Inspect basements, bathrooms, roofs, balconies, and external walls for signs of leaks, cracks, or dampness.

Fill cracks, patch holes, and smooth uneven surfaces to create a stable base before applying waterproofing materials.

Remove dust, grease, and loose material. Ensure surfaces are dry to allow waterproofing products to adhere properly.

Use liquid or sheet membranes to create a continuous barrier across all wet zones, especially around showers and tubs.

Reinforce junctions with waterproof tape or fabric before applying the final coating to prevent leaks at weak points.

Ensure drains, pipes, and fixtures are fully sealed with collars or gaskets to stop water from seeping through gaps.

Coat exterior walls with elastomeric paints or sealants that resist water penetration while allowing walls to breathe.

Check roof flashings, joints, and sealants for deterioration. Replace or reseal where needed to maintain protection.

Clean gutters, downpipes, and scuppers regularly to ensure water flows away from the house efficiently.

Check for cracks or damp patches. Apply waterproof membranes or coatings on the exterior foundation walls as needed.

Confirm that French drains, sump pumps, and perimeter drainage systems are in place and working correctly.

Apply waterproof barriers around slab perimeters to prevent ground moisture from rising into the structure.

Check that balcony and terrace surfaces slope away from the building to prevent pooling water.

Use flexible waterproof membranes under tiles or paving to provide long-term resistance against water penetration.

Ensure all expansion and control joints are sealed with elastic waterproof sealants to allow for movement without leakage.