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How to Waterproof Your Basement


Once your basement walls are clean, all holes and cracks have been filled in, and windows caulked, it is time to waterproof them. Home repair stores offer silicate concrete sealants that provide excellent protection from surface dampness and mold growth. Discover the best info about foundation repair.

However, they will only prevent water infiltration caused by hydrostatic pressure and capillary action with additional changes, such as installing a drainage system and French drain around your foundation.

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Waterproofing your basement is an essential preventative measure that both protects the value of the house and ensures occupant health. Watertighting helps eliminate mildew odors and protect against water damage; professional waterproofing companies will develop comprehensive plans with interior and exterior solutions for effective waterproofing solutions.

Interior waterproofing involves effectively sealing cracks in basement walls and around doors and windows to prevent moisture from seeping into your home. Fissures in walls are one of the main points where water enters homes, so sealing them correctly could save money over time.

Interior sealants alone may not be sufficient to stop major leaks from forming in walls and floors or address the root cause of excessive moisture build-up; for this reason, many foundation contractors employ various waterproofing strategies in tandem to address their customers’ issues.

At first, contractors will inspect your basement for signs of seepage and identify its source. A damp basement typically displays easy-to-spot signs of water damage, such as puddles or dark staining on walls; if this water damage causes health problems or significant financial concerns, you must call in professional waterproofing services immediately.


Step one of waterproofing your basement should involve making sure water drains away from the home rather than becoming trapped against its foundation. In such an instance, installing a drainage system (often known as a French drain system) in your yard to lower the water table would be effective in stopping basement flooding and preventing its recurrence.

Another way to stop water seepage in basement walls is to seal any openings in them with epoxy or urethane injections. For concrete foundations poured using LastiSeal brick and concrete sealer, an industrial-grade polymer-based product such as LastiSeal brick and concrete sealer can be applied over 250 sq ft (100-150 sq ft for blocks) per gallon.

Your waterproofing method should take into account both the type and level of soil surrounding the foundation as well as local water table levels. Pump out any standing water before using fans and dehumidifiers to dry the area prior to applying any products.


Waterproof paint for basement walls helps stop any moisture that seeps through cracks from seeping into your house through cracks in the walls and seeping into the floor, saving time and money in terms of mold removal costs. Quality waterproof paint also makes a significant impact in resisting mold growth, eliminating costly mold removal services.

Waterproof basement paints are thicker than interior drywall and contain additives that fill in the pores of concrete foundation walls to form a protective barrier, blocking moisture vapor from passing through and into your home, leading to humidity, mold growth, rot, and musty smells.

These waterproofing paints feature high PSI ratings – this means they can withstand 8-12 pounds per square inch (psi), enough to seal most leaks and prevent structural damage. You can apply these with either a spray applicator or roller and topcoat them later for an aesthetically pleasing result.

Before applying waterproof paint to your basement walls, ensure the surface is clean and dry. Use painter’s tape along the edges of each wall for smooth coverage, and eliminate any loose debris or dirt from its surfaces.

To test the efficacy of your waterproof paint, apply a tiny droplet of water directly onto the wall. If it beads up immediately after being applied, this is evidence that it’s functioning effectively.


Epoxy flooring coatings are highly resilient floor coatings designed for concrete and other hard surfaces, offering easy cleanup while being resistant to dirt, dust, stains, and slipperiness. Epoxy floors also make great workspace or entertainment areas in basements that double as workshops or home entertainment areas; however, they might not be best-suited for damp environments that experience flooding or leakage; an epoxy floor could crack, blister, or peel over time due to frequent flooding or leakage issues.

Epoxy can be applied to dry basement floors to create a waterproof barrier that shields concrete against water damage and mold growth. Prior to applying epoxy, any existing paint must first be removed to facilitate its proper adhesion; cleaning should also be performed thoroughly so as to eliminate grease build-up or efflorescence on the floor surface.

An epoxy floor in your basement is suitable for covering with carpet, hardwood, or any other flooring material; however, before any flooring materials are laid, it’s essential first to install a waterproof barrier as concrete absorbs moisture which, if left uncovered, can lead to mold, mildew, fungus and leaks which create mold colonies and mildew colonies – this waterproof epoxy floor prevents this wicking and offers protection from leaks, floods and puddles.

Basement waterproofing techniques have advanced significantly, offering comprehensive protection for homes. By combining foundation repair and floor coating into one integrated strategy, homeowners can safeguard against water damage while improving the aesthetics of their underground retreat.

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