Exterior Waterproofing in Cape Town

Cape Town, known for its stunning landscapes and beautiful coastline, is also prone to heavy rainfall. As a result, waterproofing your property should be a top priority. Exterior waterproofing is an effective solution to prevent water damage and ensure the longevity of your home or business premises. In this article, we will explore the various exterior waterproofing services available in Cape Town and why they are essential for protecting your property.

The Importance of Exterior Waterproofing

Exterior waterproofing is a proactive measure taken to prevent water intrusion from the outside of your property. It involves applying waterproofing materials and techniques to the exterior surface, protecting it from rainwater, humidity, and potential flooding. Here are some key reasons why exterior waterproofing is crucial:

  1. Preventing Structural Damage: Continuous exposure to moisture can weaken the structural integrity of your property over time. Exterior waterproofing creates a barrier that prevents water from seeping into walls and foundations, reducing the risk of cracks and structural damage.

  2. Protecting Interior Spaces: Untreated water leaks can lead to mold growth, peeling paint, damaged drywall, and other issues within your property. Exterior waterproofing provides a proactive line of defense, preventing water from reaching the interior spaces and protecting your valuable possessions.

  3. Enhancing Property Value: Adequate waterproofing is an investment that can significantly increase the value of your property. Potential buyers are more likely to be attracted to properties that have undergone professional exterior waterproofing, knowing that their investment is protected from water-related problems.

Exterior Waterproofing Services in Cape Town

Now, let’s explore the various exterior waterproofing services available in Cape Town:

1. Waterproof Coatings

Waterproof coatings are an excellent choice to protect your property from moisture damage. These coatings are usually made of a blend of polymers and cementitious materials that create a seamless, durable membrane over the exterior surface. Common types of coatings include:

  • Acrylic Coatings: Affordable and versatile, acrylic coatings provide excellent adhesion, weather resistance, and UV protection.

  • Polyurethane Coatings: Known for their high elasticity and flexibility, polyurethane coatings can withstand extreme temperature variations and offer superior water resistance.

  • Silicate Coatings: Silicate-based coatings create a breathable barrier that allows vapor transmission while preventing water penetration, making them suitable for buildings with older masonry structures.

2. Waterproof Membranes

Waterproof membranes act as a protective layer against water intrusion. These membranes are typically made of bitumen, rubber, or polymeric materials and are applied in sheet form. Here are some commonly used waterproof membranes:

  • Bituminous Membranes: Bituminous membranes are made of asphalt or modified bitumen. They are durable and offer excellent waterproofing properties, making them suitable for flat and sloped roofs.

  • EPDM Membranes: Ethylene Propylene Diene Monomer (EPDM) membranes provide excellent resistance against water, UV rays, and ozone. They are widely used for waterproofing both roofs and foundations.

  • PVC Membranes: Polyvinyl Chloride (PVC) membranes are highly durable, resistant to chemicals and microorganisms, and suitable for a wide range of applications, including roofs, balconies, and terraces.

3. French Drains

French drains, also known as perimeter drains, are an effective solution for managing excessive water around your property. These drains consist of a perforated pipe installed underground, surrounded by gravel or crushed stone. They redirect water away from your property, preventing water buildup near the foundation. French drains can be installed along the perimeter of your property, as well as behind retaining walls or at the bottom of slopes.

4. Landscaping and Grading

Improper landscaping and grading can contribute to water accumulation and potential damage to your property. Effective grading ensures that water flows away from the foundation, preventing it from seeping into the structure. Landscaping elements such as swales, berms, and proper planting can also help redirect water away from vulnerable areas and promote proper drainage.


Here are some frequently asked questions about exterior waterproofing services in Cape Town:

Q: How much does exterior waterproofing cost in Cape Town?
A: The cost of exterior waterproofing services can vary depending on factors such as the size of the property, the extent of the work required, and the chosen waterproofing methods. It is best to contact professional waterproofing contractors in Cape Town for accurate cost estimates.

Q: How long does exterior waterproofing last?
A: The lifespan of exterior waterproofing can vary depending on factors such as the quality of materials used, the climate of the area, and the maintenance carried out. On average, exterior waterproofing can last anywhere from 10 to 20 years.

Q: Can I waterproof my property myself?
A: While some minor waterproofing tasks can be done by homeowners, it is always recommended to hire a professional waterproofing contractor for more extensive projects. They have the necessary experience, expertise, and tools to ensure a high-quality and long-lasting waterproofing solution.


Exterior waterproofing is an essential investment for protecting your property from water damage in Cape Town. Whether you choose waterproof coatings, membranes, French drains, or a combination of these methods, ensuring your property is adequately protected is crucial. By taking proactive measures, you can enjoy the peace of mind that comes with knowing your property is shielded from potential water-related issues, enhancing its longevity and value.

Holmes Waterproofing

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