A big benefit to concrete is that you can paint it, making it easy to customise and coordinate with your outside area. However, it’s easy to resurface it too, so if you change your mind or inherit a patio that’s the wrong colour, you don’t need to worry.Start by cleaning the surface with water and a brush. If you come up against any tough stains, you might need to use a detergent and water mix to remove them. Then you can prepare your resurfacer. Generally, it’s best to apply resurfacer to a moist surface, although make sure you follow the instructions on the specific product you buy. You’ll need to mix the resurfacer with water, then pour and spread it on with a trowel or brush. You might need to apply multiple coats, and can add texture if you want to make the surface more grippy.Ensure you protect any expansion joints in your patio with duct tape or weather stripping to stop the resurfacer from filling them in. You can also add a colour agent to your resurfacer before you apply it if you’d like to customise the colour.