Your First Line of
Defense Against
Flooding
FlowStop flood barriers are designed to prevent water from entering your property’s openings.
Discover the latest breakthrough in flood protection—FlowStop is an inflatable barrier that provides rapid defense against flooding.
Each FlowStop barrier is custom-built to fit doors, garages, or windows, and can be manufactured to suit nearly any length and height.

Simply inflate your FlowStop…
...over 10,000 FlowStops
protecting houses:

How to Get your FlowStop
01
ONLINE ASSESSMENT
Contact us to schedule a convenient online compatibility assessment with our team. We’ll review all your available options, assess compatibility with your property, and provide a detailed cost estimate along with personalized recommendations.
02
ON-SITE VISIT
If you choose to proceed, we’ll arrange a complimentary in-person visit from one of our local agents. Our local experts will take precise measurements and offer a customized recommendation to ensure your home receives the best possible protection.
03
FINAL QUOTE & DELIVERY
After the assessment, you will receive a final quote. Once you approve it, we will send an invoice. Your FlowStop system will be delivered within 6 to 13 weeks, based on volume demand.
Don't wait until the last minute.
Why FlowStop?
Stops flooding
Custom-made
FlowStop barriers fit most openings. They are custom-made to match the width of your frame and can be manufactured to any height you need.

FlowStop is lightweight and easy to transport. Setting it up is simple: just place the device in your opening and inflate it.
Easy to set up
.png)
No tools needed
In most cases, no extra tools or construction are needed. Simply place your FlowStop in the opening and inflate.
.png)
Easy to store
When deflated, FlowStop is lightweight and compact. You can hang it by the handle or roll it up and store it in a box.
.png)
FlowStop is designed to block water at your property’s openings—even in severe weather conditions. Constructed from durable PVC material, it stands strong against powerful winds, surging waves, debris, and more.
Protecting properties worldwide

Hot news
FlowStop partners with certified flood protection experts. To get started, please schedule an online assessment. Afterward, we’ll connect you with a local agent for an in-person demonstration.
You should order a FlowStop that matches the exact size of your opening. Measure the width of the opening (in inches) that needs protection—not the size of the door or window itself—before placing your order. For more information, please visit our tutorials.
Most FlowStop devices are custom-made to fit your openings. We can create any size or shape to meet your needs.
Our standard sizes are rectangular, with a height of 31.5 inches, a depth between 6 and 7.5 inches, and a width ranging from 30 to 177 inches. We can also custom-make round or square devices.
We charge $0.60 per square inch.To calculate the cost:
Multiply the width of your opening by the height to get the total square inches.
Then multiply the total square inches by $0.60.
For example, a FlowStop that is 36 inches wide with the standard height of 31.5 inches costs:36 × 31.5 × 0.60 = $680.
Yes! If you don’t have a framed opening, please contact us. We recommend using poles mounted to your wall to help secure the FlowStop in place.
No, there is no need for any additional installation tools or property modifications. Your order includes a pump to inflate your FlowStop.
Standard sizes are typically kept in our inventory and will ship within 3 business days. Custom sizes may take 6 to 9 weeks to produce and will ship immediately after production.






































