Water features come in a variety of shapes and sizes. Choosing the right water feature for your garden will depend a lot of where you want it to be positioned and the size of the garden. You may want your water feature to be a focal point in your garden but you do not want it to look out of place.
There is quite a big price range for water features from less than a hundred pounds upwards of a thousand pounds. Think carefully about where you want to position the feature. If you have a seating area you may want it near to there so it can be admired when you are sat outside but not too close that it would be loud if you are trying to have a conversation.
Most water features will need a pump which will be ran off electrics. You will need somewhere to plug the feature in. it is not a good idea to use extension leads and have the pump plugged in inside the house. You should get a proper electrical socket installed outside which will be able to cope with the wet weather.