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A guide to adapting your home or business to flooding, and how to pump water out of your property after a flood.
If your home or business is flooded it can be very disruptive and upsetting. It can also be expensive and take a long time to repair.
You cannot completely protect your home or business against flooding, but there is a lot you can do to reduce:
Some changes are simple and temporary while others involve permanent structural work.
Whether you rent or own your home or business, you should make these changes well before a flood – these are long-term adjustments.
Find out how else you can prepare for flooding.
It is important to check the risk of flooding in your area. Flooding can happen to you even if you don’t live or work near a river or the sea.
You can:
There is no way to completely stop flood water getting in, but you can make changes to protect your home or business.
You can:
To protect your walls and floors, you can apply:
Air bricks are bricks with holes that allow air to circulate under or through a property.
You can replace air bricks with self-closing air bricks, which close automatically during flooding to stop water entering. You can also buy watertight covers to put over your air bricks.
You can fit flood resistant valves to drains and water pipes. These valves close under pressure and stop sewage and dirty water flooding into your home or business.
You can place an inflatable bung in the u-bend of your toilet. This stops flood water coming up through the toilet and into your property.
You can make changes to your home or business to reduce the damage caused by flooding.
You can attach plasterboard (dry-lining) to walls. It is better to use horizontal plasterboard or lime-based plaster, not gypsum.
You can also get a special draining system for cavity walls.
Tiles fixed with waterproof adhesive and grout are better than fitted carpets.
If your home or business is at risk from groundwater flooding there are different floors that can reduce the damage:
Speak to a specialist about the best option for your property. You can find flood specialists at the Property Care Association.
Fix shelves high up on walls. If you have valuable or important items that you cannot move to another floor or storey, keep them on a high shelf.
Fix TVs or other home entertainment equipment on a wall, at least 1.5 metres (5 feet) from the floor.
You can fit water-resistant skirting boards, or you can varnish them.
You can put in hard wood or synthetic windows and doors. You can also wax or varnish them.
In a kitchen or bathroom, it is better to use water-resistant materials such as:
If you can, raise your fridge and other appliances by putting them on a plinth.
To reduce the risk of electrical problems during a flood, you can raise the following to at least 1.5 metres (just under 5 feet):
You can use a water pump – such as a puddle pump – to divert or remove small amounts of water from your home.
If you are removing large amounts of water from your home, you should consider the following:
A pump can run on electricity or fuel (petrol or diesel):
If you are pumping flood water out of your home you may need a permit. Find out about getting permission to pump out water.
Sewage (or foul water) is the name for waste from sinks, baths and toilets. During a flood, sewage can contaminate flood waters. This is very dangerous to human health.
Sewage leaves your home in one of the following ways:
If the sewage from your home drains or flushes into the public sewer this is called mains drainage.
You can fit flood resistant valves to drains and water pipes. These valves close under pressure and stop sewage coming back into your home.
After a flood, your water company or housing association can help with sewage problems.
On-site drainage is when sewage from your home drains or flushes into a:
Package treatment plants contain electrical components so a specialist should check them after flooding.
There are often problems with septic tanks during groundwater flooding. You should contact the Environment Agency and seek specialist advice.
A cess pit is a sealed, underground tank so it should be unaffected during groundwater flooding.
You should speak to your drainage contractor before emptying your package treatment plant, septic tank or cess pit after a flood. In extreme cases, emptying after a flood can cause the tank to lift out of the ground.
You can find flood protection products and services at Blue Pages.
Find information about tested and kitemarked flood products
Find flood specialists at the Property Care Association
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