Flood Traps quick DIY flood door kit details an...

Floodlock Flood Traps help you stop floods to your home

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Inc. VAT. Order 3 or more for FREE delivery to the UK or EU. 

All orders and delivery times are subject to stock availability and postal services.

UK delivery is typically 1-2 weeks and costs £3.35 per item, free for 3 or more packs.

Western Europe delivery is typically 2-4 weeks and costs £3.35 per item, free for 3 or more packs.

Eastern Europe delivery is typically 4-6 weeks and costs 3.35 GBP (4.40 USD) per item., free for 3 or more packs..

Delivery to the USA is 10.40 GBP (13.23 USD) for 1 to 36 pieces per order & takes 2-4 weeks from dispatch. 

N.B. 20% VAT (Tax) shown on the price will automatically be removed if the purchase is being made outside the EU, e.g. from the USA where no such tax applies.


Please include your telephone number with the address for the courier to avoid delay. 

To order Flood Traps DIY Flood Door and Window Protection, please click here.

Image of stagnant water, not flowing through a door in an independent test facility and video explaining how to use Flood Traps.

Flood Trap holding 30cm deep flood water outdoors in test lab



Flood Traps - DIY Flood Door Kits - to better seal your robust outside doors against flood water pressure.

Place one length in the doorframe, at the bottom. Use the sticky tabs to help you position and hold the strips up the sides of the door so the three lengths in the pack along the bottom and up the sides of your door (or window) frame. Then shut that door. You can use more to run them all the way across the top of a door to boost the seal on a basement door for example. Rapidly swelling to create a waterproof gel when wet a single pack used on a typical UK size door will boost protection against 0.5m (20") deep floodwater, plus the height of any door steps, so typically 2ft / 61cms. 

For use against saline (sea or salt) water floods just fold each strip in half parallel to the long side and wet half the folded width of the strips with tap water first, you can see how in the video, then trap the dry part between the door and the frame. 

When and how to reduce floods with Flood Traps

When you receive a flood warning from a local authority or Government body like the UKs Environment Agency or you see weather reports so expect floods due to heavy rain, rising river levels or high tide with strong winds or storms or hurricanes. 

Flood Traps can do the job of the 10-14 x 15kg bags of sand you usually use to build a leaky wall like barrier in front of your robust door, and if belt and braces is your preference you can use both. 

Flood Trap's thin lightweight soft water activated seal is so light that pensioners or even a school aged child can fit between a door or window and its frame. When wet the soft polymer gel instantly swells to fill the gaps and so becomes an effective barrier to flood water entry. Boost your robust external door's seal so it can better resist even salt water floods keeping most surface water floods from entering.

How many packs do you need? 

On a typical 76cm wide UK front door without a door step 3 lengths of flood traps can line the bottom and run 52cm (1ft 8") up the sides of the door.

Two lengths would run 22cm (8 2/3") up the door. 
Add a door step +13cm (5") to 30cm (1ft) to the height of your door - shown in the below images - to establish the total depth of flood against which Flood Traps will provide protection.
Inflatable and sand filled sandbags and inflateable dams have to cover the steps before they even get to the door they are trying to protect from high pressure flood water entry - so you are forced to buy products that don't actually stop water from getting in through doors but are needed to get to the problem area; such a waste of resources destined for landfill.
3 x Flood Trap strips in a single pack protect against 65cm (25") to 82 cm (32") = 10-14 sandbags.
2 x Flood Trap strips protect against 35cm (13") to 52cm (20") deep floods.
For protection against deeper floods and use with basement and wider doors more lengths can be used to suit your needs.
Flood Traps kept contaminated overflowing drain water from entring through gaps around the doors on 4 properties in North Glasgow in November 2014, working well for as long as they remained wet and in position until the flood waters drained away, far better and more affordably than all previously tried solutions. 

Operations Director Paul Hendy at the independent Scottish Flood Forum reported Flood Traps were "tested & worked perfectly" when he saw how they kept water out of 4 homes in Glasgow. He went on to say they are an "Outstanding Success" and will bring benefit to many in need of an affordable alternative to sandbags.

To order please click here

Photo of flood water failing to drain following a heavy downpour as is seen more and more commonly as our climate changes and of Flood Traps being examined after swelling to protect 4 houses from surface flood in Glasgow. The last image shows the inside of one of the homes, previously repeatedly flooded but kept dry this time thanks to the Floodlock Flood Traps you can see in position between the door and its frame.


How do Floodlock Flood Traps work?

The water activated soft water-proof gel quickly swells within each length of flood trap boosting your door's seal against flood water pressure, it continues to help keep water at bay until it dries out or until the door is opened. Here you can see how much the wet portion of the Flood Trap strip has swollen while the portion trapped in the door remained thin and dry.


This image shows just how little you would throw away, compared to several sandbags.

As flood water pressure presses on the soft swollen water proof gel strips they are squeezed into the gaps between the door and the frame.

Now instead of flood water pressure forcing water through gaps around your doors it helps Floodlock strips of Floor Trap seal it out! 

Developed for Boston Borough Council who needs them to work against tidal sea and other salt water floods we devised a way for the strips to be pre-activated so they resist salt water. Folded each strip in half lengthwise and soak one half in a basin of tap water so that it swells up. Half of each length soaks up 1 litre of water. Trap the dry half of the trap tightly between the door and the frame as usual so it cannot be washed away with the strong tidal currents. Fitted this way the salt water cannot penetrate the gel, instead it helps create the seal against flood water ingress. Our video illustrates this well.

While kept dry, Floodlock Door Protection Strips can be stored in a draw for years, always ready to help you prepare for a flood whenever you need them.

Once used Floodlock strips can be buried or disposed of as household waste.

Each of the three strips in a pack absorbs 2 Litres of water, so can be used to soak up leaks, spills or flood incidents indoors and in hard to reach areas too!

Buy them now, before you need them and be ever ready to reduce water damage and recovery time whenever the next flood strikes - whatever the source. 

To order just click here


AppHere you can see Flood Traps protecting a window sill from condensed water on the windows, a washing machine leak when the filter is blocked and defrosting fridge freezer leaking water that would otherwise create a slip hazard on the floor.