Brisbane Crack Injection

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Brisbane Crack Injection

When it comes to maintaining the structural integrity of your property, concrete repair is a crucial service you can’t afford to overlook. Over time, concrete structures can develop cracks due to various factors such as weather changes, ground movement, or even the natural ageing process. 

Left unattended, these cracks can lead to serious structural issues requiring costly repairs or replacements. This is where Raise + Relevel steps in.

Raise + Relevel is your trusted partner for Brisbane crack injection services. We specialise in helping homeowners and businesses maintain the structural integrity of their concrete structures. From balcony repairs to bathroom waterproofing, we’ve got you covered.

What is crack injection?

Crack injection is a reliable method for repairing concrete cracks in commercial flooring, industrial floors and home garages. It involves injecting a special adhesive, often an epoxy resin or polyurethane resin, into the crack to seal it and restore the structure’s strength. Here are a few benefits of crack injection:

Fast and efficient

One of the major advantages of crack injection is its speed. The process can be completed quickly, often in just a few hours or less, depending on the extent of the damage.

Minimally invasive 

Crack injection is a non-destructive method that doesn’t require extensive demolition or excavation. The process involves injecting a special resin into the cracks, which then hardens to seal the cracks.


When done correctly, crack injection is highly effective at stopping current cracks from spreading and preventing new ones from forming. The injected resin forms a strong bond with the concrete, helping to restore its original strength and integrity.


The crack injection process can repair various concrete structures, including foundations, walls, floors, balconies, and driveways.


Compared to other repair methods, crack injection is often more cost-effective. It saves you money by addressing the problem at its source and preventing further damage, which could lead to more costly repairs.

Prevents water infiltration

Crack injection effectively seals the cracks in concrete, making it an excellent solution for remedial waterproofing. This helps avoid mould growth, water damage, and structural weakening.


The materials used in crack injection are durable and designed to last. Once the resin has been injected and has cured, it provides a long-term solution to the problem rather than just a quick, temporary fix.

How does crack injection work?

The crack injection process is meticulous and requires a keen eye for detail and expert handling. Here’s how our team at Raise + Relevel approaches crack repairs:

1. Assessment 

Every concrete crack injection job begins with a thorough assessment. Our team will inspect the concrete structure to identify the crack’s type, size, and depth. We’ll consider the age of the concrete, the cause of the crack (if known), and the structure’s current condition. This helps us find the best approach for repairing the crack.

2. Planning

With the assessment complete, we develop a tailored plan for the crack injection. Here, we’ll decide on the type of resin to use, for example, epoxy or polyurethane. Epoxy resins are typically used for structural repairs as they bond strongly with concrete and restore its original strength. Polyurethane resins are flexible and ideal for sealing cracks that may expand or contract due to temperature changes or movement.

3. Preparation 

Before the injection occurs, we prepare the crack. This involves cleaning the crack and surrounding area to remove dirt, debris, or loose concrete. This step is crucial as it ensures the resin can bond properly with the concrete.

4. Injection

We proceed with the injection once the crack is ready. Using specialised equipment, we inject the chosen resin into the crack under controlled pressure. The resin travels throughout the crack, filling it from front to back and top to bottom. This stage may be repeated several times to ensure the crack is thoroughly sealed.

5. Curing

We allow the resin to cure after the injection. The curing time can vary depending on the type of resin used and the ambient conditions. During this time, the resin hardens and forms a strong bond with the concrete, effectively sealing the crack.

6. Post-injection inspection

After the resin has fully cured, we conduct a final inspection to ensure the crack has been completely sealed and the structure is sound. We may perform additional treatments or adjustments to ensure the highest quality repair if necessary.

Through this detailed and careful process, crack injection provides a durable and long-lasting solution for concrete cracks. It’s an effective method that restores the structural integrity of your concrete and prevents future damage.

When is crack injection the best solution?

Crack injection is the ideal solution for concrete cracking in concrete slabs, walls, and other concrete structures. It’s especially effective for basement waterproofing, leak repairs, and water leak repairs where waterproofing membrane application alone may not suffice.

Comparing crack injection with other methods

You’ll find it’s quite a game changer when you put crack injection alongside other methods. It’s less disruptive and more cost-friendly than concrete slab repairs, which can be a time and money sink. 

But remember, crack injection isn’t the solution for every type of damage. For serious issues like concrete spalling or cancer, you might need to roll up your sleeves and dive into more intensive structural repairs.

Brisbane crack injection cost

What is the cost of crack injection in Brisbane? Well, it can vary. Factors like the severity of the crack and the type of resin used can influence the total cost.

Here are some approximate price brackets to give you a general idea:

  • Minor repairs: $300 – $1,000+.
  • Moderate repairs: $1,000 – $2,500+.
  • Extensive repairs: $2,500 – $5,000+.

But don’t worry. At Raise + Relevel, you are covered with a free consultation. We’ll assess your situation and give you a detailed quote without strings attached.

How can Raise + Relevel help?

We bring our expertise in Brisbane concrete repair to every job we take on. Whether you’re dealing with balcony repair, joint sealing, or pressure grouting, we’re ready to step in. We’re fully licensed and insured, and our team is packed with experienced and qualified engineers and technicians.

Communication is key for us. We’ll keep you informed at every stage of the process. And, of course, we take health and safety very seriously, always ensuring a safe working environment.

Here are a few reasons to choose us for your crack injection in Brisbane:

  • Fully licensed and insured: We take your peace of mind seriously. That’s why we’re fully licensed and insured.
  • Experienced team: Our team is well-versed in all aspects of Brisbane concrete repair, from concrete structural work to protective coatings.
  • Free consultation: We offer a free consultation to assess your needs and provide a detailed quote.
  • Open communication: We keep you updated throughout the entire process, from the initial consultation to the completion of the project.

Raise + Relevel is here to help no matter your concrete repair needs. We proudly serve Brisbane Gold Coast, Gold Coast Sunshine Coast, and South East Queensland with our top-quality concrete repair services.

Ready to start your concrete repair journey? Use our contact form to schedule your free consultation. Let’s work together to restore the beauty and durability of your concrete structures. Don’t let damaged concrete be a trip hazard or bring down the aesthetic appeal of your property.

choose us?


We give you better value, including 10% price beat.


Everyone you deal with is a specialist structural releveller.


We provide a fully guaranteed warranty on workmanship and materials.

Questions you should ask

Your home is everything to you and your family, so before going ahead with any subsidence repairs, we’ve put together a list of questions our customers should ask:

What actual experience in resin injection does the person quoting my job have?

We offer advice, not sales, so we don’t employ salespeople. The person who quotes your job does your job, and has been relevelling homes like yours for over 15 years.

How many homes have you raised and relevelled?

Our specialists have raised over 7,000 homes in total.

What guarantee do I get that the solution is permanent?

If the problem returns, we return. We provide a fully guaranteed warranty on materials and workmanship.

How do I know I’m getting the best value?

At R+R, we have no call centres, no sales people and minimal overheads, all of which enables us to provide the best value for our customers.

Why should I choose you?

R+R will deliver you better value, through real experience, with guaranteed results.