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Basement Waterproofing4 min readOctober 17, 2024

Waterproofing For Basement Walls

What is the best waterproofing method for basement walls? Here's how to find the core issue, improve drainage, and keep ventilation flowing.

Waterproofing For Basement Walls
Raf Volkov, founder of We Fix Cracks
Written & reviewed by
Raf Volkov
Founder & field supervisor · 60+ industry trainings & certifications

What is the best waterproofing method for basement walls? Seepage reaching the basement is not a good sign. Usually there are two possible sources, seepage comes from the roof above or from the basement itself. The alarming fact is that seepage can spread mold and eventually become difficult to trace back to its source. The following steps can devise a powerful method to track down the issue and fix it at its core.

Find the Core Issue

If you just started noticing wet patches or mold on your basement wall, the problem probably began long ago and is just now showing up. One of the most common structural issues that facilitates moisture is cracks in the wall. Water and moisture use these cracks (or the porosity of the material) to travel. A crack-free wall is the most effective defense against unusual moisture, because the porosity in the cracks is higher than the outer surface of the wall.

Improve the Drainage System

By improving drainage, you save your basement walls from damage, but the core issue might still be at large. Keep your gutters clean and check the underground piping for possible damages.

Make Sure Ventilated Air Can Reach Your Basement

Basements are cooler than the rest of the building. Sunlight doesn't reach that deep, and ventilation is often poor. To avoid moisture gathering in your walls, make sure ventilated air can reach your basement.

Don't forget that a professional structural expert can be hired for help. The initial moisture problem can often be tackled with personal effort, but for complex issues, always talk to a professional.

Raf Volkov, founder of We Fix Cracks, at the World of Concrete training conference
About the author

Raf Volkov

Founder & field supervisor, We Fix Cracks · CT & NY

Raf has personally inspected and supervised more than 1,300 foundation repairs across Fairfield County, CT and Westchester County, NY since 2002. He attends World of Concrete and manufacturer trainings every year, currently holds 60+ active industry certifications, and works with a scientific background spanning microbiology, toxicology, and structural engineering — applied to every wall, slab, and footing we touch.

60+ certifications1,300+ repairsSince 2002
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