Burst Pipe or Flood? How to Dry Your Home Out Fast (and What to Hire)

Water in the house is a race against the clock. Here is how to dry it out properly, in the right order, with the same kit the professionals use — without paying a restoration firm to do it for you.

Sources: Association of British Insurers; restoration-industry water categories (IICRC S500); UK hire vs call-out price anchors. Figures are typical, not guaranteed.

If you have water where it should not be, you are racing two clocks at once: the water spreading and soaking, and mould, which can take hold within 24 to 48 hours. Getting air moving and moisture out quickly is what limits the damage — and it is work you can largely do yourself, as long as the water is clean and the problem is not structural.

First, stay safe

Before you touch anything, isolate the danger. If water has reached sockets, wiring or your consumer unit, switch off the electricity and gas at the mains and leave them off until a qualified person has checked them. Wear waterproof gloves and sturdy boots — standing water often carries contamination you cannot see. Then photograph everything before you move it: if you are insured, your insurer will want evidence before you strip anything out.

Why the first 24 to 48 hours decide everything

Water does not stay the same. The restoration industry grades it in three categories, and clean water does not stay clean for long — once it sits against carpet, plaster and dust it picks up contamination and drops a grade, often within a day. That is why speed matters more than anything else.

The drying method that actually works

Drying a building is not complicated, but the order matters — each step sets up the next.

1. Get the standing water out

Remove as much water as you physically can first. A submersible pump clears the bulk; a wet-and-dry vacuum picks up the rest. Shovel out any silt before it dries hard.

2. Open up and warm up

Open windows and internal doors to get air moving, and unblock any air bricks. If your heating is safe to use, hold a steady 20 to 22°C — gentle constant warmth dries better than blasting heat. Once a dehumidifier is running, close the windows and keep internal doors open so the machine works on dry-able air, not the damp outdoors.

3. Add air movers and a dehumidifier

This is where hired kit earns its keep. Air movers push a high-volume stream of air across wet surfaces so moisture evaporates far faster; a dehumidifier then pulls that moisture out of the air and collects it so it cannot soak back in. You need both: the air mover lifts the water out of the material, the dehumidifier takes it out of the room.

Which kit do you need?

It depends on how much floor area is wet and how saturated it is. As a rough guide:

Small

One or two rooms

An air mover plus a 38L dehumidifier — the everyday burst-pipe set-up.

View the 38L

Medium

Several rooms / heavy soak

Two or more air movers and a higher-capacity 43L unit to keep pace with the moisture.

View the 43L

Large

Whole floor / building

A building dryer such as the 63L LGR with multiple air movers for sustained drying.

View the 63L

DIY drying vs a restoration company — the real cost

Restoration firms do excellent work, but you pay for a call-out, daily equipment, labour and a report. For a clean-water leak in a space you can reach, hiring the same class of kit and running it yourself costs a fraction. The work is the same physics, not magic — so done promptly and properly, it can dry the room just as effectively.

UK price anchors (Checkatrade / Airtasker / hire market); figures are typical, not guaranteed, and savings depend on the job. The DIY route applies to clean water, source stopped, accessible, small scale only — not sewage, structural or large floods.

How long will it take?

Honestly, longer than most people hope. Surfaces can feel dry in a few days, but moisture trapped inside walls, screed and timber takes far longer to leave — commonly several weeks, and sometimes months, according to local-authority flood advice and the restoration trade. Anyone promising a fixed number of days without seeing your property is guessing. The single biggest factor in your control is running enough equipment, continuously. More in our guide on how long it takes to dry out a room.

What it costs to run

Two costs matter: the hire, and the electricity to run the kit while it works. Because a dry-out runs for days or weeks, the running cost is worth understanding up front — and a modern dehumidifier is cheaper to run than people expect. We break the numbers down in how much it costs to run a hired dehumidifier.

Insurance: who pays?

Water damage is one of the UK’s most common home-insurance claims — the ABI reports insurers pay out around £1.8 million every day for escape of water alone. If you are insured, a burst pipe or leak is usually covered, and your insurer may arrange the drying equipment — call them before you spend. If you are not insured, or you would rather start drying now than wait for an assessment, hiring the kit yourself is often the fastest way to limit the damage. Higher-risk flood homes are also helped by Flood Re (residential homes built before 2009, running to 2039; it does not cover commercial property or larger leasehold blocks).

Is your area at risk?

Flood risk in the UK is bigger, and more local, than most people realise. The Environment Agency’s 2024 assessment found 6.3 million English properties at risk from at least one source, 4.6 million of them from surface water — now the biggest single source — and nearly 320,000 high-risk surface-water properties in London, the largest share of any region. In London the surprise is that the main threat is not the Thames but surface water: flash flooding when heavy rain overwhelms the drains. Check your own postcode on the government’s Check for flooding service.

Source: Environment Agency, National Assessment of Flood Risk (December 2024); London figure via the Greater London Authority. The rise in the surface-water figure mainly reflects better mapping, not a sudden change in the weather.

Common questions