The Garden Tap's Winter Send-Off: Ten Minutes Now, No Burst Pipe Later

By mid-November 2026, the garden has usually gone quiet. The lawn is more moss than grass, the barbecue is under a cover, and the outside tap is still sitting there like it has nothing to do with winter. That is exactly the problem. An outdoor tap is a small piece of plumbing with a direct line to the cold, and if it is left full of water it can turn a ten-minute job into a plumber's visit, a damp wall and a bill you did not plan for.

The good news is that this is not a difficult job. You do not need to be handy. You need to find the right valve, open the tap, let the water go, and spend a few minutes checking the bits you can see. Think of it as saying goodbye to the garden for the season rather than doing battle with the plumbing.

Why an outside tap is a winter liability

Most garden taps are fed by a narrow pipe that comes through the wall from inside the house. Sometimes there is an isolation valve close by; often there is not. When water sits in that pipe and the temperature drops below freezing, it expands. Metal and plastic do not enjoy expanding water. Something has to give, and it is usually the pipe or the tap body rather than the brickwork.

The frustrating part is that the damage may not show up immediately. A hairline split can weep quietly inside the wall cavity or behind a kitchen unit. You might not notice until the thaw, when a damp patch appears, the insulation is sodden, or water starts finding its way somewhere expensive. A split outside pipe can mean a plumber, replacement pipework, making good inside, and possibly a higher water bill if the leak runs unnoticed. None of that is dramatic, but it is all avoidable.

First, find the isolation valve

Before you touch the tap, look inside the house. The pipe feeding the outside tap usually enters near the kitchen, utility room or downstairs loo. Trace it back from where it leaves the wall and look for a small valve with a handle. Turning that off means the outdoor section is isolated from the mains.

If you find one, turn it fully off and give the outside tap a quick open to check the water stops. If the valve is stiff, do not force it until your arm shakes. A seized valve is a job for someone who knows what they are doing. If there is no isolation valve at all, make a note to have one fitted before next winter. In the meantime, you can still drain the tap, but the pipe will remain connected to the mains, so lagging any exposed section becomes more important.

Drain the tap properly

With the supply off, open the outside tap fully. Let it run until it stops. Leave the tap open afterwards. This sounds odd, but it gives any remaining water room to expand without splitting the tap body.

If there is a small draincock nearby, open that too and let it drain. If there is no draincock and you are comfortable with a spanner, you can gently loosen the compression nut on the tap by a quarter turn to release residual water, then tighten it again. Do not wrestle with it. If it feels stuck, leave it and call a plumber. A drained tap is helpful; a snapped pipe is not.

Hoses, reels and irrigation

A hosepipe left connected is basically a long, flexible water container. Disconnect every hose from the tap, empty it as best you can, coil it up and store it somewhere frost-free. Same for hose reels. If you have a drip irrigation system or a timer, remove the batteries, open the ends of the lines and let them drain. A timer full of frozen water is a small but irritating expense.

Water butts can stay out, but check that taps and diverters are not dribbling. A dripping water butt tap can create a mini ice rink by the back door, which is not the welcome you want for a delivery driver.

Check for drips, damp and frost damage

Before you close the door on the garden, have a proper look. Is the tap dripping even when it is turned off? A worn washer is cheap to replace and much easier to deal with now than when the tap is frozen solid. Is there green staining or damp brickwork around the pipe entry? That can suggest a slow leak. Is the tap loose in the wall? Give it a gentle wiggle. If it moves, the pipe behind may need attention.

If you find a pipe that has already frozen, do not attack it with a blowtorch. Warm it gently with a hairdryer on a low setting, or call a plumber. If it has split, isolate the supply if you can and get help.

The cost of leaving it

A ten-minute drain-down costs nothing but a little time. Ignoring it can lead to a split pipe, water tracking into a wall, damaged plaster, soaked insulation and a repair bill that easily runs into hundreds of pounds. Your home insurance may help, but the excess and the hassle are yours. The maths is not complicated.

A ten-minute routine you will actually do

Turn off the isolation valve. Open the outside tap. Let it drain. Open any draincock. Disconnect and drain hoses. Empty irrigation lines and remove timer batteries. Check for drips and damp. Lag any exposed pipe if you can. Leave the tap open. Make a note in your home maintenance record, and set a phone reminder to check it after the first really cold snap.

That is it. No drama, no special tools, no need to become a plumbing enthusiast. Just a sensible bit of seasonal housekeeping that protects the house while the garden sleeps.