Door dams provide an essential layer of flood defense, forming a key part of a well-rounded flood protection plan.

While not foolproof, door dams greatly increase the chances of keeping floodwaters out, especially when used in combination with other protective measures.

They can block water up to three feet high, offering substantial protection during severe weather.

Sandbags, though popular, have clear limitations—they can become saturated over time, allowing water to seep through or find gaps, reducing their effectiveness.

This slow water intrusion can eventually compromise your home’s interior, making sandbags a less reliable long-term solution.

Door dams are easy to build and install, requiring no special tools or advanced skills.

Whether you’re a home improvement professional or a DIYer, adding door dams to your flood preparedness plan is a practical step toward protecting your property.