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Wall Waterproofing: A Wise Investment for Your Home

As a homeowner, you appreciate the importance of safeguarding your investment. With the arrival of the monsoon season, one heavy downpour of rain is enough for water and moisture to seep through your walls. Waterproofing your wall is a wise investment that can significantly contribute to the longevity and structural integrity of your property. 

What is Wall Waterproofing?

Waterproofing the wall is a process that involves creating a barrier that prevents water infiltration through your walls. It is particularly vital for areas that are susceptible to moisture, such as exterior walls, and areas exposed to heavy rainfall. 

Which Parts of Your Home Require Wall Waterproofing?

Several areas in your home may benefit from waterproofing to prevent moisture-related issues and protect the structural integrity of your property.

Exterior Walls

Exterior walls are exposed to the elements and can deteriorate over time. Waterproofing the exterior walls helps shield them from rain, humidity, and other weather-related threats, extending their lifespan.


Bathrooms are prone to high humidity levels, which can lead to mold growth and damage to the walls. Waterproofing bathroom walls ensures that moisture is kept at bay, preventing costly repairs.


Garages can be exposed to moisture from rain and snow, which can lead to damage and rust. Waterproofing in garages helps preserve the integrity of the space and protects your vehicles and belongings.

Utility Rooms

Rooms housing water heaters, washing machines, and other appliances are susceptible to leaks and water damage. Waterproofing these walls ensures the safety of your appliances and prevents costly repairs.


Your home’s foundation is its structural backbone. Waterproofing the foundation walls prevents water from infiltrating and compromising its stability.

Retaining Walls

If your property features retaining walls, waterproofing them is essential to prevent water from eroding the soil behind them and compromising their stability.

Proven Roof Waterproofing Solutions

Polyalk WP – Polymeric waterproofing coating 

POLYWALK WP is a versatile waterproofing solution, compatible with concrete, resistant to carbonation, and suitable for moist conditions. It adheres well, making it ideal for exterior walls, water tanks, and as a base coat.


SUNPROOF PU1K: Waterproofing and sealing membrane

SUNPROOF PU1K is the go-to choice for waterproofing needs. Its strong, flexible waterproofing membrane eliminates the need for extra reinforcement, making it a hassle-free option. It won’t stain tiles or marble, preserving your surface aesthetics. It is UV-resistant and suitable for damp surfaces. SUNPROOF PU1K is easy to apply with a brush or roller, non-toxic, and environmentally friendly, ensuring safety and convenience. 

Polyalk WP+: Waterproofing coating of crystalline type

POLYWALK WP+ is a versatile waterproofing solution that protects concrete surfaces effectively. It’s strong and sticks well to keep your concrete safe. It also prevents concrete from getting damaged. You can use it outside, especially during rainy seasons. It’s easy to apply on things like walls and floors, and water tanks. 

What is the Process of Applying Waterproof Wall Paint?

Step 1: Clean cracks in the wall with a water jet or water spray.

Step 2: Fill cracks with POLYFILL AR paste. It is a ready-to-use crack filler putty so there is no need to open the cracks. Simply apply over the cracks and the putty gets absorbed within the cracks in a few hours. In case of deeper cracks, two applications may be needed.

Step 3: Mix 1 kg POLYALK WP waterproofing liquid with 1 kg of grey or white cement and apply a primer coat over the entire external wall. Allow it to cure for 24 hours.

Step 4: Apply two coats of 100% Acrylic Elastomeric Waterproof Paint SUNACE on the primed area at an interval of 24 hours between coats. Allow the final coat to cure for 24 hours.

Investing in high-quality waterproofing solutions, such as those offered by Sunanda Global, is a wise decision for homeowners looking to fortify their homes against the adverse effects of moisture. In essence, wall waterproofing is not just a smart investment, it’s a protective shield that helps secure your property’s long-term health and value.