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Solving Crawl Space Problems Since 1996
Three decades of engineering specialized products that protect homes from moisture, flooding, and structural damage—because what happens beneath your home affects everything above it.
From Problem to Solution
Crawl Space Door Systems was founded in 1996 to solve a problem the industry ignored: crawl space products that actually last. While standard vents rusted and doors rotted, we engineered durable solutions for the demanding conditions beneath homes—starting with our first patented door and expanding into complete moisture control, ventilation, and flood protection systems.
What Makes Us Different
Who We Serve
Waterproofing and foundation specialists need reliable products protecting reputations. We provide materials performing as specified, designs working in real conditions, and technical support for complex projects.
Builders and property managers rely on consistent quality across properties, code-compliant solutions, and long-term durability reducing maintenance costs.
DIY-capable owners benefit from clear selection guidance, educational resources explaining the "why," and quality materials designed for lasting results.
Quality You Can Verify
We specify materials for decades of service—UV-stabilized plastics, corrosion-resistant metals, commercial-grade polymers. Factory testing validates published specifications. Multi-year warranties back our confidence. Where required, products meet ICC-ES standards, NFIP flood requirements, and building codes for foundation ventilation.
Why Crawl Spaces Matter
Most people ignore their crawl space until moisture creates mold, structural damage threatens joists, or flood insurance forces action. By then, damage is done and repairs are expensive.
We believe in proactive protection. The right products, properly installed, prevent costly problems—whether encapsulation stopping moisture, flood vents protecting foundations while reducing insurance costs, or drainage solutions handling groundwater. Up to 50% of your home's air comes from your crawl space. What happens below matters above.
Our Commitment
Building on three decades of experience, we're investing in product development addressing emerging needs, expanded technical resources helping informed decisions, responsive customer service turning questions into successful projects, and industry leadership maintaining certifications and compliance standards.
