, but small cracks often lead to bigger problems. Concrete repair specialists restore strength, safety, and appearance to damaged concrete before the issues spread.

Concrete Solutions® know how to assess the cause of damage and apply the right repair methods for lasting results. Whether it’s structural cracks, surface wear, or weather damage, they use proven techniques to bring concrete back to its original condition.

Our specialists start by examining the condition of the concrete to determine the type and extent of damage. They look for cracks, spalling, discolouration, or corrosion. Each issue can signal different underlying problems such as moisture intrusion, chemical exposure, or ground movement.

Repair techniques

Repair techniques depend on the type and severity of damage. For small cracks, specialists may use epoxy injection or polyurethane resin to seal and bond the concrete. These materials restore strength and prevent water from entering.

Some projects require structural strengthening using fibre-reinforced polymers.These methods improve load capacity and extend the life of the structure.

By selecting materials carefully, we ensure long-lasting repairs that perform well under New Zealand’s varied climate conditions.

Cracking and spalling

Cracks form when concrete experiences stress from shrinkage, heavy loads, or temperature changes. Small cracks may seem harmless but can allow water and salts to enter, leading to deeper structural problems.

Spalling occurs when concrete flakes or breaks away from the surface. It often results from freeze-thaw cycles or corrosion of the reinforcing steel beneath. Spalled areas expose the reinforcement, speeding up deterioration.

Key indicators of cracking and spalling include:

• Visible lines or gaps in the surface
• Rough or uneven patches
• Loose or flaking concrete pieces

Repair methods depend on the cause and depth of the damage. Epoxy injections can seal fine cracks, while larger ones may need patching with polymer-modified mortar. Preventive maintenance, such as sealing joints and controlling moisture, helps reduce future cracking and spalling.

Corrosion of reinforcement

Steel reinforcement inside concrete can corrode when moisture and oxygen reach it. Chlorides from de-icing salts or marine exposure often accelerate this process. As steel rusts, it expands, creating internal pressure that causes cracking and spalling around the bars.

Common signs of corrosion include:

• Rust stains on the surface
• Cracks following the pattern of reinforcement
• Delamination or bulging concrete

Repairing corrosion involves removing damaged concrete, cleaning or replacing the steel, and applying corrosion inhibitors or protective coatings. In severe cases, cathodic protection systems can slow or stop further corrosion. Regular inspection and waterproofing are essential to keep reinforcement dry and protected.

Surface deterioration

Surface deterioration happens when the top layer of concrete wears away due to abrasion, chemical attack, or weathering. Traffic, freeze-thaw cycles, and exposure to acids or sulphates can weaken the surface over time.

Treatments vary by severity. Light damage may be fixed with resurfacing compounds or sealers. More advanced wear may require grinding, overlaying, or replacing the affected section. Regular cleaning and sealing can extend the life of exposed concrete surfaces.

Cost-effectiveness

Hiring professionals may seem costly upfront, but it often saves money over time. Proper repair prevents small cracks from expanding into major structural issues that require full replacement.

Get in touch with Concrete Solutions® for a complimentary assessment of your concrete repair needs.