What is injection leak repair?

Injection leak repair is a method used to eliminate water leaks by injecting specialised materials into cracks and voids in concrete or masonry. This process seals the leak at its source rather than covering the surface.

What material do you use for injection leak repair?

We use polyurethane resin injection, which expands and cures inside concrete and masonry cracks. This material is highly effective for sealing active leaks and preventing further water ingress.

What types of leaks can be repaired with polyurethane injection?

Polyurethane injection is commonly used for concrete crack leaks, basement leaks, balcony leaks, block and brick masonry leaks, and lift shaft leaks where water enters through cracks or joints.

Is injection leak repair a permanent solution?

When correctly applied, injection leak repair provides a long-lasting solution by sealing the leak path within the concrete or masonry. All works are backed by a 25-year warranty.

Do you offer waterproofing or structural repair services?

No. We specialise exclusively in concrete and masonry crack repair and injection leak repair to eliminate water leaks. We do not offer general waterproofing or structural repair services.

Which areas do you service?

We provide concrete and masonry leak repair services throughout Sydney, NSW, for residential, commercial, and strata properties.

🎁 Holiday Season Special Offer

Stop Water Leaks Permanently This Holiday Season

Sydney’s trusted Injection Leak Repair specialists. We eliminate water leaks by repairing cracks and voids in concrete and masonry structures using advanced Polyurethane Resin Injection systems, all backed by a 25-year warranty.

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Reliable Concrete Leak Repair Services in Sydney for Lasting Leak Protection

Do you suffer with leaking structural walls, ceilings, floors, basements, and balconies?
Are leaks costing you time and money?
Have you tried many so-called solutions to repair but with minimal success?
If the answer is “YES,” take action now!

Permanent Injection Leak Repair Using Polyurethane Resin

At DS Projects, we specialise in injection leak repair, a proven method that stops leaks at their source. Our process involves a 3–7 step diagnostic and repair system, where polyurethane resin is injected directly into cracks and voids within concrete and masonry.

Once injected, the resin expands and cures, sealing water paths and restoring the integrity of the affected area. This method is highly effective for active leaks and is ideal for Sydney’s changing climate conditions.

All works are completed by experienced technicians and protected with a 25-year warranty.