How Does a French Drain System Work?
A dry basement or crawl space isn’t just a luxury—it’s a necessity. If you’ve noticed water creeping in where it doesn’t belong, it’s time to consider a proven solution that doesn’t fight water—but works with it. Our team at DESKA, specializes in interior waterproofing systems like French drains that are engineered to keep Alexandria homes dry and protected year-round.
What Is a French Drain System?
A French drain system—also known as an interior drainage system—is a comprehensive waterproofing method designed to intercept and redirect groundwater before it causes structural damage. It’s not just a pipe in the ground—it’s a carefully designed network that includes:
Perforated drain tile piping
Gravel or aggregate to filter out debris
A sump basin and sump pump to actively move water out
Optional battery backup systems for power-outage peace of mind
Do You Need A Basement Waterproofing System
Without a professionally installed drainage system, even light rainfall or poor grading can lead to:
Cracks in the foundation
Mold and mildew outbreaks
Damaged belongings stored in your basement
Increased humidity and poor air quality in your home
How Our French Drain Systems Work
1. Drain Tile Collects the Water
Rainwater or rising groundwater naturally flows toward your foundation. Our team installs a perforated drain tile system that sits along the base of the interior foundation wall. This pipe collects excess water while preventing soil or debris from clogging the system.
2. Water Flows to the Sump Basin
The collected water is then funneled to a sump basin—a sealed pit located below the basement floor. This basin acts as a central collection point for the system.
3. Sump Pump Activates Automatically
When water in the basin reaches a specific level, the sump pump turns on automatically, pumping the water safely away from your home to a designated discharge point—keeping your foundation and living space dry.
4. Battery Backup for Uninterrupted Protection
During heavy storms, power outages are common. Our battery backup sump pump ensures your system continues working even if the main power fails—giving you 24/7 protection, rain or shine.
Should You Waterproof or Just Use a Dehumidifier?
While dehumidifiers can help manage airborne moisture, they don’t address the source of water intrusion. If you’re experiencing wet floors, foundation cracks, or puddling after rain, you’re facing a waterproofing issue—not just a humidity problem.While dehumidifiers can help manage airborne moisture, they don’t address the source of water intrusion. If you’re experiencing wet floors, foundation cracks, or puddling after rain, you’re facing a waterproofing issue—not just a humidity problem.
Choose Waterproofing When:
You see water seeping in after storms
Your basement smells musty or feels damp
You plan to finish or renovate your basement
Trust DESKA to Keep Your Basement or Crawl Space Dry
At DESKA, we’ve helped homeowners across Alexandria, VA and the surrounding areas protect their homes from water damage with reliable, long-lasting waterproofing solutions. If you’re dealing with a damp basement or crawl space, don’t wait—take action now. Call our team at 703-665-1456 or click the button below to schedule a free estimate.