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How to Prepare Your Basement for Wet Weather


As seasons change and wet weather approaches, from heavy spring rains to melting winter snow, your home’s foundation and basement face their greatest challenge. Water can be relentless and if your basement is not properly prepared, even small vulnerabilities can quickly escalate into major leaks, high humidity and costly damage to your foundation and belongings.

At Above Board we know that prevention is the most affordable remedy. We specialize in long-term solutions like basement damp proofing, but we also encourage homeowners to practice routine seasonal care to minimize risk. Taking proactive steps now can save you from a major floor or a serious mold remediation job later.

Wet weather drastically increases the amount of moisture saturating the soil around your home’s foundation. As this water collects it creates hydrostatic pressure. This is the force of water pushing against your basement walls and floor. If your foundation has any unsealed cracks, gaps, or weak points, this pressure will relentlessly push water directly into your basement. 

Even if you don’t experience a sudden leak, consistent wet weather increases the ambient humidity, creating the perfect conditions for mold, mildew and decay. This is why seasonal preparation is non-negotiable for homeowners. 

The Essential Seasonal Basement Care Checklist

Before the peak rainy season hits, walk around your home’s exterior and basement interior to perform these critical maintenance checks:

  • Clean and clear gutters. Ensure all gutters and downspouts are free of leaves, debris and clogs. Clogged gutters overflow, dumping hundreds of gallons of water right next to your foundation instead of diverting it safely away.
  • Examine downspout extensions. Verify that your downspouts extend at least six feet away from the foundation. If they end too close to the home, they are simply feeding water directly into the soil surrounding your basement walls.
  • Check exterior grading. The ground surrounding your home should always slope away from the foundation. If the soil slopes towards your house you are creating a collection pool that forces water downward towards your basement. Adding compacted soil to reverse the slope can be a quick and easy fix.
  • Inspect your walls for cracks. Look carefully at the interior and exterior of your basement walls for any hairline cracks or signs of water seepage. Small cracks are easy to seal, but if ignored they will widen and become major entry points for water.

What To Do When Seasonal Care Isn’t Enough 

Routine maintenance significantly reduces the risk of water damage, but it can’t fix inherent structural problems or severe hydrostatic pressure. If you continue to see leaks, consistently high humidity, or evidence of mold despite your best efforts, it is time for a professional solution.

Basement damp proofing is the professional defense against water intrusion. This often involves installing an internal perimeter drainage system and a high-capacity sump pump to manage water before it reaches your living space. This process permanently alleviates hydrostatic pressure and ensures your basement stays dry year-round.

If your basement has been damp or suffered a prior leak you may already have mold growth. Mold poses a serious threat to air quality and requires specialized mold remediation to safely remove the colony and treat the affected surfaces, ensuring the health of your family and in the integrity of your home.

Don’t wait until a major storm turns your basement into a swimming pool. A proactive investment in professional basement care is an investment in your home’s structure and your family’s health.

Above Board provides expert basement damp proofing and mold remediation services. Contact us today for a full basement assessment to ensure your home is fully prepared for the wet weather ahead.