Our inflatable devices are custom-made to fit your door’s frame and create a high-pressure, sealed barrier in any framed opening, preventing water from entering.

Yes. The pressure that holds the flowstop in place is against the frame, the side of the opening, not the door or window. Flowstop won’t put any pressure or resistance or inflict any damage to your door or window.

Yes, our technology is designed to resist pulling and pushing forces.

Yes! We tested our flowstop against heavy logs, bricks, and scissors. Our double PVC panels are incredibly resistant.

Yes, Flowstop is an inflatable device; therefore, the shape of the devices will adapt to the unperfect environment.

Yes, Flowstop will hold a strong seal on a slope as well.

We are offering a demo program. Contact us to get your demo device sent to your house.

Your Flowstop devices can be inflated minutes or months before a risk of flooding is announced. We designed our high-quality valves to keep the pressure up to 2 months.

Flowstops are inflated at 13.5 PSI pressure. At such pressure, even in extreme temperature differences, the pressure is such that there is no alteration of the shape or resistance. We tested Flowstops at 167f without any problem.

Measure the size of the opening you want to protect (not the size of the door/window) and order a flow stop of that width. Please visit our tutorial for more information.

Flowstops are custom-made to fit your opening. We can custom-make any size or shape. Our standards are rectangular shapes with 31.5″ in height, 6″ – 7.5″ in depth, and 40″- 177″ in width. We can also custom-make round or square devices.

No, there is no additional cost or need for any installation tool. We include a pump to inflate your Flowstop with your order. You only need a measuring tape to measure the width of your openings before ordering to ensure we create the perfect flowstop for your doors and windows.

Standard sizes that we carry in stock ship within 3 days; depending on the size you need, custom sizes can take up to 3 weeks to produce.

Yes! Flowstop guarantees over a hundred uses.