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uk Home & property emergencies

What to do if…
stormwater is pooling against your foundation and rising toward entry points

Produced and maintained by PanicStation.org Published: Last reviewed: Editorial policy UK guide

Short answer

Move people and pets away from the water, then divert rainwater or surface water away from the building and block the lowest entry points if you can do so safely. Avoid water that may be touching electrics, gas equipment, sewage, or fast-moving flow.

Do not do these things

  • Don’t step into water if it may be touching sockets, extension leads, outside lights, boilers, consumer units, or buried electrics.
  • Don’t open doors to let water through the house; it can increase damage and make it harder to leave.
  • Don’t lift drain covers or manhole covers while water is surcharging; covers can shift and the water may be foul.
  • Don’t run electrical pumps, tools, or extension leads from wet areas or with wet hands.
  • Don’t rely on sandbags or towels to fully stop water; they may only slow it.
  • Don’t walk or drive through flood water unless emergency services tell you to.
  • Don’t ignore gas risk. If you smell gas or suspect a leak, leave the building if needed and call the National Gas Emergency Service on 0800 111 999 from a safe place.

What to do now

  1. Get to a safer pause.
    Keep children and pets away from the pooling water, low vents, cellar steps, garage thresholds, and any water near power. Put on shoes or boots before going near wet areas.

  2. Check the lowest places water could enter.
    Look first at doors, low vents and air bricks, garage door gaps, cellar or basement steps, light wells, and any low-level service openings.

  3. Find the main flow path.
    From a dry, safe place, look for overflowing gutters, blocked gullies, blocked grates, downpipes discharging beside the wall, runoff down a drive or path, or water collecting against an external wall.

  4. Clear only easy blockages you can reach safely.
    If you can do it without standing in flood water, clear leaves and debris from gullies, grates, channel drains, and downpipe outlets. Stop if the water is deep, fast, foul-smelling, or near electrics.

  5. Divert water away from the building.
    Redirect a downpipe outlet away from the wall with a temporary extension, hose, tray, board, or plastic sheet if you have one. Use a broom, squeegee, board, or heavy plastic to push or guide shallow water away from thresholds. Only cut a shallow temporary channel in soft ground you know is safe, away from cables, pipes, and neighbours’ property.

  6. Block the lowest entry points first.
    Prioritise the door, air brick, garage threshold, cellar steps, or light well closest to the rising water. Use fitted flood boards, air-brick covers, or threshold barriers if you have them. If you do not, use heavy plastic sheeting with towels or blankets as a compressible seal, then brace it with a board or other weight.

  7. Move essential items up before water gets inside.
    Move medicines, documents, phones, chargers, pet supplies, and small valuables upstairs or onto high shelves. Do not carry heavy items through water or across slippery steps.

  8. Protect electrics only from a dry, safe position.
    Only switch off electricity if you can reach the consumer unit or fuse box without standing in water or touching wet surfaces. If you cannot safely isolate the supply, or you see damaged outside electrical equipment, call 105 to reach your local electricity network operator. If there is immediate danger to life, call 999.

  9. Check flood and weather information once entry points are stabilised.
    Check GOV.UK flood information, your local council’s emergency or out-of-hours flooding route, and Met Office weather warnings. Flood warning services may not cover surface water flooding, so do not wait for an alert if water is already rising at your property.

  10. Tell the right people when you are out of immediate danger.
    Report blocked drains, road flooding, or public drainage problems to your local council. If water has entered or is about to enter the building, contact your buildings insurer’s emergency or claims line when it is safe.

What can wait

  • You do not need to decide today about builders, permanent drainage works, or who is at fault.
  • You do not need to start ripping out carpets, drilling walls, or opening up floors while water is still rising.
  • Detailed photos, inventories, clean-up plans, and quotes can wait until the water has stabilised and it is safe to move around.
  • Long-term fixes such as new gullies, soakaways, landscaping, flood doors, or air-brick changes can wait until the immediate risk has passed.

Important reassurance

This can feel sudden and out of control. A few focused actions can still help: keep away from electrical hazards, move essentials up, divert the flow, and block the lowest gaps first.

Scope note

These are first steps only to reduce harm and buy time. Later decisions may need help from your insurer, a qualified electrician, a drainage contractor, a flood-resilience specialist, or your local authority.

Important note

This is general information, not legal, financial, engineering, electrical, medical, or professional advice. If you cannot act safely, especially around electricity, gas, deep or fast water, or suspected sewage, stop and contact emergency services or the relevant emergency operator.

Additional Resources

About this guide

This guide was produced and is maintained by PanicStation.org using its published editorial process. Official and specialist sources are checked where relevant, and AI-assisted tools may be used for drafting, organisation, and consistency checks. The site operator remains responsible for publication, revision, and removal decisions.

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