Installing Electricity in Your Shed

There are a few steps you need to follow whether you want to install electricity to run a shower or some heating. (Or just to be able to watch the game away from the house!).

But the first question is, as your garden building is out in the elements year-round:

Is it weather-resistant?

Any electrician worth their salt isn’t going to rig up your summerhouse unless it’s safe to do so.

This is why you should always work with an accredited electrician. But before you even get to that point, you’ll need to think about waterproofing your shed roof for electrics.

Once you’ve done that, you can move on to how you intend to use the space. By check out our helpful guide.

Garden shed with front windows at the end of a garden on a gravel patch

What you’ll need is two sets of pipes running to your shed. One will bring clean water in, and one will take dirty or ‘grey’ water out.

The new pipework will need to be sunk in a trench dug at least 750mm underground, however. Remember earlier when we said you could save money by digging trenches yourself? Well, it’s time for round two!

You’d also do well to line your trench with a bit of builder’s sand like we suggested for your conduits. Trust us, it’s no fun having to dig up pipes after they’ve burst. 

In addition to these two pipes, your plumber will need to find a spot to get rid of all that grey water. This must be done with a soil drain point, not a rainwater drain. But if you already have one, you can always just add a connection and a Shop Garden Sheds



Most outbuildings come under what is called ‘permitted development’, including an outside toilet. However, if you’re planning on turning your outdoor garden building into a fully livable space, you may need to apply for permission. 


Read more about the rules and guidelines here.


It depends, although the answer is probably yes. For example, you’ll need to connect to the mains water from your house unless you’re simply using guttering or a rainwater tank. You’ll also need a soil drainage point. 


However, things like grey water from multiple appliances can utilise the same pipework.


The same principles apply for running plumbing from your main house to a shed or a detached garage. You’ll need to dig trenches for new pipework and settle on what water solution you want. 


Yes, (technically) but only for short periods of time. You can’t, for example, bury your un-armoured extension cord or leave it running. Otherwise, you run the risk of blowing circuits. Plus, it’s not a long-term plan. You’d be much better off installing electricity in your shed.