What to check before buying an outdoor tap

Almost every outdoor tap sold in the UK is a bib tap, a tap with a downward-facing, threaded spout for attaching a hose. The real choice is between a standard bib tap and a frost-proof tap, which sets its valve back inside the warmer wall cavity so the exposed section drains automatically once it's turned off, removing most of the risk of a burst pipe in a hard freeze.

Most of our picks are standard bib taps, which is what most UK gardens use. Each card says whether that tap needs draining down before winter, so you know exactly what you're signing up for.

Which tap suits which job

A single brass bib tap covers most gardens. Double outlet taps let you run two hoses, or a hose and a watering can, without swapping connectors. Lockable taps suit a front garden or a shared space where you don't want anyone else using your water, and portable post taps suit renters or allotments where you can't fix anything to a wall.

Brass or plastic

Brass taps last longer and cope better with knocks, frost and years of hoses being yanked on, which is why most of our picks use it. Plastic taps are cheaper and won't corrode, but they can turn brittle after a few summers in direct sun. Whichever you choose, fit it high enough to stand a watering can underneath, and low enough that a hose connector isn't pulling on the pipe behind it.

The double check valve

Water regulations require backflow protection on an outdoor tap, so that dirty water in a hose can't be siphoned back into the mains. That usually means a double check valve, either built into the tap or fitted in the pipe feeding it. Check the listing, and if the tap doesn't have one, fit one in the supply.

Measure these before you order

Check the size of the pipe you're connecting to and the tap's inlet thread, since outdoor taps are usually sold with a BSP thread to fit a wall plate elbow. Also check your hose connectors suit the tap's outlet, as outdoor taps don't all share one outlet size.

How much to spend on an outdoor tap

Budget outdoor taps start around £15 to £30 and work fine for light, occasional use (figures from our last check). Mid-range and frost-proof taps from £30 to £70 are worth the extra for most UK gardens, and lockable models at a similar price add peace of mind on a water meter or a shared garden. Our full guide to choosing an outdoor tap covers fitting, hose connections and double check valves in more detail.

Wall-mounted taps are the standard choice and the simplest to plumb in, while a post-mounted tap sits further out in a larger garden or allotment but needs its own buried supply pipe run out to it, worth planning for before you dig.

Common outdoor tap mistakes

Skipping the indoor isolation valve is the mistake people regret in January. Without one you can't turn the outside tap's supply off and drain it for winter, which is the cheapest protection against a split pipe. Our guide to protecting outdoor taps from freezing covers the full routine.

The other is leaving a hose connected over winter. Water trapped in the connector and hose can freeze back into the tap body, so disconnect it once the gardening season is over, even on a frost-proof tap.