Basement Waterproofing

Sealing the Depths. Protecting from Within.

Basements are particularly vulnerable to hydrostatic pressure, groundwater seepage, and capillary action, which can lead to dampness, mold growth, structural degradation, and foul odors. At Ethios Group, we specialize in advanced basement waterproofing solutions that provide complete protection—both externally and internally—to ensure a safe, dry, and healthy underground space.

Our Basement Waterproofing Systems Include

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External Waterproofing - Applied on the outer face of basement walls and foundations, we use HDPE membranes, bituminous sheet membranes, or crystalline coatings that block moisture ingress from surrounding soil. These systems are often coupled with drainage boards and protection layers for added durability.
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Internal Waterproofing (Negative Side Protection) - In cases where external access isn’t possible, we use cementitious coatings, crystalline admixtures, and injection grouting on the interior surface to stop water from penetrating inside. This method is ideal for old buildings and retrofit projects.
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Injection Grouting for Active Leaks - PU or acrylic grouting systems are used to seal live water leakages through cracks, joints, and honeycombed concrete. This method quickly and effectively blocks moisture pathways.
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Basement Slab Protection - Application of liquid membranes or pre-applied HDPE sheets beneath raft slabs to prevent upward water migration, even under high pressure.

Typical Applications

Basement Walls (Internal & External) – Prevents lateral water seepage through RCC walls.

Basement Slabs & Rafts – Protects against upward water pressure from the ground.

Lift Pits – Ensures dryness and protects mechanical systems from water damage.

Underground Car Parks – Prevents dampness and leakage in sub-level structures.

Basement Utility Rooms – Maintains dry conditions for electrical and storage areas.

Expansion Joints in Basements – Seals critical joints vulnerable to water ingress.

Key Benefits

Long-lasting resistance to seepage, capillary rise, and dampness.

Protection against mold, bacteria, and structural corrosion.

Compatibility with RCC, blockwork, and precast elements.

Customized systems based on water table levels and structural conditions.

Enhances the longevity and usability of basements for storage, parking, or occupancy.

Whether you’re waterproofing during construction or remediating a leakage-prone basement, Ethios Group offers end-to-end, site-specific solutions that ensure reliable and sustainable moisture control.

Basement Waterproofing

Our Basement Waterproofing Systems Include

Typical Applications

Key Benefits

Ethios Group protects what lies beneath—ensuring dry, durable, and safe basements that stand the test of time.

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