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How To Fix Water Leaking Into Basements After Heavy Rain | CONSPAR

There are a few steps you can take to fix water leaking into your basement after heavy rain using high-performance products relevant to Perth:

  1. Identify the source of the water leak: The first step is to identify where the water is entering your basement. Common sources include cracks in the foundation, faulty drainage systems, or poorly sealed windows and doors.

  2. Clean and prepare the surface: Once you have identified the source of the leak, clean the surface to remove any dirt, debris, or loose material that may interfere with the repair process. You may need to use a pressure washer, wire brush, or scraper to remove any stubborn debris.

  3. Apply a waterproofing product: There are several high-performance waterproofing products available that are suitable for Perth's climate, such as epoxy or polyurethane-based sealers. These products can be applied to the surface using a brush, roller, or spray. Be sure to follow the manufacturer's instructions carefully and allow the product to dry completely before applying a second coat.

  4. Repair any cracks or damage: If the source of the leak is a crack or other damage in the foundation or walls, you will need to repair this before applying the waterproofing product. Use a concrete patching compound or hydraulic cement to fill the crack or damage, then allow it to dry completely before applying the waterproofing product.

  5. Install proper drainage: In some cases, the source of the leak may be poor drainage around the foundation. Installing a French drain or sump pump can help divert water away from the foundation and prevent future leaks.

It is important to note that waterproofing products and repair techniques can vary depending on the specific situation and severity of the leak. It may be best to consult with a professional waterproofing contractor who can assess your situation and recommend the best course of action for your specific needs.


Conspar can assist you with the above steps and we have a proven track record for delivering long-lasting - and documented - results. Our family company has been solving identical building issues in Perth since 1969. Get started by contacting us here.

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