3. Turn off your water supply
Hopefully, your heating system should be able to stop your plumbing from freezing. But if you want to be extra careful with your home maintenance, you can turn off your water supply just in case. That way, if any of your pipes do freeze and burst, any leaking should be minimal.
First, you'll need to find the main stopcock for your home. This is the valve that lets you cut off the water supply to the whole house, and it's usually found under your kitchen sink. Regardless of whether you're going away on holiday, it's important to find out where your stopcock is – if you ever have a messy plumbing emergency, you'll be glad you know how to turn off the water supply quickly.
When you've found the stopcock, it might be difficult to turn. Start by working the stopcock handle back and forth until it begins to loosen, and then turn it clockwise, as far as it'll go, to shut off the water. You can see exactly how it's done in our handy video guide to turning off your water supply
Once the stopcock is fully closed, open the lowest tap in your water system to dissipate the pressure, and when no more water's coming out, you've switched off the supply.